PD7777-8H series multifunctional digital panel meters
ZTY0.464.545
User manual
Page 1, Total 44
PD7777-8H series digital harmonic multi-functional panel meters
User manual ZTY0.464.545
Zhejiang CHINT Instrument&Meter Co.,Ltd. May, 2011
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PD7777-8H series multifunctional digital panel meters
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User manual
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Directory 1、 1.1 1.2 1.3 1.4 2、 3、 4、 4.1 4.2 4.3 4.4 5、 5.1 5.2 5.3 6、 6.1 6.2 6.3 7、 8、 9、 10、
summary ......................................................................................................................................................... 2 manufacturing standard............................................................................................................................... 2 main application.......................................................................................................................................... 2 product features .......................................................................................................................................... 3 product type definition................................................................................................................................ 4 Structural feature and work principle.............................................................................................................. 4 Main technical performance and parameters .................................................................................................. 4 external instructions and installation .............................................................................................................. 5 external drawing and dimension ................................................................................................................. 5 installation method...................................................................................................................................... 5 wiring method ............................................................................................................................................. 6 diagnosis、analysis、exclusion of common fault.................................................................................... 10 Programming instructions............................................................................................................................. 11 function description .................................................................................................................................. 11 Menu introduction and operation.............................................................................................................. 11 system settings .......................................................................................................................................... 21 communication function ............................................................................................................................... 33 function instructions ................................................................................................................................. 33 instructions of communication parameters ............................................................................................... 34 conversion of power data.......................................................................................................................... 39 Precautions.................................................................................................................................................... 39 maintenance and repair ................................................................................................................................. 39 packing, transportation and storage .............................................................................................................. 40 AppendixⅠ Communication protocol......................................................................................................... 41
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1、 Summary 1.1 Manufacturing standard GB/T 22264.1-2008《mounted digital display electrical measuring instrument Part 1: definition and common requirements》 GB/T 22264.2-2008《mounted digital display electrical measuring instrument Part2:special requirements for Ammeters and Voltmeters》 GB/T 22264.3-2008《mounted digital display electrical measuring instrument Part3:special requirements for power meters and reactive power meters》 GB/T 22264.4-2008《mounted digital display electrical measuring instrument Part4:special requirements for frequency meters》 GB/T 22264.5-2008《mounted digital display electrical measuring instrument Part5: special requirements for phase meters and power factor meters》 GB/T 22264.7-2008《mounted digital display electrical measuring instrument Part7: special requirements for multi-functional meters》 GB/T 22264.8-2009《mounted digital display electrical measuring instrument Part 8: recommended test method》 GB 4793.1-2007《safety requirements of electrical devices used for measuring, controlling and laboratory Part 1:common requirements》 GB/T 17215.322-2008《static active energy meter（class 0.2S and class 0.5S）》 GB/T 17215.323-2008《static reactive energy meter(class 2 and class 3)》 1.2 Main application PD7777-8H series multifunctional digital panel meter (hereafter it’s called meter for short) is mainly used for high accurate real-time measurement and display of the voltage, current, active power, reactive power, apparent power, power factor, frequency, four-quadrant electric energy, voltage、 current harmonic content (2nd~31st), voltage、degree of unbalance of current (including positive sequence, negative sequence, zero sequence), etc. in electrical circuit. The meter has the functions of switch input, switch output, analog output, RS485 interface, USD interface, etc. The meter can be widely used in industrial automation and control, energy management system, substation automation, distribution system automation, power distribution, complete equipment, switchgear, intelligent switchboard, etc., to accomplish industrial automation and control and communication network. 2
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Data source
20110819
compile
20110824
Check
·
20110824
Standardization
Proposed department
20110824
approval
20110824
authorize mark
处数
File number change
signature
date
responsibility
signature
date
1.3 Product feature 1.3.1
adopt true RMS measuring, high accuracy, can measure waveform distortion accurately;
1.3.2 adopt 4.3-inch lattice (480*272) colorized LCD sketch display, the interface is intuitive and friendly; 1.3.3 adopt touch screen operation, to replace mechanical keystrokes, the operation is flexible and convenient; 1.3.4 can high-accurately measure the voltage, current, active power, reactive power, apparent power, power factor, frequency, etc. electric parameters in the power network; 1.3.5 can high accurately measure four-quadrant electric energy; 1.3.6 can measure the 2nd~31st harmonic content of the voltage、current, total harmonic distortion, bar graph of the display harmonic in the power network; 1.3.7 can display voltage、 current positive sequence, negative sequence, zero sequence, degree of unbalance, etc. power quality parameters; 1.3.8 can real-time display voltage、current waveform online, observe real-time condition of power grid, can realize voltage、current phase sequence regulation, loss of phase detection, etc. functions; 1.3.9 provide 1 way active energy and 1 way reactive power impulse output; 1.3.10 provide 4 way relay switch output function, can realize upper and lower limit alarm output, the relay contact capacity is AC250V/2A、DC30V/2A; 1.3.11 provide 4 way switch input state indication function, adopt passive stem node resistive signal input method; 1.3.12 provide 2 way analog transmitting output, transmitting specification is 4~20mA、0~20mA、 0~10mA optional, the voltage output can be custom-made 1.3.13 has RS-485 communication interface, adopt standard ModBus-RTU communication Protocol, baud rate can be set; 1.3.14 each switch quantity has 500 SOE event record function; 1.3.15 has 500 manual and automatic fault wave recording function; 1.3.16 preserve one year load curve data record continuously; 3
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1.3.17 has USB data conversion function, can transfer fault waveform, SOE event and load curve、 power data, etc. 1.3.18 adopt modular structural design, SMT production technology; 1.3.19 adopt full digital adjustment, the voltage and current ratio can be set freely; 1.3.20 adopt compact wiring method and structural design. 1.4 Product type definition P □ 7777 - □ □ Extended functions H：with harmonic measuring
External size of the meter 8:120mm×120mm
Design code Meter type D: multi-functional meter
Product code for digital panel meters 2、 Structural feature and work principle The meter has the functions of easy installation, easy disassembly and maintenance, the structural design of the meter has been applied for a number of patents. The casing of the meter is made from engineering plastics with corrosive resistance, impact resistance, fireproof and good insulation properties. elaborate seal design of the front panel can effectively prevent the invasion of dust, moisture and corrosive gas. 3、 Main technical performance and parameters Technical parameters Accuracy class Input
Index voltage、current、frequency、active power、active energy: class 0.2，power factor、reactive power class 0.5，reactive energy: class 2
Measuring network voltage
3 phase 3 wire、 3 phase 4 wire
Rated value
AC 100V、220V、380V
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Overload Power consumption resistance Rated value current
overload Power consumption resistance frequency harmonic Switch input Alarm output
Transmitting output Power impulse output constant Output communication
Power supply
safety
Display method Calendar & clock USB interface range Power consumption Input & output auxiliary power Withstan Input & output d voltage Input & output auxiliary power Insulation resistance Heat resistance & fireproof
EMC
environment
Electrostatic discharge Fast transition pulse group High frequency electromagnetic field temperature humidity elevation
continuous：1.2 times，instant：2 times/1s Adopt red font identification when the rated value is over 1.2 times <2VA(per phase) >500KΩ AC 1A 、5A continuous：1.2 times，instant：10 times/1s Adopt red font identification when the rated value is over 1.2 times <1VA(per phase) <20mΩ(per phase) 45Hz～65Hz voltage、current 2nd～31st harmonic 4-way passive stem node resistive signal input method Upper and lower alarm one relay output, contact capacity AC250V/2A、DC30V/2A DC0～10mA、0～20mA、4mA～20mA，class 0.5，output load≤500Ω,voltage output can be custom-made 2-way power impulse output, optical isolation active：10000imp/kWh，reactive：10000imp/kvarh RS-485 communication interface，MODBUS-RTU communication protocol, baud rate1200、2400、4800、9600、 19200 optional 4.3-inch TFT lattice（480*272）LCD Clock error：0.5s/d（reference temperature：23℃） Host module AC、DC85V～264V ≤15VA >2kV 50Hz/1min >2kV 50Hz/1min >2kV 50Hz/1min Auxiliary power supply、input、output for casing>100MΩ Terminal block：960℃、casing：650℃、application time： 30s ±8kV ±1kV 80MHz～1000MHz,10V/m working：-25～55℃，storage：-25～50℃ ≤95%RH，non-condensate, non-corrosive gas ≤2500m
4、 External instructions and installastion 4.1 External drawing and dimension
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Panel size
Casing size
cutting size
（width×height）
（width×height×depth）
（width×height）
120mm×120mm
112mm×112 mm×114mm
114mm×114mm
Model PD7777-8H
weight
Figure 4.1.1 front view
Figure 4.1.2 back view
Figure 4.1.3 side view 4.2 Installation method 6
About 500g
PD7777-8H series multifunctional digital panel meters
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1) Take the meter, clamping parts and manual out; 2) Cut a hole in the installation screen according to the external and installation size of the meter; 3) Push the clamping parts into the card groove of the meter after the meter is embedded into the installation hole, and push tightly by hand. 4.3 Wiring method 4.3.1
Signal input
3 phase 4 wire direct voltage input, current input via CT
3 phase 3 wire direct voltage input, current input via CT
3 phase 4 wire input via CT, PT
3 phase 3 wire input via CT, PT
Instructions： 1) voltage input: the input voltage should be no more than the rated input voltage of the product(100V,220V or 380V), otherwise PT should be used, the secondary side of PT can not be short-circuited, it’s recommended to install 1A fuse wire in the voltage input terminal; 2) current input: standard rated input current is 5A or 1A, external CT should be used when it’s over 5A or 1A, the secondary side of CT can be not open-circuited. If the used CT has other meters connected, the wiring should adopt series connection, the primary loop of CT should be open or the secondary loop of CT should be short-circuited before the current of the disassembling product inputs the wiring. It’s recommended to use line bank for easy
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disassembly; 3) make sure input voltage, current corresponding, sequence consistent, direction consistent; otherwise it will occur numerical and symbol errors(power, power factor and energy). 4.3.2
Switch output
Schematic Figure of switch output terminals The meter provides 4-way relay switch output function, can be used for alarm indication, protecting control output functions in all kinds of places. When switch output is valid, the relay is on, when switch output is on, the relay is off.
1) each output can be equipped with remote control and alarm function ( alarm is divided into upper alarm and lower alarm) 2) when the output is set as remote control, it can control the state of the switch quantity by host computer; 3) when the output is set as alarm function, more than 36 electrical parameters can be chosen as the alarm parameters, the alarm value can be modified by manual or communication of host computer; 4) electrical parameters; load parameter AC250V/2A,DC30V/2A.
4.3.3
switch input
Schematic Figure of switch input terminals The meter provides 4- way switch input detecting function, adopt passive stem node resistive signal input method, external power supply is needless. When the external is on, sample the connection
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information through switch input module of the meter, the interface display is on-state. When the external is off, sample off information through the switch input module of the meter, the interface display is off-state. Electrical parameters: Ri<500Ω is on, Ri>100kΩ is off. 4.3.4
Analog transmitting output
Schematic Figure of analog transmitting output The meter provides 2-way analog transmitting output function, each way can choose and set any one in the 26 electrical parameters, it can realize analog output function of the electrical parameters through analog transmitting module of the meter. Electrical parameters: current output 0~10mA, 0~20mA, 4~20mA, output load≤500Ω, the voltage output can be custom-made; Accuracy: class 0.5 4.3.5
RS-485 communication
RS-485 communication terminals The meter provides 1-way 485 communication interface of industrial Modbus protocol, can realize network communication for max. 247 slave computers at the same time. Electrical parameters: characteristic impedance is 120Ω, input resistance≥48kΩ. Baud rate: 1200bps, 2400bps, 4800bps, 9600bps, 19200bps optional. 4.3.6
Power impulse output
Schematic Figure of power impulse output terminals The meter provide four-quadrant power measurement function, 2-way power impulse output function 9
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(P: active, Q: reactive). Power impulse adopts open-collector optical coupling isolation output to realize the remote of the active and reactive energy. The accuracy of the energy can be tested by impulse output method. Electrical parameters: impulse sampling interface circuit Vcc≤5V, lz≤50mA. Impulse constant: 10000imp/kwh (kvarh). 4.3.7
Auxiliary power supply
Schematic Figure of auxiliary power terminals The meter can only work normally with external auxiliary power supply (please see the specification in the label of the meter), it has the common (AC/DC) power input terminal, limit working voltage is AC/DC85V~264V. In case the meter will be damaged accidentally, it’s recommended to install 1A fuse wire on the live wire side when it is AC power supply, in the area where the power quality is poorer, it’s recommended to install surge suppressor and fast impulse group suppressor in the power circuit. 4.4 diagnosis、analysis、exclusion of common fault 4.4.1
no display when the meter is power on
make sure the supplied power is suitable for this series of meter or not before power on, and check if the connection of the meter is correct or not carefully, if the connection Figure is different from that in the casing of the meter, please take according to the connection Figure in the casing. Turn the multi-meter gear to 1000V AC, and check if the auxiliary power supply has the required voltage for working. 4.4.2
No change of the measurements while the input signal changes
Check and ensure the connection of the signal input terminals is right, contact is reliable, can measure on-off condition of the corresponding signal input terminals through on-off gear of the multi-meter. 4.4.3
The symbol of power、power factor and power data is incorrect
Check again the input voltage, current corresponding, phase and direction are consistent.
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4.4.4
Communication failure Enter communication settings interface, check if the four parameters of the meter including
communication address、baud rate、check bit、stop bit are the same as the setting of the host computer, and there are no a number of slave devices (two or above) with the same address in the network. If the fault still can not be cleared with the above method, or other abnormal phenomena occurs, please contact Zhejiang CHINT Instument&Meter Co.,Ltd. 5、 Programming instructions 5.1 Function description The meter can measure all the electrical parameters in the power network, take 3 phase 4 wire input network as an example: can measure Ua、Ub、Uc（phase voltage），Uab、Ubc、Uca（line voltage）， Ia、Ib、Ic（current） ，Pa、Pb、Pc、P（active power），Qa、Qb、Qc、Q（reactive power），Sa、 Sb、Sc、S（apparent power），F（frequency），PFa、PFb、PFc、PF（power factor） ，voltage、current harmonic content（2nd-31st），voltage current total harmonic content THD，egree of unbalance of voltage ，voltage positive sequence component、negative sequence component、zero sequence component，current positive sequence component、negative sequence component、zero sequence component and four-quadrant energy. Can carry out fault wave record, manual wave record, load curve, vector Figure. 5.2
Menu introduction and operation After the meter is power on, display main interface, as the drawing shows 5-1 interface includes 3
parts: main display area, menu bar and status bar. There is menu bar on the left and right side of the interface, 8 function menu items, including “electric quantity”, ”electric energy”, “harmonic”, “power quality”, ”switch quantity”, ”analog quantity”, ”waveform events”, ”system management”. It is status bar under the interface, including “help”, ”full screen switch”, ”time information” from left to right. The rest area is the main display area.
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Figure 5-1 main interface
Figure 5-2 help interface
Figure 5-3 time interface
5.2.1
Figure 5-4 test to U disk interface
Operation of status bar
1) help：click on this area, can display help information, as Figure 5-2 shows, click the red fork on the top right corner, exit the help interface. 2) Full screen：click on this area, the main display area is enlarged full screen display, click on any area of the screen after full screen, exit full screen. 3) time：click on this area, can display time information, as Figure 5-3 shows, click “cancel”, exit the time display interface. 4) USB: after insert U disk, there is USB mark in the status bar, full screen mark disappears at the same time, as Figure 5-4 click USB mark and pop up data transfer dialog box, as Figure 5-5 shows, click “OK” button and carry out data transfer, click “cancel” button and then exit data transfer dialog box.
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Figure 5-5 USB pop up dialog box interface
5.2.2
Figure 5-6 all power parameters interface
Power menu operation Under the main interface, click “energy” menu entering all power display interface, as Figure 5-6
shows,
including
“all
electric
quantity”,
“phase
electric
quantity”, ”voltage”, ”current”, ”power”, ”power factor”, ”frequency”; switch to the corresponding display interface by clicking each sub-menu, click “return”can return to the main interface display. Each interface content displays as following: 1) All electric quantity：display all the power parameters, as Figure 5-6 shows; 2) Phase electric quantity：display A、B、C phase power parameters, as Figure 5-7、5-8、5-9 shows； 3) voltage：display line voltage and phase voltage, as Figure 5-10 shows； 4) current：display three phase current, as Figure 5-11 shows； 5) power：display three phase active power and total active power, three reactive power and total reactive power, three apparent power and total apparent power, as 5-12 shows； 6) power factor：display three phase power factor and total power factor, as Figure 5-13 shows； 7) frequency：display power frequency as Figure 5-14 shows.
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Figure 5-7 A phase power interface
Figure 5-8 B phase power interface
Figure 5-9 C phase power interface
Figure 5-10 voltage interface
Figure 5-11 current interface
Figure 5-13 power factor interface 5.2.3
Figure 5-12 power interface
Figure 5-14 frequency interface
power menu operation under the main interface, click â&#x20AC;&#x153;energyâ&#x20AC;? entering energy display interface, as Figure 5-15 shows,
energy interface displays positive active power, positive reactive power, negative active power, negative reactive power.
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Figure 5-15 energy display interface 5.2.4
harmonic menu operation under the main interface, click “harmonic” menu entering harmonic display interface, as Figure
5-16 shows, including “ total harmonic”, ”harmonic bar graph”, ”harmonic digit”, ”voltage comparison”, ”current comparison”; switch to the corresponding display interface by clicking each sub-menu. Each interface display content is as following: 1)
total harmonic: display
total harmonic percentage of three phase voltage and three phase
current, as Figure 5-16 shows; 2) harmonic bar graph: click “harmonic bar graph” sub-menu
entering harmonic bar graph
display interface, including 2nd~31st harmonic bar graph of Ua、Ub、Uc、Ia、Ib、Ic, as Figure 5-17 shows; 3) harmonic digit: click “harmonic digit” sub-menu entering harmonic digit display interface, including 2nd~31st harmonic percentage of Ua、Ub、Uc、Ia、Ib、Ic, as Figure 5-18 shows; 4) voltage comparison: display 2nd~31st harmonic comparison of Ua（yellow）、Ub（green）、 Uc（red）, as Figure 5-19 shows; 5：current comparison: display2nd~31st harmonic comparison of Ia（yellow）、Ib（green）、Ic（red）, as Figure 5-20 shows.
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Figure 5-16 total harmonic display interface
Figure 5-17 harmonic bar graph display interface
Figure 5-18 harmonic digit display interface
Figure 5-19 voltage comparison display interface
Figure 5-20 current comparison display interface 5.2.5
power quality menu operation
under the main interface, click â&#x20AC;&#x153; power qualityâ&#x20AC;? menu entering power quality display interface, ad Figure 5-21 shows. The display content of power quality interface includes: degree of unbalance of voltage, degree of unbalance of current, voltage positive sequence, voltage negative sequence, voltage zero sequence, current positive sequence, current negative sequence, current zero sequence.
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Figure 5-21 power quality display interface 5.2.6
switch quantity menu operation
under the main interface, click “switch quantity” menu entering switch quantity display interface, as Figure 5-22 shows. The display content of switch quantity interface includes: the display of 4-way switch quantity input and 4-way switch input output state information. Press displaying the detailed information of switch quantity output, as Figure 5-23 shows. Press returning switch quantity display interface.
Figure 5-22 switch quantity display interface Figure 5-23 display interface of switch quantity output details 5.2.7
analog quantity menu operation under the main interface, click “analog quantity” menu entering analog quantity display interface,
as Figure 5-24 shows. The display content of analog quantity interface includes: two-way transmitting serial number, transmitting object, transmitting specification, current output analog quantity percentage and value.
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Figure 5-24 analog quantity display interface 5.2.8
waveform event menu operation under the main interface, click “waveform event” menu entering waveform display interface,
as
Figure 5-25 shows, includes “voltage waveform”, “current waveform”, “load curve”, “fault waveform recorder”, “SOE event”, “vector Figure”; switch to the corresponding display interface by clicking each sub-menu, click “return”, can return to the main interface display. The display content of each interface is as following: 1) voltage waveform: click “voltage waveform” menu, as Figure 5-25 shows, the interface displays three phase voltage waveform; on the mode of manual waveform recorder, as Figure 5-26 shows, click
to start waveform recorder, recorded waveform can be viewed
through “fault waveform”； 2) current waveform: click “current waveform” menu, as Figure 5-27 shows, the interface displays three phase current waveform; on the mode of manual waveform recorder, as Figure 5-28 shows, click
to start waveform recorder, recorded waveform can be viewed
through “fault waveform”; 3) load curve: click “load curve” menu, as Figure 5-29 shows, the interface displays the total active power and total reactive power of the current day at various time points according to the sampling time interval, the sampling time interval can be set in the system settings. There are five buttons under the main display interface, from left to right is : last month（<<-），the day before（<-），amplification（+），the next day（->），the next month（->>）；after clicking amplification（+）button, will add left-shift button （<）and right-shift button （>）. Following is the instructions: 18
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<<- button：display last month load curve data record; <-
button：display the load curve data record of the day
before;
<
button：display the load curve data record of the first 4 hours of the current day;
+
button：enlarged display the load curve data record of the first 4 hours of the current day;
_
button：returned display the load curve data record of the current day within 24 hours;
>
button：display the load curve data record of the last 4 hours of the current day;
->
button：display the load curve data record of the next day;
->> button：display the load curve data record of the next month. 4) Fault waveform：click “fault waveform” menu, as Figure 5-30 shows, the list shows the record of 7 waveform events, the latest events are in the front, total can record 500 waveforms, can switch through “page turning” button under the main display area. “page turning” button includes “ page up（<<）”and “ page down（>>）”. The fault type includes manual, loss of pressure, voltage overload, current overload, upper limit of voltage harmonic distortion, upper limit of current harmonic distortion, upper limit of voltage unbalance, upper limit of current unbalance. Click the chosen fault event, will display waveform curve, as Figure 5-31 shows. There are 4 buttons under the main display area, from left to right is “left shift（<<）”、“right shift（>>）”、“voltage/current transfer（U/I）”and “return（
）”.
Following is the instructions for keystrokes: Page up（<<）button：display the record of the first 7 waveforms; Page down（>>）button：display the record of the last 7 waveforms; Left shift（<<）button：waveform display is shifting to the left; Right shift（>>）button：waveform display is shifting to the right; voltage/current transfer（U/I）button：three phase voltage waveform and three phase current waveform transfer; return（
）button：return to the fault waveform list.
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Figure 5-25 voltage waveform display interface Figure 5-26 display interface of voltage waveform recorder
Figure 5-27 current waveform display interface Figure 5-28 display interface of current waveform recorder
Figure 5-29 display interface of load curve Figure 5-30 display interface of fault waveform list
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Figure 5-31 display interface of fault waveform 5) SOE event: click “SOE event” menu，as Figure 5-32 shows，display switch quantity state and time, each way switch quantity can have 500 records, page turning through “<<” and “>>”； 4-way switch quantity switches through“<-”and“->”. 6) Vector Figure: click “vector Figure” menu, as Figure 5-33 shows, display the vector coordinate of three phase voltage and three phase current. The bold line represents voltage, the fine line represents current, yellow、green、red separately represents A、B、C phase.
Figure 5-32 SOE event display interface
Figure 5-33 display interface of vector Figure.
5.3 System settings There are 15 settings options for system settings, including specification settings, screensavers settings, factory settings, zero clearings, analog quantity, switch quantity, serial settings, data transfer, time correction, load settings, waveform recorder settings, screen regulation, password settings, language settings, brightness adjustment. One the main interface, click “system settings” menu, pop up password-input dialog box, it’s the soft keyboard under the dialog box, there are numeric keys”0～9”, symbolic key “.”，backspace key“<-”，as Figure 5-34. enter system settings interface after input the password, as Figure 5-36 shows. After the system management is set, it will pop up dialog box as Figure 5-35 by pressing “return” key, and it prompts if the settings is saved or not, save all the parameter settings by pressing “yes”, cancel the setting for this time by pressing “No”. Note : the factory password is assumed to be no password, users can enter “system management” menu by pressing “OK” without input any password.
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Figure 5-34 input password dialog box
Figure 5-35 save the display interface of the system
settings 5.3.1
Specification settings Click “specification settings” menu, as Figure 5-36 shows, enter specification settings interface,
including voltage specification、current specification、input network、voltage ratio and current ratio. Click the edit box of input network, pop up the dialog box as Figure 5-37 shows, the current wiring mode of the meter can be set, make sure the set wiring mode is the same as the actual wiring, otherwise the meter can not be working normally; Click the edit box of voltage ratio, pop up the dialog box as Figure 5-38 shows,1～9999 can be set; Click the edit box of current ratio, pop up the dialog box as Figure 5-39 shows,1～9999 can be set;
Figure 5-36 display interface of specification settings network
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Figure 5-37 settings interface of input
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Figure 5-38 settings interface of current ratio
Figure 5-39 settings interface of voltage ratio
For example： measuring 110kV/220 and 100A/5A electric circuit The specification of the meter is voltage specification setting “220V”, current specification is “5A”, voltage ratio is set to 110kV/220V=500，current ratio is set to 100A/5A=20。 Note: the voltage specification and current specification in the specification settings can not be set. 5.3.2
Screen saver settings Click “screen saver settings” menu, as Figure 5-40 shows, enter screen saver settings interface,
click the edit box of screen saver time, enter the dialog box of screen saver settings as Figure 5-41. The screen saver time can be set as NO or 1-60 minutes.
Figure 5-40 screen saver settings 5.3.3
Figure 5-41 setting interface of screen saver setting time
Factory settings
Click “factory settings” menu, as Figure 5-42 shows, enter factory settings interface, click “OK” button, enter the prompt dialog box of factory settings as Figure 5-43, click “OK”, the parameters will recover to the system parameters set before leaving factory, click “cancel” button, it will cancel this operation.
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Figure 5-42 factory settings
5.3.4
Figure 5-43 dialog box of factory settings
Zero clearing Click “zero clearing” menu, as Figure 5-44 shows, enter zero clearing settings interface, the main
display area displays the clearing time of the last electric energy, click edit box, pop up the dialog box as Figure 5-45, prompt if zero clearing is needed or not, click “OK” to make electric energy cleared, this operation is irreversible, which means the electric energy will be cleared, click “cancel”, cancel this operation. Electric energy clearing 4-quadrant energy is positive active power、positive reactive power、negative active power、negative reactive power.
Figure 5-44 zero clearing display interface 5.3.5
Figure 5-45 zero clearing prompt interface
Analog quantity Click “analog quantity” menu, as 5-46 shows，enter analog quantity settings interface, including
2-way transmitting output signal chosen. Click the edit box of the 1st way DA signal, pop up the dialog box as Figure 5-47, the parameters can be edited including parameter type、transmitting type、 upper and lower limit. When the input network is set to 3 phase 4 wire, there are 26 transmitting electrical parameters; when the input network is set to 3 phase 3 wire, there are 9 transmitting
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electrical parameters, see table 5.3.3.1. The setting of the 2nd way DA signal, ditto.
Figure 5-46 analog quantity display interface
Figure 5-47 analog quantity setting interface
Table 5.3.3.1 the table of analog quantity transmitting output No.
Transmitting object
range
0
No output
1
Uab（line voltage）
3 USCL * Urat
3P4
2
Ubc（line voltage）
3 USCL * Urat
3P4
3
Uca（line voltage）
3 USCL * Urat
3P4
4 5 6 7 8 9 10 11 12 13
Ua （A phase voltage） Ub （B phase voltage） Uc （C phase voltage） Frq（frequency） Ia （A phase current） Ib （B phase current） Ic （C phase current） Pa （A phase active power） Pb （B phase active power） Pc （C phase active power） Pt （conjunction total active power） Qa （A phase reactive power） Qb （B phase reactive power）
14 15 16
/
Input netwrok 3P4/3P3
USCL * Urat
20Hz（45Hz～65Hz） ISCL * Irat ISCL * Irat ISCL * Irat USCL * Urat* ISCL * Irat USCL * Urat* ISCL * Irat USCL * Urat* ISCL * Irat
3P4/3P3 3P4 3P4/3P3 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4 3P4 3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
USCL * Urat USCL * Urat
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17 18 19 20 21 22 23 24 25 26
Qc （C phase reactive power） Qt （conjunction total reactive power） Sa （A phase apparent power） Sb （B phase apparent power） Sc （C phase apparent power） St （conjunction total apparent power） Pfa（A phase power factor） Pfb（B phase power factor） Pfc（C phase power factor） Pft（conjunction power factor）
USCL * Urat* ISCL * Irat
3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
1.0(0.5C～0.5L) 1.0(0.5C～0.5L) 1.0(0.5C～0.5L)
3P4 3P4 3P4
1.0(0.5C～0.5L)
3P4/3P3
Note ：USCL is voltage specification in table 5.3.3.1，ISCL is current specification，Urat is voltage ratio，Irat is current ratio. For example：measuring 110kV/220 和 100A/5A electric circuit Channel 1 transmitting A phase current Ia，transmitting type is 4mA-20mA，upper limit is 100.0%，lower limit is 0.0%，calculation of transmitting output value: Transmitting upper limit value is：100A*100.0%=100A; Transmitting lower limit value is：100A*0.0%=0A; When Ia>=100A, full range of transmitting output is 20mA； When Ia=0Ahour，the lowest value of transmitting output range is 4mA； When 0<Ia<5.0A，the corresponding output transmitting value is （Ia*100.0%-100A*0.0%）/（（100.0%-0.0%）*110kV）*（20mA-4mA）+4mA；line out。 5.3.6
Switch quantity Click “switch quantity” menu, as Figure 5-48 shows, enter switch quantity output setting
interface, including 4-way alarm output choose. Click the edit box of the 1st way switch quantity, pop up the dialog box as Figure 5-49, the parameters can be edited including upper limit、lower limit and parameters. When the upper limit is set to be alarm value and the measured value is higher than the setting value, the corresponding channel alarm appears, when the measured value recovers to less 26
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than the setting value, the corresponding channel alarm recovers; when setting lower alarm value and the measured value is lower than the setting value, the corresponding channel alarm appears, when the measured value recovers to more than the setting value, the corresponding channel alarm recovers. When the input network is set to be 3 phase 4 wire, there are 36 alarm items can be set. When the input network is set to be 3 phase 3 wire, there are 13 alarm items can be set, see table 5.3.4.1. The setting of 2nd、3rd and 4th way switch quantity, ditto.
Figure 5-48 switch quantity display interface
Figure 5-49 switch quantity setting interface
Table 5.3.4.1 table of switch quantity alarm output parameters No.
Alarm object
range /
Input network 3P4/3P3
0
No output
1
Uab （line voltage）
3 USCL * Urat
3P4
2
Ubc （line voltage）
3 USCL * Urat
3P4
3
Uca （line voltage）
3 USCL * Urat
3P4
4 5 6 7 8 9 10 11 12 13
Ua Ub Uc U Frq Ia Ib Ic I Pa
（A phase voltage） （B phase voltage） （C phase voltage） （any phase voltage） （frequency） （A phase current） （B phase current） （C phase current） （any phase current） （A phase active power）
27
USCL * Urat USCL * Urat USCL * Urat USCL * Urat
20Hz（45Hz～65Hz） ISCL * Irat ISCL * Irat ISCL * Irat ISCL * Irat USCL * Urat* ISCL * Irat
3P4/3P3 3P4 3P4/3P3 3P4 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4 3P4
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14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Pb （B phase active power） Pc （C phase active power） Pt （conjunction total active power） Qa （A phase reactive power） Qb （B phase reactive power） Qc （C phase reactive power） Qt （conjunction total reactive power） Sa （A phase apparent power） Sb （B phase apparent power） Sc （C phase apparent power） St （conjunction total apparent power） Pfa （A phase power factor） Pfb （B phase power factor） Pfc （C phase power factor） Pft （conjunction power factor） THDua（A phase voltage total harmonic） THDub（B phase voltage total harmonic） THDuc（C phase voltage total harmonic） THDia（A phase current total harmonic） THDib（B phase current total harmonic） THDic（C phase current total harmonic） Yv （degree of unbalance of the voltage） Yi （degree of unbalance of the voltage）
28
USCL * Urat* ISCL * Irat USCL * Urat* ISCL * Irat
3P4 3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
USCL * Urat* ISCL * Irat
3P4
3*USCL * Urat* ISCL * Irat
3P4/3P3
1.0(0.5C～0.5L) 1.0(0.5C～0.5L) 1.0(0.5C～0.5L)
3P4 3P4 3P4
1.0(0.5C～0.5L)
3P4/3P3
100%
3P4/3P3
100% 100% 100% 100% 100% 100% 100%
3P4 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4 3P4
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note ： USCL is the voltage specification in table 5.3.4.1, ISCL is current specification，Urat is voltage ratio，Irat is current ratio. For example：measuring 110kV/220 和 100A/5A electric circuit Channel 1 A phase voltage in monitoring circuit, if the voltage is higher than 110kV or lower than 11kV，then channel 1 alarms； Alarm object of channel 1 is chosen as Ua，upper limit 100.0%，lower limit 10.0%，calculation of alarm value settings: Upper-limit voltage alarm value: A phase voltage/voltage ratio =110kV*100.0%=110kV; Lower-limit voltage alarm value: A phase voltage/voltage ratio =110kV*10.0%=11kV; 5.3.7
Serial settings Click “serial settings” menu, as Figure 5-50 shows, enter serial setting interface. Click the edit
box of the main display area, pop up the dialog box as Figure 5-51, the baud rate can be set to 1200、 2400、4800、9600 和 19200，check bit（None）、stop bit（2 bits） and data bit（8 bits）can not be changed, the local address can be set to 1～247.
Figure 5-50 serial setting display interface 5.3.8
Figure 5-51 serial parameter setting interface
Time correction
Click “ time correction” menu, as Figure 5-22 shows, enter system time modifying interface。 Click “current date” edit box, pop up the dialog box as Figure 5-53, can modify the date; Click “current date” edit box, pop up the dialog box as Figure 5-54, can modify the time.
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Figure 5-52 tune correction display interface Figure 5-53 date modifying dialog box
Figure 5-54 dialog box of time correction 5.3.9
Load settings Click “load settings” menu, as Figure 5-55 shows, click the edit box of the sampling time interval,
pop up the dialog box as Figure 5-56 shows, can modify the sampling time interval, the interval range can set to be 10min～60min. when the sampling time interval is modified, the load data of the day will be cleared; when the time correction is out of the time range of the day, all the record of load curve will be emptied.
Figure 5-55 load setting display interface 5.3.10
Figure 5-56 dialog box of load settings
Waveform recorder settings
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Click “waveform recorder settings” menu, as Figure 5-57 shows, enter the waveform recorder setting interface, click the dialog box of the main display area, pop up the dialog box as Figure 5-58 and Figure 5-59 shows, including manual, lower limit of no-voltage、upper limit of current overload、 upper limit of voltage harmonic distortion、upper limit of degree of unbalance of voltage and upper limit of degree of unbalance of current. Manual waveform recorder is carried out by choosing Manual, it will display recorder button on the display interface of the voltage waveform and current waveform; The other 7 types of auto recorder, can set the range percentage, higher or lower than the value, the system starts recording (on the main interface, click “waveform event”->“fault waveform”）.
Figure 5-57display interface of waveform recorder settings Figure 5-58 dialog box 1 of waveform recorder settings
Figure 5-59 dialog box 2 of waveform recorder settings
5.3.11
Screen alignment
Click “screen alignment” menu, as Figure 5-60 shows, enter the screen alignment interface, click “recalibrate” key, pop up the dialog box as Figure 5-61, press “YES” to calibrate (as Figure 5-61
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shows), press “NO” to exit calibration, while calibrating, just follow the presentation on the screen.
Figure 5-60 screen alignment display interface
Figure 5-61 dialog box of screen alignment
Figure 5-62 operation interface of calibrated screen 5.3.12
Password settings
Click “password settings” menu, as Figure 5-63 shows, enter the password setting interface, pop up the dialog box as Figure 5-54, after the new password is set, press “OK” key to save settings.
Figure 5-63 display interface of password settings 5.3.13
Figure 5-64 dialog box of password settings
Brightness adjustment
Click “brightness adjustment” menu, as Figure 5-63 shows, as Figure 5-65 shows,enter the brightness adjustment interface, click “-“ and “+” keys in the main display area, it can adjust the
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brightness of the display screen.
Figure 5-69 display interface of brightness adjustment 6、 Communication function 6.1
instructions of functions the meter provides serial asynchronous half-duplex RS-485 communication, adopts
ModBus-RTU communication mode. The max. number of the meters can be connected in one communication line at the same time is 128pcs, ach meter can be set communication address, communicating junction should be adopted shielded twisted pairs with copper wire mesh, the diameter of the line should be no less than 0.5mm2. keep the communication cable far from the high voltage cables and other strong magnetic field environment, the max. transmission distance is 1200m, the typical network connection method is as Figure 6-1, the users can choose the other suitable wiring method according to the detailed condition.
图 6-1 通讯连接示意图 ModBus protocol in one communication cable adopts host-slave response method as the communicating junction method. At the beginning, the signal of the host computer addresses to one terminal device with only one address(slave computer), then the answer signal sent from the terminal device is transferred to the host computer on the opposite direction. It is: the signal in one single communication cable transfers all the communication data flow along the opposite two directions(semiduplex working mode). 33
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ModBus protocol is only allowed to be communicated between the host computer and the terminal device, data exchange between single terminal devices are not allowed, so each terminal device will not occupy the communication circuits while initialization, but only used for respond the polling signals arrivals at the computer. 6.2
Instructions of communication parameters The meter provides standard RS-485 communication interface and ModBus_RTU communication
protocol(see appendix â&#x2026; )ďź&#x152;the parameter information which communication can read or modify is as following table: Parameter address
Parameter code
Instructions of parameters
Word length
Data type
R/W property
remark
Keyboard parameters 0000H
Urat
Voltage ratio(note
1)
2
Uint(note 2)
R/W
3P4/3P3
0001H
Irat
Current ratio(note
1)
2
Uint(note 2)
R/W
3P4/3P3
0002H
Net
Input signal type
2
Uint(note 2)
R/W
3P4/3P3
0003H
Addr
Communication address
2
Uint(note 2)
R/W
3P4/3P3
0004H
Baud
Communication baud rate
2
Uint(note 2)
R/W
3P4/3P3
R/W
3P4/3P3
st
Send1Target
1 way transmitting output object
2
0006H
Send1Type
1st way transmitting output specification
2
0007H
Send1UpperLimit
upper limit value of the 1st way transmitting output
2
0008H
Send1UpperLimit
Lower limit value of the 1st way transmitting output
2
0009H
Send2Target
2nd way transmitting output object
2
000AH
Send2Type
2nd way transmitting output specification
2
000BH
Send2lowerLimit
upper limit value of the 2nd way transmitting output
2
000CH
Send2lowerLimit
Lower limit value of the 2nd way transmitting output
2
Dout1
switching output state 1,remote control can be written
Dout2
switching output state 2,remote control can be written
0005H
000DH
000EH
34
Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2)
R/W R/W R/W R/W R/W R/W R/W
Uint(note 2) 2
3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3
R/W Uint(note 2)
2
3P4/3P3
3P4/3P3 R/W
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Dout3
switching output state 3,remote control can be written
0010H
Dout4
switching output state 4,remote control can be written
2
0011H
Dout1Target
1st way switching output object
2
0012H
Dout1UpperLimit
upper limit value of the 1st way switching alarm
2
0013H
Dout1LowerLimit
Lower limit value of the 1st way switching alarm
2
0014H
Dout2Target
2nd way switching output object
2
0015H
Dout2UpperLimit
upper limit value of the 2nd way switching alarm
2
0016H
Dout2LowerLimit
Lower limit value of the 2nd way switching alarm
2
0017H
Dout3Target
3rd way switching output object
2
0018H
Dout3UpperLimit
Upper limit value of the 3rd way switching alarm
2
0019H
Dout3LowerLimit
Lower limit value of the 3rd way switching alarm
2
001AH
Dout4Target
4th way switching output object
2
001BH
Dout4UpperLimit
Upper limit value of the 4th way switching alarm
2
001CH
Dout4LowerLimit
Lower limit value of the 4th way switching alarm
2
001DH
SampleTime
Sampling time interval
2
Uint(note 2)
R/W
3P4/3P3
001EH
RecordMode
Waveform recorder method
2
Uint(note 2)
R/W
3P4/3P3
001FH
LostUxRecordEnable
Start of No-voltage recorder
2
Uint(note 2)
R/W
3P4/3P3
2
Uint(note 2)
R/W
3P4/3P3
LostUxRecordLimit
Lower limit value of no-voltage recorder
2
Uint(note 2)
R/W
3P4/3P3
OverloadUxRecordEnable
Start of voltage overload recorder
2
Uint(note 2)
R/W
3P4/3P3
OverloadUxRecordLimit
Upper limit value of voltage overload recorder
2
Uint(note 2)
R/W
3P4/3P3
OverloadIxRecordEnable
Start of current overload recorder
OverloadIxRecordLimit
Upper limit value of current
2
Uint(note 2)
R/W
3P4/3P3
000FH
0020H 0021H 0022H 0023H 0024H
35
Uint(note 2) 2
3P4/3P3 R/W
Uint(note 2)
3P4/3P3 R/W
Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2) Uint(note 2)
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3 3P4/3P3
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overload recorder 0025H
2
Uint(note 2)
R/W
3P4/3P3
THDUxRecordEnable
Start of voltage harmonic distortion recorder
2
Uint(note 2)
R/W
3P4/3P3
THDUxRecordLimit
Upper limit value of voltage harmonic distortion recorder
2
Uint(note 2)
R/W
3P4/3P3
THDIxRecordEnable
Start of current harmonic distortion recorder
2
Uint(note 2)
R/W
3P4/3P3
THDIxRecordLimit
Upper limit value of current harmonic distortion recorder
2
Uint(note 2)
R/W
3P4/3P3
UzRecordEnable
Start of voltage unbalance recorder
2
Uint(note 2)
R/W
3P4/3P3
UzRecordLimit
Upper limit value of voltage unbalance recorder
2
Uint(note 2)
R/W
3P4/3P3
IzRecordEnable
Start of current unbalance recorder
2
Uint(note 2)
R/W
3P4/3P3
IzRecordLimit
Upper limit value of current unbalance recorder
3P4/3P3
0026H
0027H
0028H
0029H 002AH 002BH 002CH
Running parameters 002DH
Wrst
Energy clearing (note 5)
2
Uint(note 2)
R
last time energy clearing time：year
2
Uint(note 2)
R
WrstYear
2
Uint(note 2)
R
WrstMonth
last time energy clearing time：month
2
Uint(note 2)
R
WrstDay
last time energy clearing time：day
2
Uint(note 2)
R
WrstHour
last time energy clearing time：hour
2
Uint(note 2)
R
WrstMinute
last time energy clearing time：minute
2
Uint(note 2)
R
WrstSecond
last time energy clearing time：second
0034H
Year
real-time date：year
2
Uint(note 2)
R
3P4/3P3
0035H
Month
real-time date：month
2
Uint(note 2)
R
3P4/3P3
0036H
Day
real-time date：day
2
Uint(note 2)
R
3P4/3P3
0037H
Hour
real-time time：hour
2
Uint(note 2)
R
3P4/3P3
0038H
Minute
real-time time：minute
2
Uint(note 2)
R
3P4/3P3
0039H
Second
real-time time：second
2
Uint(note 2)
R
3P4/3P3
003AH
Send1
transmitting output1
2
Uint(note 2)
R
3P4/3P3
003BH
Send2
transmitting output2
2
Uint(note 2)
R
3P4/3P3
002EH 002FH 0030H 0031H 0032H 0033H
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003CH
Din1
1st way switching input state
2
Uint(note 2)
R
3P4/3P3
003DH
Din2
2nd way switching input state
2
Uint(note 2)
R
3P4/3P3
003EH
Din3
3rd way switching input state
2
Uint(note 2)
R
3P4/3P3
003FH
Din4
4th way switching input state
2
Uint(note 2)
R
3P4/3P3
Measurement data 0040H -005DH
Hua
A phase voltage 2nd-31st harmonic
2
int(note 3)
R
005EH -007BH
Hub
B phase voltage 2nd-31st harmonic
2
Int(note 3)
R
007CH -0099H
Huc
C phase voltage 2nd-31st harmonic
2
int(note 3)
R
009AH -00B7H
Hia
A phase current 2nd-31st harmonic
2
Int(note 3)
R
00B8H -00D5H
Hib
B phase current 2nd-31st harmonic
2
int(note 3)
R
00D6H -00F3H
Hic
C phase current 2nd-31st harmonic
2
Int(note 3)
R
00F4H
THDua
A phase voltage total harmonic distortion rate
2
int(note 3)
R
00F5H
THDub
B phase voltage total harmonic distortion rate
2
Int(note 3)
R
00F6H
THDuc
C phase voltage total harmonic distortion rate
2
int(note 3)
R
00F7H
THDia
A phase current total harmonic distortion rate
2
Int(note 3)
R
00F8H
THDib
B phase current total harmonic distortion rate
2
int(note 3)
R
00F9H
THDic
C phase current total harmonic distortion rate
2
Int(note 3)
R
00FAH
Yv
Degree of unbalance of voltage
2
int(note 3)
R
00FBH
Yi
Degree of unbalance of current
2
Int(note 3)
R
00FCH
Up
voltage positive sequence component
2
int(note 3)
R
00FDH
Un
voltage negative sequence component
2
Int(note 3)
R
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3P4/3P3 3P4 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4/3P3 3P4 3P4/3P3 3P4 3P4 3P4 3P4
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00FEH
Uz
voltage zero sequence component
2
00FFH
Ip
current positive sequence component
2
0100H
In
current negative sequence component
2
0101H
Iz
current zero sequence component
2
0102H
Frq
frequency
0104H
Ua
0106H
3P4
int(note 3)
R
Int(note 3)
R
int(note 3)
R
Int(note 3)
R
4
float(note 4)
R
3P4/3P3
A phase voltage
4
float(note 4)
R
3P4/3P3
Ub
B phase voltage
4
float(note 4)
R
3P4
0108H
Uc
C phase voltage
4
float(note 4)
R
3P4/3P3
010AH
Uab
A phase line voltage
4
float(note 4)
R
3P4
010CH
Ubc
B phase line voltage
4
float(note 4)
R
3P4
010EH
Uca
C phase line voltage
4
float(note 4)
R
3P4
0110H
Ia
A phase current
4
float(note 4)
R
3P4/3P3
0112H
Ib
B phase current
4
float(note 4)
R
3P4
0114H
Ic
C phase current
4
float(note 4)
R
3P4/3P3
0116H
Sa
A phase apparent power
4
float(note 4)
R
3P4
0118H
Sb
B phase apparent power
4
float(note 4)
R
3P4
011AH
Sc
C phase apparent power
4
float(note 4)
R
3P4
011CH
St
conjunction phase apparent power
4
float(note 4)
011EH
Pa
A phase active power
4
float(note 4)
R
3P4
0120H
Pb
B phase active power
4
float(note 4)
R
3P4
0122H
Pc
C phase active power
4
float(note 4)
R
3P4
0124H
Pt
Conjunction active power
4
float(note 4)
R
3P4/3P3
0126H
Qa
A phase reactive power
4
float(note 4)
R
3P4
0128H
Qb
B phase reactive power
4
float(note 4)
R
3P4
012AH
Qc
C phase reactive power
4
float(note 4)
R
3P4
012CH
Qt
ĺ?&#x2C6; phase reactive power
4
float(note 4)
R
3P4/3P3
012EH
Pfa
A phase power factor
4
float(note 4)
R
3P4
0130H
Pfb
B phase power factor
4
float(note 4)
R
3P4
0132H
Pfc
C phase power factor
4
float(note 4)
R
3P4
0134H
Pft
Conjunction power factor
4
float(note 4)
R
3P4/3P3
0136H
Pha
A phase
4
float(note 4)
R
3P4/3P3
0138H
Phb
B phase
4
float(note 4)
R
3P4/3P3
013AH
Phc
C phase
4
float(note 4)
R
3P4/3P3
013CH
P_wh
positive active energy
4
float(note 4)
R
3P4/3P3
013EH
P_varh
positive reactive energy
4
float(note 4)
R
3P4/3P3
0140H
N_wh
negative active energy
4
float(note 4)
R
3P4/3P3
38
R
3P4 3P4 3P4
3P4/3P3
PD7777-8H series multifunctional digital panel meters
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0142H
N_varh
Negative reactive energy
4
float(note 4)
R
3P4/3P3
Note ：1 the multiply of the voltage ratio and current ratio should be no more than 100000， otherwise it will cause some data displaying overflow; 2 Uint represents 2-bit unsigned integer; 3 int represents 2-bit signed integer; 4 float represents 4-bit floating type.代表 4 字节的浮点型； 5 if the value read is 0, total clearing by writing in 0x5AA5,unvalid to write in the other values. 6.3
Power data conversion All the power data read by the communication is the secondary value, the ratio is excluded, the
detailed conversion method see the following table, RX is the communication parameter value. Parameter name
Conversion formula
Unit
Parameter items
voltage
U = RX×Urat
V
Ua,Ub,Uc,Uab,Ubc,Uca
current
I = RX×Irat
A
Ia,Ib,Ic
Active power
P = RX×Urat×Irat
W
Pa,Pb,Pc,Pt
Reactive power
Q = RX×Urat×Irat
var
Qa,Qb,Qc,Qt
Apparent power
S = RX×Urat×Irat
VA
Sa,Sb,Sc,St
energy
W = RX×Urat×Irat
Wh/varh
P_wh,N_wh,P_varh,N_varh
7、 Precaution 7.1
The meter should be reheated 15min for accurate measurement after power on.
7.2
The meter should not be shocked, impacted and have violent vibration, the operating environment should conform to the technical requirements.
7.3
The digital panel meter is not a measuring instrument, the energy measurement function is just for reference and comparison for the users, not for the metering bias.
8、 Mantenance and repair The meter should have a metering test every year, if the error of the meter is out of the range,
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please send the meter back to the factory as the faulty meter. If users find any quality problem within 18 months from the date of dispatch, our company is responsible for repairing or replacing for free, on the condition that users operate according to the manual’s provision with correct operation and the factory’s seal is complete. 9、 packge、transportation and storage 9.1 package the packge of the meter should use the material which can meet environmental requirements, the package is required to conform to the provision of GB/T 15464-1995. 9.2
Transportation and storage The transportation and storage of the meter should conform to the provision of JB/T 9329-1999. the storage environment temperature is -25℃～50℃，relative humidity should no more than 85%, and the harmful substance content in the air should be less than what can cuase the corrosion of the meter.
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10、
Appendix Ⅰ communication protocol
1 communication format Transmission of information is adopted asynchronous mode and byte as the unit. The communication date transmitted between the host and slave computer is the format of 11-digit characters, including 1 start bit(0), 8 data bits and 2 stop bits(1). Format of information frame： Start
Address code
Function code
Data field
CRC check code
End
Pause time for more than 3.5 characters
1 byte
1 byte
N bytes
2 bytes
Pause time for more than 3.5 characters
2 Communication information transmitting procedure When communication command is transmitted from the host computer to the slave computer, the slave computer which matches the address code sent by the host computer receives communication command. If CRC checks without any fault, then corresponding operation is carried out, after that the implement result (date) is returned to the host computer. The returned information contains address code, function code, implement date and CRC check code. No information will be returned upon erroneous CRC verification code. 2.1 Address code Address code is the first byte of each communication frame, the range is 1~247. Each slave must have an exclusive address code in the bus, only the slave computer which matches the address code sent by the host computer can respond returned information. When the slave computer returns back information, returned data all begins with respective address code. The address code sent from the host computer indicates the slave address, the returned address code of the slave computer indicates the slave address, the corresponding address code indicates the source of the information. 2.2 Function code It’s the second byte of each communication frame. It’s sent by the host and tells the slave computer what actions should be carried out through function code. The slave will respond, it indicates the slave have responded the host and carry out relative operations when the returned function code of the slave is the same as the function code sent by the host. The meter supports the following two function codes: Function code
Definition
Operation
03H
Read register
Red the data of one or several registers
10H
Write multi-port register
Write n 16-digit binary data into n continuous registers
2.3 Data field The data field is different with different function codes. These data can be numerical values, reference addresses and so on. For different slave computers, both the address and data information are different, and the communication information table should be provided. The host utilizes communicate command (function code 03H and 10H) to read and modify the data registers of the slave freely. But the data length which is read or write at one time should not be out of the effective range of the data register’s address. 3 Function code 3.1 Function code 03H：Read register For example: The host intends to read slave address 01H, 2 register data whose start register address is 0CH, the host 41
PD7777-8H series multifunctional digital panel meters
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will send: Host to send
Sent data
Address code
01H
Function code
03H
Start register address The number of registers CRC check code
High byte
00H
Low byte
0CH
High byte
00H
Low byte
02H
Low byte
04H
High byte
08H
If the data of the slave register 0CH, 0DH is 0000H, 1388H, the slave will return: Slave to return
Returned information
Address code
01H
Function code
03H
The number of bytes
04H
Data of register 0CH Data of register 0DH CRC check code
High byte
00H
Low byte
00H
High byte
13H
Low byte
88H
Low byte
F7H
High byte
65H
3.2 Function code 10H：Write multi-port register For example：The host intends to keep the data 0002H、1388H、000AH into 01H slave address，3 registers whose start register address is 00H, the host will send: Host to send
Sent information
Address code
01H
Function code
10H
Start register address The number of registers
high byte
00H
low byte
00H
high byte
00H
low byte
03H
Number of written bytes Data of 00H to be written Data of 01H to be written Data of 02H to be written CRC check code
06H
high byte
00H
low byte
02H
high byte
13H
low byte
88H
high byte
00H
low byte
0AH
low byte
9BH
high byte
E9H
The slave will return：
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Slave to return
Returned information
Address code
01H
Function code
10H
Start register address The number of registers CRC check code
high byte
00H
low byte
00H
high byte
00H
low byte
03H
low byte
80H
high byte
08H
4 16-digit CRC check code The host and slave computer can be judged by the check code to see if the received information is correct or not. The interruption by electronic noises or other factors may cause errors during information transmission. The check code can check the communication information of the host or slave is correct or not. 16-digit CRC check code is calculated by the host, it’s located at the end of the transmit information frame. The slave recalculates the CRC of the received information and compares if the calculated CRC goes in line with the received CRC, if not, there is error. Only 8 data bits are used during CRC calculation, both the start bits and the stop bits are not involved in the calculation. The calculation method of CRC check code is as follows： 1) Pre-arrange one 16-digit register as a hexadecimal FFFF ( i.e. fully 1), the register is called CRC register; 2) Make the first 8-digit binary data ( the first byte of the communication information frame) with the lower 8 digits of the 16-digit CRC register by XOR calculation, the result is placed in CRC register; 3) Shift the content of CRC register rightward by one digit (towards the lower digit) and fill in the highest digit with 0, check the shift-out digit after rightward shifting; 4) If the shift-out digit is 0: repeat step 3) (shift rightward one digit again); If the shift-out digit is 1: make CRC register with multinomial A001 by XOR calculation 5) Repeat step 3) and 4) until shift rightward for 8 times, then all the 8 digits are processed; 6) Repeat step 2) and 5), process the next byte of the communication information frame; 7) After calculating all the bytes of the communication information frame (exclude CRC check code) according to the above steps, the content of the CRC register to be get is: 16-digit CRC check code. 5 Error handling When the meter detects other errors except the error of CRC check code, the information will be returned to the host, the highest digit of the function code is 1, i.e. the function code returned to the host from the slave is adding 128 base on the function code sent from the host. The error returned from the slave is as follows: Address code
Function code （the highest digit is 1）
Error code
low byte of CRC check code
high byte of CRC check code
1 byte
1 byte
1 byte
1 byte
1 byte
Error code is as follows： 01H 02H 03H
Illegal function code
the meter does not support the received function code
Illegal register address
The received register address exceeds the register address range of the meter
Illegal data value
The received data exceeds the data range of the corresponding address
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Dear Clients： Please help me to do one thing: when the product is reaching the end of its useable life, in order to protect our environment, please do well in recovery of the products or the component materials. Please also deal with the materials which can not be recycled. Thank you very much for your help and support!
Manufacturer：Zhejiang CHINT Instrument&Meter Co.,Ltd. Address：Bridge Industrial Zone,325603 Wenzhou,Zhejiang,China P.C：325603 Tel.：86-577-62877777 FAX：86-577-62891577 Technical Support Hotline：0577-62877777-9561 Service Hotline：0577-62919999
8008577777
Counterfeit Complaints Hotline：0577-62789987 http：//www.chint.com E-mail：ztyb@chint.com
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