VARIABLE FREQUENCY
DRIVES
Solutions for HVAC Fan, Pump & Cooling Tower Applications
We respond.
And that’s got people talking High Reliability Simple Installation
“Once we’re up and running, we never have to go back to the job site. The 5 year warranty in fan and pump backs it up.”
“Auto-tuning takes all the guesswork out of set up. We don’t need factory commissioning agents any more. “
Fast Shipment
Packaged Solutions “We needed a VFD with bypass the next day. Cerus turned it around.”
81% of our customers enthusiastically recommend Cerus to a friend.
“They built it to meet our specs--working with their in-house engineering gave us the edge.”
SAFETY FIRST!
As with all electrical equipment, only qualified, expert personnel should perform maintenance and installation. Comply with all applicable local and national codes and laws that regulate the installation and operation of equipment and read manuals thoroughly. Use only installation manuals and not this sales brochure for installation procedures. It is up to the installer to determine product suitability for a given application. © 2011 Cerus Industrial, Inc. Product improvement is a continual process. Pricing and specifications subject to change without notice. Marketing materials should not be relied upon for technical specification. Cerus, Mira, Orion, Titan and associated logos are trademarks of Cerus Industrial, Inc. All sales subject to Cerus Terms and Conditions.
P Series
7.5–40HP (200~230VAC), 7.5–400HP (380~480VAC), 3Ø Dual Rated for Constant & Variable Torque Sensorless & VF Control, Integrated PID Control Horsepower Range
1~400HP (200~230V only up to 40 HP)
Voltage Ratings
Input
3Ø, 200~230V (+10%, -15%) 3Ø, 380~480V (+10%, -15%)
Output
3Ø, 200~230V 3Ø, 380~480V
Frequency Ranges
pg 6
Input
50-60Hz
Output
0-120Hz
GS Series 0.5–5HP 200~230VAC, 380~480VAC, 3Ø Dual Rated for Constant & Variable Torque Sensorless & VF Control, Integrated PID Control Horsepower Range
1/4~5HP
Voltage Ratings
Input
3Ø, 200~230V (+10%, -15%) 3Ø, 380~480V (+10%, -15%)
Output
3Ø, 200~230V 3Ø, 380~480V
Frequency Ranges
pg 16
Input
50-60Hz
Output
0-400Hz
Cooling Tower Controls pg 22 Single point Connection Cooling Towers Stand alone or Slave Operation Options Scalable to meet any application Horsepower Range
1~400HP
Voltage Ratings
Input
3Ø, 200~230V (+10%, -15%) 3Ø, 380~480V (+10%, -15%)
Output
3Ø, 200~230V 3Ø, 380~480V
Frequency Ranges
Input
50-60Hz
Output
0-120Hz
Reactors, Filters, and Sensors Optimized Line Reactors Drive Output Reactors & Filters Gage Pressure Sensors Differential Pressure Transducers
pg 34
P Series
ENERGY SAVINGS
Flying Start Protection
Automatic Energy Savings
Space Vector Control
800.962.3787 | FAX: 503.643.4925 | www.cerusind.com
ENERGY SAVINGS for Fans & Pumps. Backed by an Unprecedented 5-Year Warranty. Optimized for Fans & Pumps Everyone knows variable frequency drives (VFDs) can save you money by varying motor speed to match demand. But ramping up and down is just the beginning of energy savings with Cerus.
When you couple all of these protective features with rugged construction, it’s easy to see why we aren’t afraid to back our drives with a 5-year warranty in variable torque applications.
Our automatic energy saving Damper Control mode minimizes energy losses with varying loads Conventional by optimizing flux control inverter control for higher efficiency. In PID mode, sleep and wake up functions can deactivate Titan P-Series the inverter under low demand conditions and wake it up when demand rises for additional savings. It also extends the life of the motor and drive.
So easy to set up, you don’t have to pay for factory commissioning
And space vector modulation gives you a super clean sine wave—much better than a typical VF drive. And that translates to cooler running motors, less losses, and a better system.
Reliability Backed with a 5-Year Warranty Just because our drives are soft on energy, doesn’t mean they aren’t rugged. Check out our high torque ratings— they’re up to the task. And our VFDs are loaded with features that keep them online. They’re able to preheat windings in damp conditions to prevent costly motor and inverter damage. Since power is never perfect, we use the inertia of the load to regenerate power to keep the drive riding through sags. Starting into a spinning fan? No problem. Flying start protection matches the drive to the load for smooth, trip free starts.
Our parameters are straight forward. Keypads are intuitive. Fact is, once you’ve set one up, you’re hooked. Auto tuning takes all the guesswork out of commissioning for fans and pumps.
Engineered for HVAC applications Delivered on time to meet the demands of your project schedule True 3-contactor bypasses for critical applications. Or better, fully redundant duplex panels so that one drive picks up right where the other left off—keeping duct work intact and tenants comfortable. Or just keep it simple; we offer costeffective drive/disconnect packages as well. Line reactors, filtering, we do it all. Rainproof, air conditioned, water proof enclosures. We know what outdoor installations call for and we’ll deliver the goods competitively and quickly. Our cooling tower packages deliver reliability, ease of installation and energy savings. We incorporate all the functionality into a single, clean, rugged panel. The net result is a compact control that’s easy to install. Just one power source for reduced installation costs, easy operation, and a job well done.
VARIABLE FREQUENCY DRIVES
P-Series VFD
7.5–40HP (200~230VAC), 7.5–400HP (380~480VAC), 3Ø Dual Rated for Constant & Variable Torque Integrated PID Control
Space Vector control for efficiency and long motor life Cleaner sine wave as compared to typical V/Hz control. Motors run cooler and last longer
Advanced PID control (Pre-PID and Dual PID)
Maintain a constant control of pressure, flow or water level. This function includes Pre-PID, Sleep and Wake up and output inverse sub-functions Dual PID for external PID control or cascade PID control Multi-Motor
Multi-motor control function Control up to 4 motors
The 32-character backlit LCD screen displays the drive’s operational status and parameter settings. A very easy drive to set up.
Automatic energy savings mode Adaptive flux control for varying loads (e.g. damper loading)
Sleep and wake up function Increased energy savings by deactivating drive during low demand
Flying start protection Prevents trips, rough starts, and drive damage from regenerative power from heavy fan inertia rotation
Flux braking algorithm Reduces deceleration time for enhanced system efficiency
Pre-heater function Used to protect motor and inverter from damage when installed in damp location (e.g. green house).
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The P-Series’ clearly marked terminal inputs and outputs allow for easy wiring and setup.
VARIABLE FREQUENCY DRIVES
Automatic carrier frequency change Adjusts based on temperature for optimal operation
Selectable V/F, Sensorless vector control Ideal for any control requirement
Long-life condenser & simple framework Increased reliability
Energy Savings that makes an environmental difference with every building.
Built-in Modbus RTU communication Optional: Profibus-DP, LonWorks, BACnet, Modbus *
Perfect for fans, pumps and airhandlers.
Specifications Output ratings Input ratings
Operation
Voltage (V) Frequency (Hz) Voltage (V) Frequency (Hz) Input Power Factor Drive Efficiency Control method Frequency setting resolution Frequency setting accuracy V/F ratio Overload capacity Torque boost Multi-function input terminals Analog output
Three phase, 200~230V, Three phase, 380~480V 0~120Hz Three phase, 200~230V (-15%, +10%), Three phase, 380~480V (-15%, +10%) 50~60Hz (±5%) <.95 from no load to full load >96% V/F control, Sensorless vector control Digital reference: 0.01Hz (below 99Hz) & 0.1Hz (100Hz and over); Analog reference: 0.06Hz at 60Hz Digital: 0.01% of maximum output frequency; Analog: 0.1% of maximum output frequency Linear, Square, User V/F 1 minute at 120%, 10 seconds at 150% (with inverse characteristic proportional to time) Auto, Manual (0~15%) Total 8 inputs (programmable) 0~10V linear
LCD keypad, Terminals, ModBus-RTU communication Operator control 32-character Optional, ProfiBus-DP, DeviceNet, F-Net, BACnet, LonWorks Frequency setting Analog: 0~10V, 4~20mA, additional port for Sub-Board (0~10V); Digital: Keypad, Communication Start signal Forward, Reverse Multi-step operation Setting up to 17 speeds (using multi-function terminal) Input signal
Multi-step accel/decel time 0.1~6000 seconds. Maximum 8 pre-defined steps using multi-function terminals Operational DC braking, Frequency limit, Frequency jump, Second motor function, Slip compensation, Reverse rotation prevention, functions Auto restart, Inverter bypass, Auto-tuning, Dual PID control Emergency stop Auto operation Jog Fault reset
Output signal
Stops output from inverter Operates from internal sequence by setting multi-function terminal (5 way x 8 step) Jog operation Resets fault signal when protective function is active
detection, Overload alarm, Stall, Overvoltage, Undervoltage, Inverter overheat, Run, Stop, Constant speed, Operational status Frequency Speed search, Fault output, Inverter bypass, Auto-operation sequence Indicator Output frequency, Output current, Output voltage, DC voltage, Output torque (output voltage: 0~10V)
Protective functions
Operating environment
Undervoltage, Overcurrent, Inverter overheat, Motor overheat, I/O phase loss, Fuse open, Ground fault, Trip Overvoltage, External fault 1, 2, Option fault, Overload, Speed command loss, Hardware fault, Communication error, etc. Alarm Ambient temperature Storage temperature Humidity vibration Altitude Application site
Stall, Overload Temperature sensor fault -10°~40° C (50° C when derated 20%) or 14°~104° F (122° F when derated 20%) -20°~65° C or -4°~149.5° F Less than 90% Relative Humidity maximum (non-condensing) Below 5.9m²/sec (=0.6g) Below 1,000m (3,300ft): Derate VFD by 10% for every additional 1,000m Pollution degree 2. No corrosive gas, combustible gas, oil mist or dust
7
VARIABLE FREQUENCY DRIVES
P Series Wiring
*For general reference only, not field wiring. Consult installation instructions.
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VARIABLE FREQUENCY DRIVES
Options Part Number
Description
CI-RKPK-EXT2M-P/S
Remote Keypad Mounting Kit (2 Meter Cable)
CI-RKPK-EXT3M-P/S
Remote Keypad Mounting Kit (3 Meter Cable)
CI-RKPK-EXT5M-P/S
Remote Keypad Mounting Kit (5 Meter Cable)
CI-R4-COM
RS485 communication card
CI-BN-COM
BACnet communication card
CI-LW-COM
Lonworks communication card
CI-N2-COM
N2 communication card
3-Phase, 200~230V P-Series VFD Standard Duty (VT)
Heavy Duty (CT)
Part Number
3% Line Reactor*
2.5
CI-001-P2
KDRULA25LE01
HP
kW
FLA
HP
kW
FLA
1
1.9
5
0.4
0.95
2
3
8
0.75
1.9
5
CI-002-P2
KDRULA27LE01
3
4.6
12
1.5
3
8
CI-003-P2
KDRULA28LE01
5
6.1
16
2.2
4.6
12
CI-005-P2
KDRULB22LE01
7.5
5.5
24
5
3.7
17
CI-007-P2
KDRULB23LE01
10
7.5
32
7.5
5.5
23
CI-010-P2
KDRULD25LE01
15
11
46
10
7.5
33
CI-015-P2
KDRULD24LE01
20
15
60
15
11
44
CI-020-P2
KDRULD26LE01
25
18.5
74
20
15
54
CI-025-P2
KDRULC22LE01
30
22
88
25
18.5
68
CI-030-P2
KDRULF24LE01
40
30
115
30
22
84
CI-040-P2
KDRULF25LE01
Part Number
3% Line Reactor*
* Line Reactors housed in separate UL Type 1 Enclosure
3-Phase, 380~480V P-Series VFD Standard Duty (VT) HP
kW
FLA
1
2
2
3.2
3
4.8
Heavy Duty (CT) HP
kW
FLA
2.5
0.4
1
1.25
CI-001-P4
KDRULA8LE01
4
0.75
2
2.5
CI-002-P4
KDRULA1LE01
6
1.5
3.2
4
CI-003-P4
KDRULA2LE01
5
6.4
8
2.2
4.8
6
CI-005-P4
KDRULA3LE01
7.5
5.5
12
5
3.7
8
CI-007-P4
KDRULA4LE01
10
7.5
16
7.5
5.5
11
CI-010-P4
KDRULA5LE01
15
11
24
10
7.5
17
CI-015-P4
KDRULB2LE01
20
15
30
15
11
22
CI-020-P4
KDRULB1LE01
25
18.5
39
20
15
28
CI-025-P4
KDRULD1LE01
30
22
45
25
18.5
34
CI-030-P4
KDRULD2LE01
40
30
61
30
22
44
CI-040-P4
KDRULC1LE01
50
37
75
40
30
55
CI-050-P4
KDRULF2LE01
60
45
91
50
37
66
CI-060-P4
KDRULF4LE01
75
55
110
60
45
80
CI-075-P4
KDRULF3LE01
100
75
152
75
55
111
CI-100-P4
KDRULH3LE01
125
90
183
100
75
134
CI-125-P4
KDRULH2LE01
150
110
223
125
90
183
CI-150-P4
KDRULH1LE01
200
132
264
150
110
223
CI-200-P4
KDRULG3LE01
250
160
325
200
132
264
CI-250-P4
KDRULG1LE01
350
220
432
250
160
325
CI-350-P4
KDRULJ2LE01
400
280
547
300
220
432
CI-400-P4
KDRULJ1LE01
* Line Reactors housed in separate UL Type 1 Enclosure
9
VARIABLE FREQUENCY DRIVES
P-Series Bypass
7.5–40HP (200~230VAC), 7.5–400HP (380~480VAC), 3Ø Drive Isolation Option Indoor & Outdoor Enclosure Options
Standard bypass features Compact vertical design preserves wall space Includes standard MMS disconnect, Hand/Off/Auto & VFD/Off/Bypass switches Fireman’s override/smoke purge ready Choose from 2 or 3 contactor configurations UL 508C rating for maximum motor protection
Wide range of design options
Door mounted control options for manual speed pot, LED pilot lights and more Input circuit breaker Optional installed input or output drive reactors Integrated electronic overload for full phase protection in bypass mode Panel space heaters available for ambient temperatures below 32°F
Installs in minutes, lasts a lifetime.
Enclosure options for any environment A variety of NEMA rated enclosures to meet application requirements (Stainless, fiberglass, watertight, etc.) Dust tight Type 12 enclosures include ducting and ventilation for maximum cooling
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The easy to use 4-direction keypad makes settings a snap.
VARIABLE FREQUENCY DRIVES Options Description
VFD-RPL*
Run Pilot Light (Green Standard)
VFD-BPL*
Bypass Pilot Light (Amber Standard)
VFD-FLT*
Fault Pilot Light (Red Standard)
VFD-SPD
Door Mounted Speed Potentiometer
VFD-EOL
Solid-state Bypass Overload
VFD-LTA
Lightning Arrestor
CI-BN-COM
BACnet communication card
CI-LW-COM
Lonworks communication card
CI-N2-COM
N2 communication card
VFD-ABYP-R
Drive auto bypass with relay
VFD-KPD/4X
Door Mounted Keypad with Type 4X Cover
* Select 24V or 120V based on package control voltage. For UL Type 1 select 24V. For UL Type 3R & 12 select 120V.
3-Phase, 200~230V P-Series VFD Bypass Standard duty (VT)
Part Number
Bypass with Drive Isolation (3-Contactor Bypass Equivalent)
2-Contactor Bypass
Line Reactor Options
HP
kW Rating
UL Type 1
UL Type 3R
UL Type 1
UL Type 3R
Installed 3%
Installed 5%
1
1.9
CIE1-BYP001-P2/3
CIE3R-BYP001-P2/3
CIE1-BYP001-P2
CIE3R-BYP001-P2
VFD-KDRA25L
VFD-KDRA25H
2
3
CIE1-BYP002-P2/3
CIE3R-BYP002-P2/3
CIE1-BYP002-P2
CIE3R-BYP002-P2
VFD-KDRA27L
VFD-KDRA26H
3
4.6
CIE1-BYP003-P2/3
CIE3R-BYP003-P2/3
CIE1-BYP003-P2
CIE3R-BYP003-P2
VFD-KDRA28L
VFD-KDRA28H
5
6.1
CIE1-BYP005-P2/3
CIE3R-BYP005-P2/3
CIE1-BYP005-P2
CIE3R-BYP005-P2
VFD-KDRB22L
VFD-KDRB25H
7.5
5.5
CIE1-BYP007-P2/3
CIE3R-BYP007-P2/3
CIE1-BYP007-P2
CIE3R-BYP007-P2
VFD-KDRB23L
VFD-KDRB26H
10
7.5
CIE1-BYP010-P2/3
CIE3R-BYP010-P2/3
CIE1-BYP010-P2
CIE3R-BYP010-P2
VFD-KDRD25L
VFD-KDRD21H
15
11
CIE1-BYP015-P2/3
CIE3R-BYP015-P2/3
CIE1-BYP015-P2
CIE3R-BYP015-P2
VFD-KDRD24L
VFD-KDRD22H
20
15
CIE1-BYP020-P2/3
CIE3R-BYP020-P2/3
CIE1-BYP020-P2
CIE3R-BYP020-P2
VFD-KDRD26L
VFD-KDRC22H
25
18.5
CIE1-BYP025-P2/3
CIE3R-BYP025-P2/3
CIE1-BYP025-P2
CIE3R-BYP025-P2
VFD-KDRC22L
VFD-KDRF28H
30
22
CIE1-BYP030-P2/3
CIE3R-BYP030-P2/3
CIE1-BYP030-P2
CIE3R-BYP030-P2
VFD-KDRF24L
VFD-KDRF25H
40
30
CIE1-BYP040-P2/3
CIE3R-BYP040-P2/3
CIE1-BYP040-P2
CIE3R-BYP040-P2
VFD-KDRF25L
VFD-KDRF26H
3-Phase, 380~480V P-Series VFD Bypass Standard duty (VT)
Bypass with Drive Isolation (3-Contactor Bypass Equivalent)
2-Contactor Bypass
Line Reactor Options
HP
kW Rating
UL Type 1
UL Type 3R
UL Type 1
UL Type 3R
Installed 3%
Installed 5%
1
2
CIE1-BYP001-P4/3
CIE3R-BYP001-P4/3
CIE1-BYP001-P4
CIE3R-BYP001-P4
VFD-KDRA8L
VFD-KDRA8H
2
3.2
CIE1-BYP002-P4/3
CIE3R-BYP002-P4/3
CIE1-BYP002-P4
CIE3R-BYP002-P4
VFD-KDRA1L
VFD-KDRA1H
3
4.8
CIE1-BYP003-P4/3
CIE3R-BYP003-P4/3
CIE1-BYP003-P4
CIE3R-BYP003-P4
VFD-KDRA2L
VFD-KDRA2H
5
6.4
CIE1-BYP005-P4/3
CIE3R-BYP005-P4/3
CIE1-BYP005-P4
CIE3R-BYP005-P4
VFD-KDRA3L
VFD-KDRA3H
7.5
5.5
CIE1-BYP007-P4/3
CIE3R-BYP007-P4/3
CIE1-BYP007-P4
CIE3R-BYP007-P4
VFD-KDRA4L
VFD-KDRA4H
10
7.5
CIE1-BYP010-P4/3
CIE3R-BYP010-P4/3
CIE1-BYP010-P4
CIE3R-BYP010-P4
VFD-KDRA5L
VFD-KDRA5H
15
11
CIE1-BYP015-P4/3
CIE3R-BYP015-P4/3
CIE1-BYP015-P4
CIE3R-BYP015-P4
VFD-KDRB2L
VFD-KDRB2H
20
15
CIE1-BYP020-P4/3
CIE3R-BYP020-P4/3
CIE1-BYP020-P4
CIE3R-BYP020-P4
VFD-KDRB1L
VFD-KDRC3H
25
18.5
CIE1-BYP025-P4/3
CIE3R-BYP025-P4/3
CIE1-BYP025-P4
CIE3R-BYP025-P4
VFD-KDRD1L
VFD-KDRC1H
30
22
CIE1-BYP030-P4/3
CIE3R-BYP030-P4/3
CIE1-BYP030-P4
CIE3R-BYP030-P4
VFD-KDRD2L
VFD-KDRE2H
40
30
CIE1-BYP040-P4/3
CIE3R-BYP040-P4/3
CIE1-BYP040-P4
CIE3R-BYP040-P4
VFD-KDRC1L
VFD-KDRF4H
50
37
CIE1-BYP050-P4/3
CIE3R-BYP050-P4/3
CIE1-BYP050-P4
CIE3R-BYP050-P4
VFD-KDRF2L
VFD-KDRF1H
60
45
CIE1-BYP060-P4/3
CIE3R-BYP060-P4/3
CIE1-BYP060-P4
CIE3R-BYP060-P4
VFD-KDRF4L
VFD-KDRF2H
75
55
CIE1-BYP075-P4/3
CIE3R-BYP075-P4/3
CIE1-BYP075-P4
CIE3R-BYP075-P4
VFD-KDRF3L
VFD-KDRH2H
100
75
CIE1-BYP100-P4/3
CIE3R-BYP100-P4/3
CIE1-BYP100-P4
CIE3R-BYP100-P4
VFD-KDRH3L
VFD-KDRH1H
125
90
CIE1-BYP125-P4/3
CIE3R-BYP125-P4/3
CIE1-BYP125-P4
CIE3R-BYP125-P4
VFD-KDRH2L
VFD-KDRG3H
11
VARIABLE FREQUENCY DRIVES
N1 P-Series Enclosed with Disconnect 1–30HP (200~230VAC), 1–40HP (380~480VAC), 3Ø Dual Rated for Constant & Variable Torque Integrated PID Control
Easy Installation, Time Saving Design
Reduces labor costs Attractive, mated design MMS disconnect Fireman’s override/smoke purge capable UL 508C rating with all drive models for maximum motor protection Optional Input drive reactor, HOA switch, manual speed potentiometer, and communications
Rugged disconnect includes padlock provisions.
The 32-character backlit LCD screen displays the drive’s operational status and parameter settings. A very easy drive to setp up.
Dimensions B
C
A
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P-Series Drive with Disconnect
H x W x D, (A x B x C)
CIE1-ED001-P2/D ~ CIE1-ED015-P4/D
24.50”x 8.00” x8.12”
CIE1-ED020-P2/D ~ CIE1-ED020-P4/D
32.50” x 9.97” x8.70”
CIE1-ED025-P2/D ~ CIE1-ED040-P4/D
40.00” x 12.17” x 9.97”
VARIABLE FREQUENCY DRIVES
Options Part Number
Description
VFD-HOA
Hand/Off/Auto switch
VFD-SPD
Door Mounted Speed Potentiometer
CI-R4-COM
RS485 communication card
CI-BN-COM
BACnet communication card
CI-LW-COM
Lonworks communication card
CI-N2-COM
N2 communication card
3-Phase, 200~230V P-Series VFD Standard Duty (VT)
Part Number
3% Line Reactor
5
CIE1-ED001-P2/D
VFD-KDRA25L
8
CIE1-ED002-P2/D
VFD-KDRA27L
2.2
12
CIE1-ED003-P2/D
VFD-KDRA28L
HP
kW
FLA
1
0.75
2
1.5
3 5
3.7
16
CIE1-ED005-P2/D
VFD-KDRB22L
7.5
5.5
24
CIE1-ED007-P2/D
VFD-KDRB23L
10
7.5
32
CIE1-ED010-P2/D
VFD-KDRD25L
15
11
46
CIE1-ED015-P2/D
VFD-KDRD24L
20
15
60
CIE1-ED020-P2/D
VFD-KDRD26L
25
18.5
74
CIE1-ED025-P2/D
VFD-KDRC22L
30
22
88
CIE1-ED030-P2/D
VFD-KDRF24L
Part Number
3% Line Reactor
3-Phase, 380~480V P-Series VFD Standard Duty (VT) HP
kW
FLA
1
0.75
2.5
CIE1-ED001-P4/D
VFD-KDRA8L
2
1.5
4
CIE1-ED002-P4/D
VFD-KDRA1L
3
2.2
6
CIE1-ED003-P4/D
VFD-KDRA2L
5
3.7
8
CIE1-ED005-P4/D
VFD-KDRA3L
7.5
5.5
12
CIE1-ED007-P4/D
VFD-KDRA4L
10
7.5
16
CIE1-ED010-P4/D
VFD-KDRA5L
15
11
24
CIE1-ED015-P4/D
VFD-KDRB2L
20
15
30
CIE1-ED020-P4/D
VFD-KDRB1L
25
18.5
39
CIE1-ED025-P4/D
VFD-KDRD1L
30
22
45
CIE1-ED030-P4/D
VFD-KDRD2L
40
30
61
CIE1-ED040-P4/D
VFD-KDRC1L
For single phase sizing consult factory - 800.962.3787
13
VARIABLE FREQUENCY DRIVES
Enclosed P-Series VFD
7.5–40HP (200~230VAC), 7.5–400HP (380~480VAC), 3Ø Dual Rated for Constant & Variable Torque Integrated PID Control
12 UL Type
UL 3R
Designed to Withstand Harsh Environments 3R or UL Type 12 packaging for outdoor and/or wash down applications Additional application-specific protective options - Lightning/Surge Arrestor - Line Reactors - Load Reactors - dV/dT Filter Rainproof UL Type 3R enclosure reduces thermal absorption with white, solar reflective finish and filtered cooling fans Standard enclosed VFD package is rated for 92° F outside temperature, non-direct sunlight Attain up to 110° F outside temperature, non-direct sunlight by de-rating VFD
Functionality A single VFD has the capability to control up to four additional motors reducing the need for additional controls
14
Sleep mode reduces energy consumption by stopping motors during periods of low demand Flexible sensor inputs accept 0-10VDC and 4-20mA analog signals VFD provides additional 12VDC and 24VDC power for sensors PID control and Pre-PID mode with time delay reduces water hammer and cavitation while providing precise system control Dual PID control for external PID control of a secondary system
www.cerusind.com 1.800.962.3787
VARIABLE FREQUENCY DRIVES
Ordering and Sizing Information Options Part Number
Description
VFD-RPL*
Run Pilot Light (Green Standard)
VFD-FLT*
Fault Pilot Light (Red Standard)
VFD-HOA
Hand/Off/Auto Switch
VFD-SPD
Door Mounted Speed Potentiometer
VFD-LTA
Lightning Arrestor
VFD-KPD
Door Mounted Keypad
VFD-KPD/4X
Door Mounted Keypad with Type 4X Cover
* Select 24V or 120V based on package control voltage. For UL Type 1 select 24V. For UL Type 3R & 12 select 120V.
3-Phase, 200~230V Enclosed Packages Standard Duty (VT) 1Ø HP*
3Ø HP
FLA
UL Type 3R
UL Type 12
3% Line Reactor
Output Reactor
Output Filter
2
5
24
CIE3R-ED005-P2
CIE12-ED005-P2
VFD-KDRB22L
VFD-KDRD1P
VFD-V1K16A00
3
7.5
24
CIE3R-ED007-P2
CIE12-ED007-P2
VFD-KDRB23L
VFD-KDRD2P
VFD-V1K25A00
5
10
32
CIE3R-ED010-P2
CIE12-ED010-P2
VFD-KDRD25L
VFD-KDRD3P
VFD-V1K35A00
7.5
15
46
CIE3R-ED015-P2
CIE12-ED015-P2
VFD-KDRD24L
VFD-KDRC1P
VFD-V1K45A00
10
20
60
CIE3R-ED020-P2
CIE12-ED020-P2
VFD-KDRD26L
VFD-KDRF1P
VFD-V1K55A00
10
25
74
CIE3R-ED025-P2
CIE12-ED025-P2
VFD-KDRC22L
VFD-KDRF2P
VFD-V1K80A00
15
30
88
CIE3R-ED030-P2
CIE12-ED030-P2
VFD-KDRF24L
VFD-KDRF3P
VFD-V1K80A00
20
40
115
CIE3R-ED040-P2
CIE12-ED040-P2
VFD-KDRF25L
VFD-KDRH1P
VFD-V1K110A00
* Maximum HP of 3-phase motor in single phase power applications
3-Phase, 380~480V Enclosed Packages Standard Duty (VT) 1Ø HP*
3Ø HP
FLA
UL Type 3R
UL Type 12
3% Line Reactor
Output Reactor
Output Filter
2
5
12
CIE3R-ED005-P4
CIE12-ED005-P4
VFD-KDRA3L
VFD-KDRA3P
VFD-V1K8A00
3
7.5
12
CIE3R-ED007-P4
CIE12-ED007-P4
VFD-KDRA4L
VFD-KDRA4P
VFD-V1K12A00
5
10
16
CIE3R-ED010-P4
CIE12-ED010-P4
VFD-KDRA5L
VFD-KDRB1P
VFD-V1K18A00
7.5
15
24
CIE3R-ED015-P4
CIE12-ED015-P4
VFD-KDRB2L
VFD-KDRD1P
VFD-V1K21A00
10
20
30
CIE3R-ED020-P4
CIE12-ED020-P4
VFD-KDRB1L
VFD-KDRD2P
VFD-V1K27A00
10
25
39
CIE3R-ED025-P4
CIE12-ED025-P4
VFD-KDRD1L
VFD-KDRD3P
VFD-V1K35A00
15
30
45
CIE3R-ED030-P4
CIE12-ED030-P4
VFD-KDRD2L
VFD-KDRD4P
VFD-V1K45A00
20
40
61
CIE3R-ED040-P4
CIE12-ED040-P4
VFD-KDRC1L
VFD-KDRC1P
VFD-V1K55A00
20
50
75
CIE3R-ED050-P4
CIE12-ED050-P4
VFD-KDRF2L
VFD-KDRF1P
VFD-V1K80A00
20
60
91
CIE3R-ED060-P4
CIE12-ED060-P4
VFD-KDRF4L
VFD-KDRF2P
VFD-V1K80A00
20
75
110
CIE3R-ED075-P4
CIE12-ED075-P4
VFD-KDRF3L
VFD-KDRF3P
VFD-V1K110A00
20
100
152
CIE3R-ED0100-P4
CIE12-ED100-P4
VFD-KDRH3L
VFD-KDRH1P
VFD-V1K130A00
20
125
183
CIE3R-ED0125-P4
CIE12-ED125-P4
VFD-KDRH2L
VFD-KDRI1P
VFD-V1K160A00
* Maximum HP of 3-phase motor in single phase power applications
15
VARIABLE FREQUENCY DRIVES
Compact GS-Series VFD 0.5–5HP
200~230VAC, 380~480VAC, 3Ø Compact Design, Sensorless & VF Control
Sensorless vector control
Precise speed control and powerful high torque, up to 150% at 0.5 Hz Improves control with varying loads Auto tuning simplifies commissioning Sensorless mode also selectable
Space Vector Modulation for superior motor life Super clean sine wave for cool running motors and high efficiency Minimizes heat losses in for long motor life
Integrated PID Precise control to maintain flow-rate, pressure, temperature, etc. without any extra controller. Accepts -10V to 10V analog signals
With sensorless control the GS series makes motor control easy.
Operation algorithm Helps prevent nuisance tripping
Dynamic braking circuit Minimizes deceleration time on high inertia loads when used with braking resistors.
Built-in RS-485 communication Remote control and monitoring with other controllers (Modbus standard)
Ground-fault protection Superior equipment protection
Cooling fan control Quiet, low noise operation; easy to replace fan module
16
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The easy to use 4-direction keypad makes settings a snap.
VARIABLE FREQUENCY DRIVES
Intuitive multi-direction keypad User friendly and easy use
Optional external keypad for remote control/monitoring Loader parameters can be downloaded effectively “cloning” inverters for fast set up in subsequent jobs
Specifications Output ratings
Input ratings
Voltage (V) Three phase, 200~230V or Three phase, 380~480V Frequency (Hz) 0~400Hz Voltage (V) Three phase, 200~230V (+10%, -15%) or Three phase, 380~480V (+10%, -15%) Frequency (Hz) 50~60Hz (±5%) Control method Sensorless Vector, V/F control (Space vector PWM) Frequency setting resolution Digital reference: 0.01Hz (below 99Hz) & 0.1Hz (100Hz and over); Analog reference: 0.03Hz at 50Hz Frequency setting accuracy Digital: 0.01% of maximum output frequency; Analog: 0.1% of maximum output frequency V/F ratio Linear; Square; User V/F
Operation
Overload capacity 1 minute at 150%; 30 seconds at 200% (with inverse characteristic proportional to time) Torque boost Auto; Manual (0~15%) Assigned terminals FX (forward), RX (reverse), BX (inverter gate blocking), RST (reset), JOG (jog) Programmable input 8 digital inputs Analog output 0~10V linear Operator control 4 digit LED display/keypad, Terminals, ModBus communication Frequency setting Analog: 0~10V, 4~20mA, Digital: Keypad, Communication: ModBus Start signal Forward, Reverse Multi-step operation Setting up to 8 speeds (using multi-function terminal)
Input signal
Multi-step accel./decel. time 0.1~6000 seconds. Maximum 8 pre-defined steps using multi-function terminals Operational functions DC braking, Frequency limit, Frequency jump, function, Slip compensation, Reverse rotation prevention Emergency stop stops output from inverter Jog Jog operation Fault reset Resets fault signal when protective function is active
Output signal
Operational status
Frequency detection, Overload alarm, Stall, Overvoltage, Undervoltage, Inverter overheat, Run, Stop, Constant speed, Speed search, Fault output (relay and open collector output)
Indicator Output frequency, Output current, Output voltage, DC voltage, rpm
Protective functions
Trip
Overvoltage, Undervoltage, Overcurrent, Inverter overheat, Motor overheat, I/O phase loss, Overload, Speed command loss, Hardware fault, Communication error, etc.
Alarm Stall, Overload Ambient temperature -10°~ 50° C (14°~122° F) Storage temperature -20°~ 65° C (-4°~149.5° F) Operating environment
Humidity 90% Relative Humidity maximum (non-condensing) Altitude & Vibration 1000m max, 5.9m/sec2(0.6g) max. Application site No corrosive gas, flammable gas, oil mist or dust CI-000-GS2/GS4, CI-001-GS2/GS4 5.04” x 2.76” x 5.12” (Height is 6.90” w/ NEMA kit)
Dimensions (H x W x D)
CI-002-GS2/GS4 5.04” x 3.94” x 5.12” (Height is 6.90” w/ NEMA kit) CI-003-GS2/GS4, CI-005-GS2/GS4 5.04” x 5.51” x 6.10” (Height is 6.90” w/ NEMA kit) CI-000-GS2/GS4, CI-001-GS2/GS4 1.7 lbs
Weight (lbs)
CI-002-GS2/GS4 2.5 lbs CI-003-GS2/GS4, CI-005-GS2/GS4 4.1 lbs
17
VARIABLE FREQUENCY DRIVES GS Series Wiring
*For general reference only, not field wiring. Consult installation instructions.
3-Phase, 200~230V GS - Series VFD HP
kW
Capacity (kVA)
FLA
Part Number
NEMA 1 Kit
3% Line Reactor*
1/2
0.4
0.95
2.5
CI-000-GS2
CI-NEMA1-GS/A
KDRULA54LE01
1
0.75
1.9
5
CI-001-GS2
CI-NEMA1-GS/A
KDRULA25LE01
2
1.5
3
8
CI-002-GS2
CI-NEMA1-GS/B
KDRULA27LE01
3
2.2
4.5
12
CI-003-GS2
CI-NEMA1-GS/C
KDRULA28LE01
5
3.7
6.1
16
CI-005-GS2
CI-NEMA1-GS/C
KDRULB22LE01
* Line Reactors housed in separate UL Type 1 Enclosure
3-Phase, 380~480V GS - Series VFD HP
kW
Capacity (kVA)
FLA
Part Number
NEMA 1 Kit
3% Line Reactor*
1/2
0.4
0.95
1.25
CI-000-GS4
CI-NEMA1-GS/A
KDRULA6LE01
1
0.75
1.9
2.5
CI-001-GS4
CI-NEMA1-GS/A
KDRULA8LE01
2
1.5
3
4
CI-002-GS4
CI-NEMA1-GS/B
KDRULA1LE01
3
2.2
4.5
6
CI-003-GS4
CI-NEMA1-GS/C
KDRULA2LE01
5
3.7
6.1
8
CI-005-GS4
CI-NEMA1-GS/C
KDRULA3LE01
Options Description
18
* Line Reactors housed in separate UL Type 1 Enclosure Part Number
Remote Keypad Mounting Kit (2 Meter Cable)
CI-RKPK-EXT2M-GS
Remote Keypad Mounting Kit (3 Meter Cable)
CI-RKPK-EXT3M-GS
Remote Keypad Mounting Kit (5 Meter Cable)
CI-RKPK-EXT5M-GS
www.cerusind.com 1.800.962.3787
VARIABLE FREQUENCY DRIVES
Enclosed GS-Series VFD
0.5HP-5HP 200~230VAC, 380~480VAC, 3Ă&#x2DC; Compact Design, Senserless & VF Control
Representative photo only (acutal product may vary based on configuration selections)
Options
3-Phase, 200~230V GS-Series Enclosed VFD HP
kW Capacity (kVA) FLA
Base part #
3% Line Reactor*
1/2
0.4
0.95
Part Number
2.5
CIE12-ED000-GS2
VFD-KDRA54L
VFD-RPL*
Run Pilot Light (Green Standard)
1
0.75
1.9
5
CIE12-ED001-GS2
VFD-KDRA25L
2
VFD-FLT*
Fault Pilot Light (Red Standard)
1.5
3
8
CIE12-ED002-GS2
VFD-KDRA27L
VFD-OFF*
Off Pilot Light (Red Standard)
3
2.2
4.5
12
CIE12-ED003-GS2
VFD-KDRA28L
VFD-HOA
Hand/Off/Auto switch
5
3.7
6.1
16
CIE12-ED005-GS2
VFD-KDRA22L
VFD-SPD
Door Mounted Speed Potentiometer
VFD-LTA
Lightning Arrestor
VFD-KPD
Door Mounted Keypad
VFD-KPD/4X
Door Mounted Keypad with Type 4X Cover
3-Phase, 380~480V GS-Series Enclosed VFD HP
kW Capacity (kVA) FLA
Base part #
3% Line Reactor*
1/2
0.4
0.95
1.25
CIE12-ED000-GS4
VFD-KDRA6L
1
0.75
1.9
2.5
CIE12-ED001-GS4
VFD-KDRA8L
2
1.5
3
4
CIE12-ED002-GS4
VFD-KDRA1L
3
2.2
4.5
6
CIE12-ED003-GS4
VFD-KDRA2L
5
3.7
6.1
8
CIE12-ED005-GS4
VFD-KDRA3L
Description
* Select 24V or 120V based on package control voltage. For UL Type 1 select 24V. For UL Type 3R & 12 select 120V.
19
VARIABLE FREQUENCY DRIVES
GS-Series Bypass
0.5–5HP 200~230VAC, 380~480VAC, 3Ø Space Vector Pulse Width Modulation
Standard HVAC bypass features
HAND/OFF/AUTO Fireman’s override/smoke purge ready 2 contactor with manual motor starter disconnect version UL 508C rating with all drive models for maximum motor protection
Wide range of design options
Door mounted controls, speed pot, HOA, & pilot lights Input or output drive reactors Electronic overload with full phase protection on bypass
Fully enclosed drives for any environment W e offer any enclosure type and NEMA ratings (Stainless, fiberglass, watertight, etc.) Dust tight type 12 enclosures include ducting and ventilation for maximum cooling
Applications Supply and return fans Performance contracting Building Automation
20
www.cerusind.com 1.800.962.3787
Interior Bypass Photo
VARIABLE FREQUENCY DRIVES
Options
Type 3R Rain Resistant
Type 1 Indoor
Part Number
Description
VFD-RPL*
Run Pilot Light (Green Standard)
VFD-BPL*
Bypass Pilot Light (Amber Standard)
VFD-FLT*
Fault Pilot Light (Red Standard)
VFD-OFF*
Off Pilot Light (Red Standard)
VFD-SPD
Door Mounted Speed Potentiometer
VFD-LTA
Lightning Arrestor
VFD-KPD
Door Mounted Keypad
VFD-KPD/4X
Door Mounted Keypad with Type 4X Cover
* Select 24V or 120V based on package control voltage. For UL Type 1 select 24V. For UL Type 3R & 12 select 120V.
3-Phase, 230V GS-Series VFD Bypass Bypass with Drive Isolation (3-Contactor) HP
FLA
1/2 1
2-Contactor Bypass Configuration
UL Type 1
UL Type 3R
UL Type 12
UL Type 1
UL Type 3R
UL Type 12
2.5
CIE1-BYP000-GS2/3
CIE3R-BYP000-GS2/3
CIE12-BYP000-GS2/3
CIE1-BYP000-GS2
CIE3R-BYP000-GS2
CIE12-BYP000-GS2
5
CIE1-BYP001-GS2/3
CIE3R-BYP001-GS2/3
CIE12-BYP001-GS2/3
CIE1-BYP001-GS2
CIE3R-BYP001-GS2
CIE12-BYP001-GS2
2
8
CIE1-BYP002-GS2/3
CIE3R-BYP002-GS2/3
CIE12-BYP002-GS2/3
CIE1-BYP002-GS2
CIE3R-BYP002-GS2
CIE12-BYP002-GS2
3
12
CIE1-BYP003-GS2/3
CIE3R-BYP003-GS2/3
CIE12-BYP003-GS2/3
CIE1-BYP003-GS2
CIE3R-BYP003-GS2
CIE12-BYP003-GS2
5
16
CIE1-BYP005-GS2/3
CIE3R-BYP005-GS2/3
CIE12-BYP005-GS2/3
CIE1-BYP005-GS2
CIE3R-BYP005-GS2
CIE12-BYP005-GS2
3-Phase, 460V GS-Series VFD Bypass Bypass with Drive Isolation (3-Contactor) HP
FLA
1/2
2-Contactor Bypass Configuration
UL Type 1
UL Type 3R
UL Type 12
UL Type 1
UL Type 3R
UL Type 12
1.25
CIE1-BYP000-GS4/3
CIE3R-BYP000-GS4/3
CIE12-BYP000-GS4/3
CIE1-BYP000-GS4
CIE3R-BYP000-GS4
CIE12-BYP000-GS4
1
2.5
CIE1-BYP001-GS4/3
CIE3R-BYP001-GS4/3
CIE12-BYP001-GS4/3
CIE1-BYP001-GS4
CIE3R-BYP001-GS4
CIE12-BYP001-GS4
2
4
CIE1-BYP002-GS4/3
CIE3R-BYP002-GS4/3
CIE12-BYP002-GS4/3
CIE1-BYP002-GS4
CIE3R-BYP002-GS4
CIE12-BYP002-GS4
3
6
CIE1-BYP003-GS4/3
CIE3R-BYP003-GS4/3
CIE12-BYP003-GS4/3
CIE1-BYP003-GS4
CIE3R-BYP003-GS4
CIE12-BYP003-GS4
5
8
CIE1-BYP005-GS4/3
CIE3R-BYP005-GS4/3
CIE12-BYP005-GS4/3
CIE1-BYP005-GS4
CIE3R-BYP005-GS4
CIE12-BYP005-GS4
230V Line Reactor Options
460V Line Reactor Options
HP
Part Number
HP
Part Number
1/2
VFD-KDRA54L
1/2
VFD-KDRA6L
1
VFD-KDRA25L
1
VFD-KDRA8L
2
VFD-KDRA27L
2
VFD-KDRA1L
3
VFD-KDRA28L
3
VFD-KDRA2L
5
VFD-KDRA22L
5
VFD-KDRA3L
21
COOLING TOWER PANEL
TOWER IQ Stand alone or Slave Operation Options Scalable to meet any application Cerus Energy Saving VFDs
All inclusive single point cooling tower control Integrates with an existing automation system or temperature control option for standalone application Scalable options to meet any application Adequately sized to add other options including spray pump, basin heater control, line reactors, and other critical features.
Smart Design
Cerus P-Series HVAC drive for optimum performance
Space-vector control for clean sinewave output for efficiency and enhanced motor life Automatic energy savings mode Dual PID controls. Primary for maintaining temperature, pressure, etc., additional for secondary PID control of external device. 32 character LCD for easy set up and parameter display. Standard kWh metering of energy usage to optimize control
Multiple PID set points Programmable and selectable for maintaining pressure or temperature during different seasons or operating conditions
Integrated HOA and 3-Contactor Bypass Standard Integrated HOA and status indications for simplified operation VFD isolating three contactor bypass with disconnect options standard
22
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“Having the ability to retrofit existing installations with a stand-alone capable panel gives us immediate energy savings-regardless of the type of energy management system.”
VARIABLE FREQUENCY DRIVES
Single source control reduces components; increases reliability Wide range of options available. One connection point for power
Temperature control option provides complete stand alone operation.
Ideal for retrofit Start/stop sequencing for fans, dampers, and spray pumps Provides analog output to vary speed of drive Accepts direct input from RTD type sensor or thermocouple Adjustments for set-points and hysteresis
Additional Options 2-stage Temperature Control
Basin Heater Control Prevents freezing Contactor activated by external signal (i.e.thermostat). Provision for low water protection
86.5
Start/stop sequencing for fans, dampers, and spray pumps Provides analog output to vary speed of drive Accepts direct input from RTD type sensor or thermocouple Adjustments for set-points and hysteresis
Vibration cut-out
Line Reactors
Provision for vibration switch cut-out
For use in systems with unstable utility power, long leads from service transformer to VFD and/or when power source is greater than 10 times the kVA rating of the inverter Provides harmonic distortion filtering
Water Level Control Power Provides 120VAC @ 2A
Output Reactor/Filters Use when leads from drive to motor exceed 35’ at 480VAC or greater. Above 100’ use output filter Decreases level of voltage spikes to prevent motor insulation breakdown.
Spray Pump Starter Full voltage starter with overload relay HOA switch provided Status indication options
Panel Space Heater To prevent condensation and freezing
23
COOLING TOWER PANEL
Tower IQ Specifications Protective Functions Alarm
Alarm Stall, Overload, Temperature sensor fault
Trip
Overvoltage, Undervoltage, Overcurrent, Inverter overheat, Motor overheat, I/O phase loss, Fuse open, Ground fault, External fault 1, 2, Option fault, Overload, Speed command loss, Hardware fault, Communication error, etc.
Input / Output Voltage
3 phase 200 – 230V (-15%,+10%) 50 -60Hz, 3 phase 480V (-15%,+10%) 50 -60Hz
Power Rating
7.5 HP to 400 HP
Efficiency
> 95%
Control Input
0-10 VDC, 4-20 mA, keypad, or digital input from communication card
Communication Options
BACnet, Modbus, LonWorks, N2, or RS485
Environmental
Package: UL Type 3R for outdoor or UL Type 12: Ambient temperature up to 110ºF; UL type indoor humidity up to 90%RH non-condensing. Drive: Ambient temperature up to 122ºF
Programmable I/O
8 digital inputs, 4 digital outputs, 2 analog outputs
Options
24
Spray Pump Starter
1 hp to 20 hp (output voltage matches panel main voltage)
Basin Heater
4 kW to 25 kW (output voltage matches panel main voltage)
De-Icer
Digital input for fan reverse
www.cerusind.com 1.800.962.3787
VARIABLE FREQUENCY DRIVES
Ordering and Sizing Information Options Part Number
Description
VFD-RPL*
Run Pilot Light (Green Standard)
VFD-BPL*
Bypass Pilot Light (Amber Standard)
VFD-FLT*
Fault Pilot Light (Red Standard)
VFD-OFF*
Off Pilot Light (Red Standard)
CTP-TC
Temperature Controller
CTP-60HTR
60W Panel Space Heater
CTP-250HTR
250W Panel Space Heater
* Select 24V or 120V based on package control voltage. For UL Type 1 select 24V. For UL Type 3R & 12 select 120V.
3-Phase, 200~230V Cooling Tower Control HP
FLA
UL Type 1
UL Type 3R
5
24
CTP1-BYP005-P2
CTP3R-BYP005-P2
VFD-KDRB22L
7.5
24
CTP1-BYP007-P2
CTP3R-BYP007-P2
VFD-KDRB23L
10
32
CTP1-BYP010-P2
CTP3R-BYP010-P2
VFD-KDRD25L
15
46
CTP1-BYP015-P2
CTP3R-BYP015-P2
VFD-KDRD24L
20
60
CTP1-BYP020-P2
CTP3R-BYP020-P2
VFD-KDRD26L
25
74
CTP1-BYP025-P2
CTP3R-BYP025-P2
VFD-KDRC22L
30
88
CTP1-BYP030-P2
CTP3R-BYP030-P2
VFD-KDRF24L
40
115
CTP1-BYP040-P2
CTP3R-BYP040-P2
VFD-KDRF25L
3% Line Reactor
3-Phase, 380~480V Cooling Tower Control HP
FLA
UL Type 1
UL Type 3R
3% Line Reactor
Output Reactor
Output Filter
5
12
CTP1-BYP005-P4
CTP3R-BYP005-P4
VFD-KDRA3L
VFD-KDRA3P
VFD-V1K8A00
7.5
12
CTP1-BYP007-P4
CTP3R-BYP007-P4
VFD-KDRA4L
VFD-KDRA4P
VFD-V1K12A00
10
16
CTP1-BYP010-P4
CTP3R-BYP010-P4
VFD-KDRA5L
VFD-KDRB1P
VFD-V1K18A00
15
24
CTP1-BYP015-P4
CTP3R-BYP015-P4
VFD-KDRB2L
VFD-KDRD1P
VFD-V1K21A00
20
30
CTP1-BYP020-P4
CTP3R-BYP020-P4
VFD-KDRB1L
VFD-KDRD2P
VFD-V1K27A00
25
39
CTP1-BYP025-P4
CTP3R-BYP025-P4
VFD-KDRD1L
VFD-KDRD3P
VFD-V1K35A00
30
45
CTP1-BYP030-P4
CTP3R-BYP030-P4
VFD-KDRD2L
VFD-KDRD4P
VFD-V1K45A00
40
61
CTP1-BYP040-P4
CTP3R-BYP040-P4
VFD-KDRC1L
VFD-KDRC1P
VFD-V1K55A00
50
75
CTP1-BYP050-P4
CTP3R-BYP050-P4
VFD-KDRF2L
VFD-KDRF1P
VFD-V1K80A00
60
91
CTP1-BYP060-P4
CTP3R-BYP060-P4
VFD-KDRF4L
VFD-KDRF2P
VFD-V1K80A00
75
110
CTP1-BYP075-P4
CTP3R-BYP075-P4
VFD-KDRF3L
VFD-KDRF3P
VFD-V1K110A00
100
152
CTP1-BYP0100-P4
CTP3R-BYP100-P4
VFD-KDRH3L
VFD-KDRH1P
VFD-V1K130A00
125
183
CTP1-BYP0125-P4
CTP3R-BYP125-P4
VFD-KDRH2L
VFD-KDRI1P
VFD-V1K160A00
Cooling Tower Options Basin Heater Contactor & Spray Pump Starter Basin Heater Contactor Spray Pump Starter kW 3 Phase HP Max Basin Heater Spray Pump 208V 230V 480V Amps 208V 230V 460V 3/4
3/4
2
2.5
CTP-9/HI-2.5
1/2
1/2
1
CTP-9/H-2.5
1
1.5
3
4.0
CTP-9/HI-4
3/4
3/4
2
CTP-9/H-4
2
2
4
6.0
CTP-9/HI-6
1
1.5
3
CTP-9/H-6
2.5
3
6
8.0
CTP-9/HI-8
2
2
5
CTP-9/H-8
3
3.5
8
10.0
CTP-18/HI-10
2
3
5
CTP-18/H-10
4
5
10
13.0
CTP-18/HI-13
3
3
7.5
CTP-18/H-13
6
6.5
14
17.0
CTP-18/HI-17
3
5
10
CTP-18/H-17
7.5
8.5
18
22.0
CTP-32/HI-22
5
7.5
15
CTP-32/H-22
9
10
21
26.0
CTP-32/HI-26
7.5
7.5
15
CTP-32/H-26
11
12
26
32.0
CTP-32/HI-32
7.5
10
20
CTP-32/H-32
25
VARIABLE FREQUENCY DRIVES
ENCLOSED DRIVES FOR ANY ENVIRONMENT Wide range of design options
Door mounted controls, speed pot, HOA, & pilot lights Input or output drive reactors Electronic overload with full phase protection on bypass
Cerus also offfers bypass assemblies for any environment
Fully enclosed drives for any environment W e offer any enclosure type and NEMA ratings (Stainless, fiberglass, watertight, etc.) Dust tight type 12 enclosures include ducting and ventilation for maximum cooling
We respond. And that’s got people talking www.cerusind.com 1.800.962.3787
VARIABLE FREQUENCY DRIVES
We offer engineered solutions for our starter and VFD products to suit your specific application requirement. Modifications include a full range of enclosure options capable of withstanding almost any environment, complex multi-motor control, or simply ensuring the controls follow a specific sequence of operations. We respond, often times with same day quotes depending on application complexity and job requirements.
Redundant Drive Configuration
With a Redundant Drive Package you have a backup
Easy set up thanks to 32 character LCD & simplified parameters Maximum Energy Savings with space vector control Versatile features for demanding applications, built in multi-motor control (for up to 4 additional motors) Torque boost and speed search features offer smooth motor starts
VARIABLE FREQUENCY DRIVES
P Series Dimensions *ALL MEASUREMENTS IN INCHES
P-Series Drive CI-007-P2 CI-007-P4
H x W x D, (A x B x C) 11.19”x 5.91” x6.17”
CI-010-P2 CI-010-P4 CI-015-P2
11.18” x 7.87” x 7.16”
CI-015-P4 CI-020-P2 C
CI-020-P4 CI-025-P2
15.16” x 9.84” x 7.94”
CI-025-P4 CI-030-P2 A B
CI-030-P4 CI-040-P2
18.11” x 11.97” x 9.22”
CI-040-P4
5.91”
6.17”
GS Series Dimensions *ALL MEASUREMENTS IN INCHES
GS-Series Drive
H x W x D, (A x B x C)
CI-000-GS2 CI-000-GS4
5.04”x2.76”x5.12”
CI-001-GS2 CI-001-GS4 CI-002-GS2 CI-002-GS4
5.04”x3.94”x5.12”
CI-003-GS2 CI-003-GS4 CI-005-GS2 CI-005-GS4
28
www.cerusind.com 1.800.962.3787
5.04”x5.51”x6.10”
VARIABLE FREQUENCY DRIVES
P-Series UL Type 1 Bypass Dimensions *ALL MEASUREMENTS IN INCHES 12.170”
UL Type 1 P-Drive Bypass
9.968” 9.967”
8.696”
8.000”
H x W x D (A x B x C)
CIE1-BYP001-P4 ~ CIE3R-BYP015-P4/3
40.13”x 8.00” x 8.12”
CIE1-BYP020-P4 ~ CIE1-BYP040-P4/3
50.12” x 9.98” x 8.67”
8.118”
CIE3R-BYP040-P2 50.185”
56.888”
40.125”
CIE3R-BYP040-P4 ~ CIE3R-BYP050-P4/3
56.9” x 12.17” x 9.97”
7.943”
8.256” 9.435”
GS Series UL Type 1 Bypass Dimensions *ALL MEASUREMENTS IN INCHES UL Type 1 GS-Drive Bypass 7.590
5.854
CIE1-BYP000-GS2 ~ CIE1-BYP005-GS2 CIE1-BYP000-GS4 ~ CIE1-BYP005-GS4
H x W x D (A x B x C)
32.00”x7.59”x5.84”
32.000
29 6.826
VARIABLE FREQUENCY DRIVES
P-Series UL Type 3R Bypass Dimensions *ALL MEASUREMENTS IN INCHES
UL Type 3R P-Drive Bypass CIE3R-BYP001-P2 ~ CIE3R-BYP010-P2/3 CIE3R-BYP001-P4 ~ CIE3R-BYP015-P4/3 CIE3R-BYP015-P2 ~ CIE3R-BYP020-P2/3 CIE3R-BYP040-P4 ~ CIE3R-BYP040-P4/3
H x W x D (A x B x C) 35” x 24” x 12”
41” x 24” x 12”
CIE3R-BYP040-P2 CIE3R-BYP040-P4 ~ CIE3R-BYP050-P4/3 CIE3R-BYP075-P4 ~ CIE3R-BYP075-P4/3
47” x 24” x 14”
56” x 36” x 16”
CIE3R-BYP040-P2/3
A
CIE3R-BYP060-P4 ~ CIE3R-BYP060-P4/3
42” x 30” x 16”
CIE3R-BYP100-P4 ~ CIE3R-BYP125-P4/3
67” x 36” x 16”
GS-Series UL Type 3R Bypass Dimensions *ALL MEASUREMENTS IN INCHES UL Type 3R GS-Drive Bypass CIE3R-BYP000-GS2 ~ CIE3R-BYP005-GS2 CIE3R-BYP000-GS4 ~ CIE3R-BYP005-GS4
A
30
www.cerusind.com 1.800.962.3787
H x W x D (A x B x C)
29” x 14” x 12”
VARIABLE FREQUENCY DRIVES
P-Series UL Type 12 Enclosed Dimensions *ALL MEASUREMENTS IN INCHES
12 P-Series Enclosed Drive
B
CIE12-ED007-P2/P4 CIE12-ED010-P2/P4 CIE12-ED015-P2/P4 CIE12-ED020-P2/P4
H x W x D, (A x B x C) 24”x20”x8” 30”x24”x12”
CIE12-ED025-P2/P4 CIE12-ED030-P2/P4
A
CIE12-ED040-P4
36”x24”x12’
CIE12-ED040-P2 CIE12-ED050-P4 CIE12-ED060-P4
36”x30”x16”
CIE12-ED075-P4 C
CIE12-ED100-P4 CIE12-ED125-P4 CIE12-ED150-P4 CIE12-ED200-P4 CIE12-ED250-P4
D
CIE12-ED350-P4 CIE12-ED400-P4
42”x30”x16” 60”x36”x20” 60”x48”x18” 72”x36”x24”
E
GS-Series UL Type 12 Enclosed Dimensions *ALL MEASUREMENTS IN INCHES B
12 GS-Series Enclosed Drive
H x W x D, (A x B x C)
ALL GS NEMA 12 Enclosures
16”x14”x8”
A
C
D
E
31
VARIABLE FREQUENCY DRIVES
P-Series UL Type 3R Enclosed Dimensions *ALL MEASUREMENTS IN INCHES 3R P Series Enclosed Drive
H x W x D, (A x B x C)
CIE3R-ED007-P2/P4
28”x24”x12”
CIE3R-ED010-P2
30”x20”x10”
CIE3R-ED010-P4 CIE3R-ED015-P2 CIE3R-ED015-P4 CIE3R-ED020-P2/P4 CIE3R-ED025-P2/P4 CIE3R-ED030-P2/P4
29”x24”x12” 35”x24”x12” 42”x24”x12’
CIE3R-ED040-P2
47”x24”x12”
CIE3R-ED040-P4
42”x24”x12’
CIE3R-ED050-P4 CIE3R-ED060-P4
47”x24”x14”
CIE3R-ED075-P4 CIE3R-ED100-P4 CIE3R-ED125-P4
A
CIE3R-ED150-P4 CIE3R-ED200-P4
56”x36”x16” 60”x46”x18”
GS-Series UL Type 3R Enclosed Dimensions *ALL MEASUREMENTS IN INCHES
3R GS Series Enclosed Drive H x W x D, (A x B x C) ALL GS NEMA 3R Enclosures
A
32
www.cerusind.com 1.800.962.3787
16”x12”x8”
VARIABLE FREQUENCY DRIVES
Cooling Tower Panel Dimensions *ALL MEASUREMENTS IN INCHES Cooling Tower Panel H x W x D, (A x B x C) Panel Dimensions
Mounting Pattern
35” x 24” x 12”
35.94”x13.00”
41” x 24” x 12”
41.94”x13.00”
47” x 24” x 14”
47.94”x13.00”
56” x 36” x 16”
55.94”x27.00”
67” x 36” x 16”
67.94”x27.00”
A
33
VARIABLE FREQUENCY DRIVES
Optimized Line Reactors 3 Phase, 600V Class UL & CE Marked Open Chassis & UL Type 1
Features
Optimized Line Reactors (200~230V)
Reduces input line distortion Eliminates transient and overvoltage nuisance tripping Provides excellent harmonic mitigation without adding capacitance Improve true power factor Helps to prevent VFD component damage
3%
5%
HP
Open Chassis
UL Type 1 Enclosed
Open Chassis
UL Type 1 Enclosed
1/2 3/4 1 1.5 2 3 5 7.5 10 15 20 25 30 40
KDRA54L KDRA53L KDRA25L KDRA26L KDRA27L KDRA28L KDRB22L KDRB23L KDRD25L KDRD24L KDRD26L KDRC22L KDRF24L KDRF25L
KDRULA54LE01 KDRULA53LE01 KDRULA25LE01 KDRULA26LE01 KDRULA27LE01 KDRULA28LE01 KDRULB22LE01 KDRULB23LE01 KDRULD25LE01 KDRULD24LE01 KDRULD26LE01 KDRULC22LE01 KDRULF24LE01 KDRULF25LE01
KDRA54H KDRA53H KDRA25H KDRA27H KDRA26H KDRA28H KDRB25H KDRB26H KDRD21H KDRD22H KDRC22H KDRF28H KDRF25H KDRF26H
KDRULA54HE01 KDRULA53HE01 KDRULA25HE01 KDRULA27HE01 KDRULA26HE01 KDRULA28HE01 KDRULB25HE01 KDRULB26HE01 KDRULD21HE01 KDRULD22HE01 KDRULC22HE01 KDRULF28HE01 KDRULF25HE01 KDRULF26HE01
Optimized Line Reactors (380~480V) 3%
Industrial Surge Arrestors Description
Part Number
3-Wire 1Ø 0~250V
LA-302
4-wire 3Ø 0~600V
LA-603
Specifications
34
Maximum current: 100kA Maximum energy: 3000J Unlimited number of surges Response times to clamp: - 1 mA test: 5 ns - 10kA: 10 ns - 50kA: 25 ns
www.cerusind.com 1.800.962.3787
5%
HP
Open Chassis
UL Type 1 Enclosed
Open Chassis
UL Type 1 Enclosed
1/2 3/4 1 1.5 2 3 5 7.5 10 15 20 25 30 40 50 60 75 100 125 150 200 250 300 350 400
KDRA6L KDRA7L KDRA8L KDRA9L KDRA1L KDRA2L KDRA3L KDRA4L KDRA5L KDRB2L KDRB1L KDRD1L KDRD2L KDRC1L KDRF2L KDRF4L KDRF3L KDRH3L KDRH2L KDRH1L KDRG3L KDRG1L KDRG2L KDRJ2L KDRJ1L
KDRULA6LE01 KDRULA7LE01 KDRULA8LE01 KDRULA9LE01 KDRULA1LE01 KDRULA2LE01 KDRULA3LE01 KDRULA4LE01 KDRULA5LE01 KDRULB2LE01 KDRULB1LE01 KDRULD1LE01 KDRULD2LE01 KDRULC1LE01 KDRULF2LE01 KDRULF4LE01 KDRULF3LE01 KDRULH3LE01 KDRULH2LE01 KDRULH1LE01 KDRULG3LE01 KDRULG1LE01 KDRULG2LE01 KDRULJ2LE01 KDRULJ1LE01
KDRA6H KDRA7H KDRA8H KDRA9H KDRA1H KDRA2H KDRA3H KDRA4H KDRA5H KDRB2H KDRC3H KDRC1H KDRE2H KDRF4H KDRF1H KDRF2H KDRH2H KDRH1H KDRG3H KDRG1H KDRJ1H KDRL1H KDRL2H KDRL3H KDRL4H
KDRULA6HE01 KDRULA7HE01 KDRULA8HE01 KDRULA9HE01 KDRULA1HE01 KDRULA2HE01 KDRULA3HE01 KDRULA4HE01 KDRULA5HE01 KDRULB2HE01 KDRULC3HE01 KDRULC1HE01 KDRULE2HE01 KDRULF4HE01 KDRULF1HE01 KDRULF2HE01 KDRULH2HE01 KDRULH1HE01 KDRULG3HE01 KDRULG1HE01 KDRULJ1HE01 KDRULL1HE01 KDRULL2HE01 KDRULL3HE01 KDRULL4HE01
VARIABLE FREQUENCY DRIVES
Drive Output Reactors & Filters 3 Phase, 600V Class UL & CE Marked UL Type 1 & 3R Available
Output Reactors
dV/dT Output Filters
Protection for motor leads between 50 - 100 ft Protects VFD output by dampening peak voltage overshoot Extends motor life by reducing heat and audible noise Helps prevent VFD instantaneous overcurrent trips
Optimized Output Reactors Horsepower 240V
480V
3/4 1 2 3 5 7.5 10 15 20 25 30 40 -
2 3 5 7.5 10 15 20 25 30 40 50 60 75 100 125 150 200 250 300 350 400
Protection for motor leads exceeding 100 ft Ensures smooth VFD sinusoidal output to motor Extends motor life by reducing heat, audible noise and insulation breakdown Reduces “reflective wave” effect by limiting peak voltage and rise time Helps prevent VFD instantaneous overcurrent trips
Optimized dV/dT Output Filter
Open Chassis
UL Type 1 Enclosed
KDRA1P KDRA2P KDRA3P KDRA4P KDRB1P KDRD1P KDRD2P KDRD3P KDRD4P KDRC1P KDRF1P KDRF2P KDRF3P KDRH1P KDRI1P KDRI2P KDRG1P KDRJ1P KDRJ2P KDRL1P KDRL2P
KDRULA1PE01 KDRULA2PE01 KDRULA3PE01 KDRULA4PE01 KDRULB1PE01 KDRULD1PE01 KDRULD2PE01 KDRULD3PE01 KDRULD4PE01 KDRULC1PE01 KDRULF1PE01 KDRULF2PE01 KDRULF3PE01 KDRULH1PE01 KDRULI1PE01 KDRULI2PE01 KDRULG1PE01 KDRULJ1PE01 KDRULJ2PE01 KDRULL1PE01 KDRULL2PE01
Horsepower 240V
480V
1/2 3/4 1-1.5 2 3 5 7.5 10 15 20 25-30 40 -
3/4 1-1.5 2 3 5 7.5 10 10 15 15 20 25 30 40 50 - 60 75 100 125 150 200 250 300 350 400
Open Chassis
UL Type 1 Enclosed
V1K2A00 V1K3A00 V1K4A00 V1K6A00 V1K8A00 V1K12A00 V1K16A00 V1K18A00 V1K21A00 V1K25A00 V1K27A00 V1K35A00 V1K45A00 V1K55A00 V1K80A00 V1K110A00 V1K130A00 V1K160A00 V1K200A00 V1K250A00 V1K305A00 V1K362A00 V1K420A00 V1K480A00
V1K2A01 V1K3A01 V1K4A01 V1K6A01 V1K8A01 V1K12A01 V1K16A01 V1K18A01 V1K21A01 V1K25A01 V1K27A01 V1K35A01 V1K45A01 V1K55A01 V1K80A01 V1K110A01 V1K130A01 V1K160A01 V1K200A01 V1K250A01 V1K305A01 V1K362A01 V1K420A01 V1K480A01
35
VARIABLE FREQUENCY DRIVES
Gage Pressure Sensors 0~500 PSIG Models Stainless Steel Construction 36” Wire Leads, 1/4”-18 NPT
Accurate, Reliable & Versatile Cerus pressure sensors are ideal for industrial and commercial applications where measurement and performance are critical. Additionally, these micro-machined sensors are compact in size, constructed of rugged materials designed to meet the highest standards of chemical compatibility.
Engineered for Superior Accuracy & Performance
±0.5% overall full scale at room temperature ±1% overall full scale over -40°C to 105°C for 75 PSI to 200 PSI Includes repeatability, hysteresis and linearity Custom ASIC provides signal conditioning for calibration and temperature compensation Optional electrical connectors available (Packard, Deutsch, Mini DIN, M12, Integral Harness)
Solid Construction Laser-welded stainless steel design for optimal media isolation Withstands up to three times full scale burst pressure Reverse voltage protected Gage Pressure Sensors
36
0-5VDC Output
4-20mA Output
Pressure Range
Part Number
Part Number
0-15 PSIG
PG-15SB
PG-15SC
0-25 PSIG
PG-25SB
PG-25SC
0-50 PSIG
PG-50SB
PG-50SC
0-75 PSIG
PG-75SB
PG-75SC
0-100 PSIG
PG-100SB
PG-100SC
0-250 PSIG
PG-250SB
PG-250SC
0-300 PSIG
PG-300SB
PG-300SC
0-500 PSIG
PG-500SB
PG-500SC
www.cerusind.com 1.800.962.3787
VARIABLE FREQUENCY DRIVES
Differential Pressure Transducers 0~2” & 0~25” WC Models Dual Output Signals (4-20mA & 0-5/10VDC) Open Frame & NEMA 4 Enclosure Options
Intrinsic Flow Measurement Technology for High Accuracy
Intrinsic flow measurement results in optimal performance No gravity effect allows mounting in any position LCD display for easy setup and commissioning Switch-selectable pressure ranges Applications include static pressure measurement, variable air volume system control and monitoring filter status
Differential Pressure Transducers - 0”~2” WC Pressure Range 0~1"
Specifications 12-30VDC/24VAC, 30mA maximum (13VDC min for 10V full scale output)
Power Supply Output Type
0~2”
Dual, 4-20mA & 0-5/10VDC (3-wire) 0-1” (Selectable 0.1, 0.5, 1.0) uni or bi-directional
Output Scaling
Pressure Range
32° to 122°F (0-50°C)
0~10"
Media compatibility
Dry, oil-free air, N2
Sensor Type
Digital CMOS intrinsic flow differential pressure
0~25"
Performance Position Effects
Part Number
Open Frame
PDP30-001
NEMA 4
PDP31-001
NEMA 4 w/ Probe
PDP32-001
Open Frame
PDP30-002
NEMA 4
PDP31-002
NEMA 4 w/ Probe
PDP32-002
Differential Pressure Transducers - 0”~25” WC
0-2” (Selectable 0.5, 1”, 2”) uni or bi-directional
Calibrated Temperature Range
Enclosure Type
Enclosure Type
Part Number
NEMA 4
PDP31-010
NEMA 4 w/ Probe
PDP32-010
NEMA 4
PDP31-025
NEMA 4 w/ Probe
PDP32-025
None - position insensitive Zero drift
Zero point Accuracy 0.5 Pa Span Accuracy 3% of reading
NEMA 4 enclosed Cerus Pressure Transducer shown with probe.
Zero point repeatability 0.1 Pa Span repeatability 0.5% of reading Temp offset None (less than resolution) Temp span shift < 0.5% of reading per 10°C
Selectable Ranges, Outputs and Stable Dry Media Operation
Zero drift technology ensures precision measurement LCD display for easy setup and commissioning Auto zero pushbutton input and auto zero control contact for system accuracy Applications include duct pressure monitoring and air-flow stations
Specifications Power Supply Output Type Output Scaling Calibrated Temperature Range Media Sensor Type Performance Accuracy (Linearity, hysteresis, temperature) Auto-zero input
12-30VDC/24VAC, 30mA maximum (13VDC min for 10V full scale output) Dual, 4-20mA & 0-5/10VDC (3-wire) 0-10” (Selectable 2.5, 5, 10"WC) 0-25” (Selectable 10, 15, 25"WC) 50° to 140°F (10-60°C) Dry, oil-free air, N2 Integrated, micro machined silicon piezoresistive
2.5% full scale Pushbutton and contact closure input provided
37
VARIABLE FREQUENCY DRIVES
DRIVE INSTALLATION A,B,C’s
A drive is a sensitive piece of power electronics that when installed properly will provide you with years of trouble-free operation. While our drives have many built-in protective features, if the installation or application is incorrect, failures due to improper protection or installation will not be covered under warranty. To avoid this ugly situation we have developed the Drive Installation A, B, C’s. Know these basic A,B,C’s with every drive you purchase.
Ambient Temperature: The maximum ambient temperature for a drive installation is either 40°C (104°F) or 50°C (122°F). Here are some recommendations to help keep your drive “cool”: 1. Derating for Temperature: If the drive is installed in an environment where the ambient temperature will be near or exceed 40°C or 104°F and the drive is rated for 40°C or the drive is in an enclosure and the ambient temperature will be over 90° F you will need to derate the drive to meet the temperature requirements. For our P, S and H series drive you can derate the drive 20% to increase the temperature rating by 20%. For example a 50 Hp P Series Drive which is normally rated for 40°C, when derated by 20% by use with a 40 Hp motor, can operate up to 50°C or 122°F. 2. Reduce the heat load on the Drive: Mount the drive or drive panel away from direct sunlight. 3. Exhaust and Intake Clearance: Make sure the drive is mounted in a place where the intake and exhaust air is free from obstructions and the intake air is not near another heat source such as transformers orheating elements. Never install one drive such that the exhaust from one blows into the intake of another. 4. Mount the drive in a Separate Enclosure: A simple step that can save a lot of headaches is to mount the drive separately from other electrical equipment. Just a few extra devices in an enclosure can add significant heat that can push the internal ambient temperature of the cabinet beyond what is acceptable for the drive.
Bonding Nothing is more important for a drive than proper grounding. Improper grounding can cause everything from unexplained shutdowns to erratic operation. Where we see the most problems with grounding are in remote locations (like an irrigation pump) or isolated installations such as cranes or roof tops for HVAC. There are three critical things to remember about grounding your drive: 1. Size of the ground cable. The ground bonding cable must be the proper size to meet the impedance requirements as specified in our manual. A good practice is to use the same size as your input power input. 2. Dedicated, direct cable. The grounding cable should be dedicated and as short as possible from the bonding point. Longer cable runs will require larger cable to meet the impedance requirements. This is where following the recommendations above will serve you well. Under no circumstances should you use a mechanical connection such as conduit or electrical cabinets for your ground source. 3. Bonding to the source input. Ideally the grounding and source input are electrically connected such as when there is an isolation transformer with a neutral to ground bonding point.
Clean Power, Correct Sizing & Clean Air Correct Sizing: How your drive performs is dependent upon sizing the drive properly for the application. Your load is either constant torque or variable torque. Most Cerus drives are dual rated - the variable torque rating is always higher capacity than the constant torque rating. Here are some examples of variable and constant torque applications:
38
Constant Variable Conveyer Belt Fan Most Mixers Pump Grinder Some Mixers Lathe 1.800.962.3787 www.cerusind.com
High Inertia Oil Pump Jack Centrifuge Any Flywheel Crane and Hoist
VARIABLE FREQUENCY DRIVES
The A,B,C’s: • Ambient Temperature- of the installation • Bonding- make sure your grounding is correct • Clean Power and Air flow- for proper cooling • Correct Sizing- for the application When sizing a drive you also must consider the inertia of the load. High inertia loads are hard to accelerate and decelerate. This resistance to speed change can cause the drive to trip out on DC overvoltage, as the inertia from the load reverses into the drive and causes the DC bus voltage to rise. When this happens the drive will trip on an overvoltage fault. Resetting the fault and putting the drive back in operation in this situation will void your warranty if done repetitively. In all such cases a dynamic braking unit with a dynamic breaking resistor should be used. Dynamic braking units are standard on many of our small drives and are optional on all of our larger drives. Correct Settings: To protect your drive and to insure proper operation, follow our quick start guide which includes settings for most applications. Clean Air: A drive that becomes coated with dust or debris cannot cool itself properly and will lead to premature failure of the drive. Make sure the drive has clean, dry air for cooling. If it is installed in an enclosure make sure to replace or properly clean the air filters once a month to make sure the drive runs at peak performance. Clean Power: The drive will need to be protected from input power problems and load related power issues (mainly due to long cable runs or bad utility power). There are unique issues regarding both input power and output power protection:
1. Input Power Surge Protection or Lightning Arrestor: Semiconductors on the front end of any drive have a very limited ability to withstand high voltage surges or spikes. While there is built in protection in the drive, it is preferable to have surge protection installed at the drive input source (the closer to the utility input the better). This way, any type of surge or spike is eliminated before it gets to the drive. See our drive accessories page for our recommended solutions. If your drive is going into a commercial building, often this type of protection has already been installed for other sensitive equipment such as computer servers or UPS equipment. 2. Input Line Reactor: As a rule of thumb, an input line reactor may be required when the drive is installed directly to the utility source and the utility KVA rating is 10 times higher than that of the drive rating. In more specific terms if the source impedance is lower than 2.5%, a line reactor is required. When installed, an input line reactor adds impedance between the source and the drive. This has two benefits- first it helps to filter the drive harmonics from the rest of the installation and in turn protects the drive from line noise and transients. Secondly, line reactor’s additional impedance reduces the voltage stress on the input power circuits caused by the drive operation. 3. Output Power Protection: In some cases you may need an output line reactor to protect the drive and motor from output related voltage spikes. Some applications that require this type of protection include:
• Downwell pump motors • Large motors above 100 hp • Motors with leads longer than 35’ or SO cords • Older motors or motors that are wound without “inverter duty” insulation. If you have a motor load that meets any of these conditions, please contact our customer service personnel for recommendations. There are no universal rules that can be applied with respect to output line reactors, despite what you may have heard. In any application, whether a line reactor is required is simply a function of physics with the motor winding, the switching voltage and power cabling. Every switch on or off from the output of the inverter transistor will cause a voltage overshoot that may be enough to exceed the insulation breakdown of the motor windings or exceed the transistor breakdown voltage of the inverter or both. Our staff is knowledgeable with most applications and can provide you with the correct recommendation for your specific situation. 39
22995 NW Evergreen Pkwy Hillsboro, OR 97124
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In addition to our top quality drives, we offer a wide variety of starters for constant volume applications.
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