Internationalenglish_New_2012_chap9a by Workbox Communication AB

Control Systems

About Control Systems The control system is used for the starting and stopping of the vacuum producer, turbo pump or high pressure fan. They also control ﬁlter cleaning and give condition indications. In the system control panels, additional functions can be built in by selecting options. Control systems must be installed by a certiﬁed electrician. The control panels conform to electrical protection class IP 54 (IC529). Manufacturing standards conform to EN60204 (IEC204-1), VDE0113A2/381, DIN 57113A2. Main fuses and working disconnects are not included in the control panels.

Dimensions (base configuration) Measure

Height

Width

Depth

1 pump/fan 2.5–11 kW 1 pump/fan 15–22 kW 1 pump/fan 30–37 kW 2 pump/fan 2.5–11 kW 2 pump/fan 15–22 kW 2 pump/fan 30–37 kW 3 pump/fan 2.5–11 kW 3 pump/fan 15–22 kW 3 pump/fan 30–37 kW

600 700 800 800 760 1000 1000 1200 1200

380 500 600 600 760 800 800 800 1000

210 250 250 250 300 300 300 300 300

System Control Panels Select conﬁguration of system control panel by optional additional digits. Example System Control Panel Standard (IP54, painted cabinet) 1 pump 18.5 kW 400 V, 50 Hz Solenoid valves 24 V AC Filter cleaning S 32000: After stop and man Airlock control 160 Clean out/Flush valves 2 pcs. Electronic clock/External signal: No Lighting + power point 230V 6A in cabinet

86 ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ 861 ⎣⎤ ⎣⎤ ⎣⎤ 8611 ⎣⎤ ⎣⎤ 86119 ⎣⎤ 861196 861196 861196 861196 861196 861196 861196

⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ 1 ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ 15 ⎣⎤ ⎣⎤ ⎣⎤ ⎣⎤ 151 ⎣⎤ ⎣⎤ ⎣⎤ 1512 ⎣⎤ ⎣⎤ 15120 ⎣⎤ 151202

System control panels are always delivered with • • • • • • • • • • • • •

Main switch All condition indications and manoeuvres on display at front PLC-control Motor circuit breaker Function for start and stop of pump/fan with soft start Pulse control for ﬁlter cleaning Start from external signal, prepared for intermittent run (10 min stop delay) Manual start on display Timers for ﬁlter cleaning and intermittent run can be altered on display Connection of thermal protection (pumps of 11 kW and more) Condition indications and alarms on display Start on demand for lag pumps/fans (panels for 2 and 3 vacuum producers) Signal for shutter valve shutting at start (fans)

9 All condition indications and manoeuvres on display at front of system control cabinet.

Control Systems

Control Systems for USA/Canada System Control Panels Base System Control panels are configured with; • • • • • • • • • •

Lockable Main disconnect Fusing on main feed and control fusing LED Indicators Pilot Devices for Operation Direct magnetic motor starter Motor overload protection Pulse control for ﬁlter cleaning PLC Control Connection for Turbo pump Thermal KLIXON NEMA 12 Enclosure

Dustcontrol maintains a policy of active development for controls and control systems and recognizes that there are more ”special control” conﬁgurations available than basic. The basic panel conﬁguration above is the minimum required for the basic operation of an extraction system. When your requirements, or the requirements of the system, become more complex, we will be there. We can customize a control solution for you, from basic to complex multiple system architectures and everything in-between.

Dustcontrol USA supplied electrical control panels are UL listed and bear the serialized UL mark listing. Dustcontrol Canada supplied electrical control panels are CSA approved and bear the CSA mark.

• Touch Screens Touch Screens can be added to a system control to give the operator more input/output capability. A standard black and white screen can be used to replace indicator lamps and pilot devices and is easily justified on a cost basis. Larger and higher resolution color screens let us program more enhanced feedback for the user and allow the user access to parameters that would not be available from PB’s and indicator lamps. Access to different parameters can be password protected, supervisors can adjust filter cleaning directly, for example.

Some examples of options available: • Reduced Voltage Starters Sometimes referred to as a soft-start. These devices are pre-progammed to give a gradual application of voltage as a motor starts. They usually slow the motor start to 5 or 10 seconds and reduce the current in-rush to the motor. This results in less stress on electrical and mechanical parts and contributes to enhanced reliability of motors, starter components, overloads and the vacuum producer. Let us show you the beneﬁts. • Variable Frequency Drives Commonly referred to as VFD’s or drives. These devices allow us to program and control the behavior of the motor. The available parameters in a VFD let us, not only soft start your vacuum producer, but provide a whole range of operational parameters to make your system smarter. VFD’s can be demand controlled by a PLC to provide vacuum production on demand. Ramp up when the system usage requires it and idle back to save you energy when system utilization is low. As well as the enhanced control, VFD’s provide an un-paralleled degree of feedback for trouble shooting and power quality diagnostics

100

• Sensors Dustcontrol can use many diﬀerent types of sensors in the extraction system to inform the control and operators of diﬀering system conditions. • • • • • •

Proximity Sensors - monitor levels in silos. Ultrasonic sensors - monitor ﬁlling levels in containers. Temperature sensors - monitor motor, pump and exhaust temp. Flow sensors - control velocity and ﬂow rate. CT Coil - montior current demand on a vacuum producer. Inductive Position Sensors - feedback on an object’s position

• Network Ready Architecture: we can program the PLC to be network ready and have access to the World Wide Web. Web access ads a whole range of possibilities; remote monitoring, remote diagnostics and software upgrades over the web.

Control Systems

System Control Panel

Starter Starter for manual or microswitch start Part No 8117, 2.5 kW, 400 V Part No 8119, 2.5 kW, 230 V Part No 8132 Starter for microswitch or manual start and function for automatic filter cleaning.

101

Control Systems

DC Green System Why not reduce your carbon footprint and at the same time cut your costs?

Dustcontrol´s patented DC Green System is a system for the control of vacuum producers that helps to save energy. The DC Green System together with our vacuum producers (radial blowers and turbo pumps), can potentially oﬀer you an energy saving with existing or new Dustcontrol vacuum producers of between 40 and 90 percent. Depending on the number of open outlets, the RPM of the vacuum producer is optimized by the DC Green System, generating just as much vacuum as needed. By using a sophisticated on-demand control with a frequency converter, the maximum performance is also increased compared to a normal system. When no outlets are open the vacuum producer automatically switches to a saving mode. This eliminates the need for electrical microswitches at each work station. Depending on individual cases and the current market price of electricity; payback time for the purchase of the DC Green System is generally between 1-5 years. In summary, lower energy consumption contributes to economic savings, less environmental impact and an increased life span of the equipment. Your Dustcontrol contact can calculate the estimated saving in your case.

• Lower power consumption • No micro switches • Higher peak performance • Optimum suction performance at all times • Increased lifetime of the vacuum system DC 11-Module with DC Greensystem 102

Control Systems

Traditional Vacuum System Part of total working hours

Number of users

Dustcontrol DC Green Systemâ&#x201E;˘ Part of total working hours

Number of users

103

Control Systems

Selections, DC Green System

CATEGORY 1 Standard

Electrical Supply

Extras

Power

El. Clock/External signa

Vacuum Producer

Shutter valves

Discharge

Filter Cleaning

Voltage Solenoid Valves

FILTER CLEANING 1

VACUUM PRODUCER 1 pump