Thyristor Power Controller - Multidrive 2PH, up to 2700A

Load......Normal resistive, Transformer coupled with normal resistive load types
Input......4-20mA, 0-10Vdc, 10K Pot, RS485 Comms 
Firing......Burst, Delayed Triggering
Voltage...24Vac to 690Vac 

 

Multidrive is a fully digital and universal Thyristor Power Controller designed to drive 2 legs of 3 phase resistive & transformer load types. Available in 19 Amp sizes from 45A to 2700A the Multidrive provides the user with optimum control of the process and ease of set-up & maintenance. The Front panel keypad & display allows total flexibility for the user with full configuration of the process & digital inputs types and firing & control modes, to suit the application. Real time values such as the Voltage, Current & Power can be read from the display. Internal quick-blow fuses as standard provide complete protection for the thyristor. Additional features such as current limit, profiling, heater break alarm and RS485 comms come as standard.

For 4 wire configurations see our Multidrive 3 Phase SCR Controller

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Overview

  • Thyristors suitable for normal resistance & transformer coupled with normal resistive loads
  • Current range - 45A, 75A, 100A, 125A, 150A, 225A, 275A, 400A, 450A, 500A, 600A, 850A, 1000A, 1400A, 1500A, 1850A, 2000A, 2400A, 2700A
  • Supply voltage up to 480V as standard, 600V & 690V available as option
  • Microprocessor based electronic circuit fully isolated from the power
  • Firing types include Burst Firing (BF), Delayed Triggering + Burst Firing (DT+BF)
  • Input signals from 4-20mA, 0-10V DC Linear input, 10K Pot or RS485 comms
  • Selectable control modes include V, VxI and external feedback selection
  • Current limit as standard including internal current transformer, fully adjustable via front panel keypad
  • Profiling of current limit via analogue input
  • Heater Break (HB) alarm to diagnose partial or total load failure with automatic setting, relay alarm output and front LED indication.
  • 4 configurable Analogue outputs, 4 Relay outputs and 6 Digital inputs as standard
  • Internal quick-blow fuses as standard
  • RS485 comms (Modbus Protocol) as standard
  • Critical Alarms monitor phase loss, rotation and provide Thermal Protection
  • Special design Heatsink with high dissipation value
  • IP20 protectionComplies with CE specification, cUL pending

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Technical Information

Voltage Power Supply
From 24V to 480V Max (Std) or 600V & 690V as option.
Voltage Frequency
47 to 70 Hz

Input

SSR 4:30Vdc 5mA Max (On ≥ 4Vdc Off ≤ 1Vdc);
Voltage input 0:10Vdc impedance 15 K ohm;
Current input 0:20/4:20mA impedance 100 Ohm;
Firing Mode
Burst Firing, Delay Triggering + Burst Firing
Auxiliary Voltage Supply
190:265Vac 8VA Max (standard) 90:130Vac 8VA Max
Heater Break Alarm
HB alarm adjustable via front panel or RS485 with possibility to set sensitivity. Relay output 0,5A at 110V
Mounting
Bulk-head mounting
Storage Temperature
-25 °C to 70 °C Max
Altitude
Over 1000m of altitude reduce the nominal current of 2% for each 100m
Humidity
From 5 to 95% without condense and ice

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Installation (Click on images for larger view)

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Documentation

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Videos

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