Power Controller

Thyristor Power Controller Multidrive 2PH up to 2700A 3 wire / 24Vac to 690Vac Supply / 4-20mA or 0-10V DC linear inputs, 10K Pot or RS485 Comms input / Burst Firing, Delayed Triggering + Burst Firing.

Ideal for: normal resistive & transformer coupled with normal resistive load types

   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.

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