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Ewcm Compressor Rack Controllers

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EWCM controllers provide a means of managing compressors in refrigeration plants, cutting energy-use to a minimum and protecting the system. The end-to-end, flexible solution can be adapted to fit multiple plant configurations. The new backup function guarantees continuous operation, with no additional external devices, in combined systems with inverter-piloted loads and relays, should an inverter failure occur.
Features include:

  • Dedicated energy-saving algorithms
  • Energy-saving function via digital inputs
  • Dedicated inverter-control algorithms
  • Suction and discharge set point management reflecting ambient conditions.
  • Backup function in the event of inverter failure.

 

EWCM 4180/CEWCM 9100 EOEWCM 9900 EO
Enclosure:Plastic casing, flame retardant grade UL94-V0PC+ABS UL94 plastic resin casing. V-0 13 DIN modules (227.5x110x60mm)PC+ABS UL94 plastic resin casing. V-0 18 DIN modules (315x110x60mm)
Mounting:Panel-mount 71x29mmDIN Omega bar supportDIN Omega bar support
Analogue inputs:
  • 2 4…20mA / ratiometric 0…5V /
  • 0…10V / NTC / D.I.
4 NTC/NTC extended/PTC/ D.I.+ 2 high precision current (4…20mA / 0…5V / 0…10V)
  • 4 NTC/NTC extended/PTC/
  • DI + 2 high precision current/ voltage (4…20mA / 0…5V / 0…10V) + 1 current/ voltage (4…20mA / 0…5V / 0…10V)
Digital inputs:7 SELV contacts
  • 10 voltage (100…240V~)
  • + 4 configurable voltage free
  • 14 voltage (100…240V~)
  • + 6 configurable voltage free
Analogue outputs:
  • 2 PWM – Open Collector
  • 0…10V / 4…20mA / 0…20mA*
voltage/current (0…10V/4…20mA)3 voltage/current (0…10V/4…20mA)
Digital outputs:
  • 5 SPST 2A 250V~
  • + Open Collector
  • 11 SPST 5(2)A 250V~
  • + 2 SPDT 8(3)A 250V~
  • 17 SPST 5(2)A 250V~
  • + 2 SPDT 8(3)A 250V~
Connections:TTL port for connection to CopyCard and TelevisSystem via optional module
  • TTL port for connection to CopyCard USB
  • RS-485 for connection to TelevisSystem and systems based on the ModBus protocol
  • TTL port for connection to CopyCard USB
  • RS-485 for connection to TelevisSystem and systems based on the ModBus protocol
Display:4 figure LEDLCD on external keyboardLCD on external keyboard
Clock:PresentPresentPresent
Power consumption:5VA max20W20W
Power supply:12V~ ±10% 50/60Hz100…240V~ ±10% 50/60Hz100…240V~ ±10% 50/60Hz