The new range of controllers for compressors rack

The new EWCM 13 DIN Rail range meets the need for technical upgrading of the previous EWCM 800/900 platform, supplementing the functions and extending its use to more complex applications. The new controllers are available with 13 DIN Rail power boards and keyboard with LCD graphic display.

The 13 DIN format power boards come in 4 models:

• EWCM8400 for managing up to 4 step compressors and/or inverter compressor;
• EWCM8600 for managing up to 6 step compressors and/or inverter compressor;
• EWCM8900 for managing up to 9 step compressors and/or inverter compressor;
• EWCM9100 for managing up to 11 step compressors and/or inverter compressor and condensing unit with step fans or inverter fan;

Main Features

• Compressor management: management of single or multiple step compressors, management of compressors of different power or inverter compressor
• Up to 1 refrigeration circuit control
• Proportional control, PID and Dead Band
• Selection of homogenous power compressors
• Master compressor management
• Algorithms for Energy Saving
• Two programmable Set Points: normal and reduced regime
• Dynamic suction Set Point
• Complete alarms management (self-diagnostics and alarms log)
• Alarms level (disabled, warning, alarm, blocking alarm) configurable by parameter for each single alarm
• Configurable safety relay for emergency in case of hardware failure
• Configurable relay for Blocking Alarm
• High pressure alarm prevention algorithms
• Alarms History management
• Analog output configurable 0-10V o 4-20mA
• Pressure Analog Inputs configurable 0-10V / 0-5V / 4-20mA
• Temperature Analog Inputs configurable NTC / PTC / Digital Input
• AUX control, Liquid Return Function and Defrost
• Schedule activities based on time
• Service function for manual reset of compressor working hours
  maintenance
• Service function for manual test of each output

Technical Specifications

• DIN Rail solution for the control module and remote keyboard for panel mounting
• Keyboard with backlit LCD graphic interface (128x64 pixels) fed by control
  module.
• up to 13 relays
• up to 1 analogue output
• up to 10 digital inputs
• up to 5 analogue inputs
• Power supply 100…240 Vac
• Built-in clock (RTC), with annual calendar battery backuped (Lithium battery)
• USB Copy Card for transferring data from/to PC
• Ethernet connectivity via WebAdapter external module for direct connection to PC
• RS-485 connectivity for connection to Televis System/ModBus RTU

Tecnical Data Sheet

  CT122263 EWCM Family IT  .zip file
  CT122262 Famiglia EWCM GB  .zip file
  CT122265 EWCM Reglerfamile DE  .zip file