Refrigeration controllers
EVX
Digital controllers for refrigerated cabinets that can be integrated in the unit
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Download now the set-up files for EVUSBREC01
EVX is a series of digital controllers for normal temperature or low temperature refrigerated cabinets that can be integrated both mechanically and aesthetically in the unit.
The series consists of 6 instruments: EVX201, EVX203, EVX204, EVX214, EVX205 and EVX215.
EVX201 has got:
- 1 analog input (cabinet probe) for NTC probes
- 1 digital input (door switch)
- one 16 res. A @ 250 VAC digital output (electromechanical relay) for the compressor management; the defrost is allowed stopping the compressor
- serial port with MODBUS communication protocol.
EVX203 has got:
- 2 analog inputs (cabinet probe and evaporator probe) for NTC probes
- 1 digital input (door switch)
- 3 digital outputs (electromechanical relays) of which one 16 res. A @ 250 VAC relay for the compressor management and two 8 res. A @ 250 VAC relays for defrost and evaporator
- fan management; the defrost can be electric or by hot gas
- serial port with MODBUS communication protocol.
EVX204, EVX214, EVX205 and EVX215 have got:
- real time clock (only in EVX214 and EVX215)
- alarm buzzer
- 3 analog inputs (cabinet probe, evaporator probe and condenser probe) for NTC probes
- 2 digital inputs (door switch and multipurpose)
- 5 digital outputs (electromechanical relays, 4 in EVX204 and EVX214) of which one 30 res. A @ 250 VAC relay for the compressor management and four 8 res. A @ 250 VAC relays
- for defrost, evaporator fan, load # 4 management (programmable as cabinet light, demisting heater, auxiliary output, alarm output, door heater, evaporator valve or condenser fan) and
- load # 5 management (this last only in EVX205, EVX215 and programmable just like load # 4); the defrost can be electric or by hot gas
- serial port with MODBUS communication protocol.
The devices look in open frame board for the full mechanical and aesthetics integration in the cabinet; the user interface is made of a 4 digits custom display (with function icons) and 6 buttons (set, up, down, defrost, cabinet light and on/stand-by).
Installation is by back-panel, with M3 threaded studs.
Through the real time clock it is possible to program up to 6 daily hours for the defrost activation and 1 daily hour for the "Energy Saving" function activation; function "Energy Saving" is also automatically activated, in absence of door switch input activations.
Through function "HACCP" it is possible to store up to 9 events (3 in the instruments without real time clock) for each of the 4 HACCP alarms (lower temperature alarm, upper temperature alarm, door switch input alarm and lack of power supply alarm, this last only in the instruments with real time clock); for each HACCP alarm it is possible to store the citical value, the date and the time the alarm has arisen (these last two only in the instruments with real time clock) and the duration.

Through the programming key EVKEY (to order separately) it is possible to make the upload and the download of the configuration parameters.
Through a serial interface (to order separately) it is also possible to connect the controller to the set-up software system Parameters Manager, to the plants monitoring and supervision one RICS or to the device for the data recording, for the recorded data download (via USB), for the upload and the download of configuration parameters EVUSBREC01 (via TTL, with MODBUS communication protocol).
Among the several features one also highlights:
- direct loads connection (but load # 5)
- overheated condenser alarm management on two levels
- defrost interval storing
- adaptative management of the defrost (the defrost interval is from time to time function of the evaporator conditions, through the continuous sampling of its temperature)
- temperature alarms management
- compressor working hours counter
- low or high relative humidity percentage operation
- function "overcooling"
- function "lock keyboard".

EVCO S.p.A. | Last update 11 April 2012 | Contact us | Webmaster