Compressor pack controllers

Front panel protection: IP65.
Container: Plastic, with a degree of
self–extinguishing UL94–V0.
Size: front panel 32x74 mm, depth 70 mm.
Mounting: panel , with 71x29 mm hole.
Usage temperature: –5…60 °C.
Storage temperature: –20…85 °C.
Usage temperature: –5…60 °C.
Storage temperature: –20…85 °C.
Use environment humidity*: 10…90 % RH.
Storage environment humidity*: 10…90%
RH.
*(not condensing)
Suction analogue input: NTC temperature
probe or 4…20 mA for the pressure probe
which can be set by parameter.
Condensation analogue input: 4…20 mA
for the pressure probe.
Digital inputs: 7 digital inputs for low and
high pressure alarms only, remote ON/OFF
and four generic alarms for the compres-
sor.
Digital outputs for compressors: 4 relays,
at 2(2)A 250V a .
Alarm output: 1 triac output, 24
V c /500mA max (for the EWCM 412 ver-
sion only), or one relay 2(2)A 250V a (for
the EWCM 415 version only).
Analogue output: 1 PWM output for man-
aging a condenser control board (for the
EWCM 412 version only).
Inverter output: analogue output 4…20
mA or 0…10 V, which can be chosen by
parameter, for direct management of an
inverter module (for the EWCM 418 ver-
sion only).
Serial output: on a TTL port to quickly
program with Copy Card, or for connect-
ing with a remote–operated system.
Communication protocol: Televis® or
ModBUS–RTU protocol.
Suction probe resolution: 0.1 °C for the
NTC temperature probe, 0.1 bar or 0.01
bar for the suction pressure probe (which
can be configured by parameter).
Condensation probe resolution: 0.1 fixed
bar.
Accuracy: 0.8 °C in the 0…35 °C range for
the temperature sensor, 1% on the end of
scale value for the pressure sensor.
Power supply: 12 Va/c ±10%, 50/60 Hz
Power: 5 VA.
Insulation Class: I
The instrument must be powered with a
suitable current transformer with the fol-
lowing features:
•Primary voltage: 230V~ ±10%; 110V~
±10%
•Secondary voltage: 12V~
•Power supply frequency: 50Hz; 60Hz
•Power: 5W.