47
-40
-20
0
20
40
60
80
100
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Diagram indicating appox error
Electrical features
Power supply
Voltage supply range:
24 - 15%... + 10% 50/60 Hz (20.4V~26.4 Vac)
Maximum power absorbed by the device:
3W
Characteristics of the fuse (obligatory)
to be inserted in series to the unit power supply:
315mAT
Power driving
Below, as “Group A” is defined the grouping
of the following outputs:
valve, pump, compressor, resistance
Max. current for each power connector:
2A
Relay output current* (each relay, resistive load):
2A 250 V~
Relay output current* (maximum 1 relay, resistive load): 3A 250 V~
Switching maximum number (each relay):
10 s (it is machine manufacturer’s duty into which the device is
integrated to ensure the proper configuration of the machine in
order to comply with this specification)
Type of relay action-microswitching:
1C
insulation between the relays of the group A:
functional
ins. between the group A and the very current:
reinforced
ins. between the relays of the group A
and the signalling relay:
principal
ins. between the signalling relay
and the very low voltage:
reinforced
insulation between the relays and the frontal:
reinforced
* If higher output currents are required, please contact Carel srl.
Note: All the relays of the Group A must have the same connections as indicated on the diagram.
Digital inputs:
Electric standard:
clean contact
Make current referred to ground:
4.5 mA
Make maximum resistance:
50
Ω
Analog inputs:
Temperature probes are usable:
Carel NTC probe (the response time depends on the component
being utilised, typical value: 90 seconds)
Pressure probe connection:
through Carel converter
Analog output:
Fan output waveform:
grid frequency, selectable: pulse-amplitude modulation, or pulse-
position modulation, with selectable amplitude.
The output is intended for the connection of the MCHRTF***0,
CONVONOFF0 and CONV0/10A0 Carel driving-modules, for the
control of variable and fixed speed fans.
Fan output open-circuit (referred to ground):
4.8V±10%
Fan output ground short-circuit current:
30mA
Minimum output load:
1k
Ω
Electrical stress across isulating parts:
long period
Immunity of the device against overvoltage:
category 1
The output waveform selection is obtained thorough parameters as described in the user manual of the device.
Functional features
Precision:
Resolution in the -20°C~+20°C measurement range:
0.1°C
Res. in the -40°C~ -20 °C and +20°C~ +80 °C measur. range: 1°C
Temp. measur. errors in the -20°C~ +20 °C measur. range:
±0.5 °C (probe excluded)
Temp. measur. errors in the -40 °C~ +80 °C measur. range:
±1.5 °C (probe excluded)
Pressure measurement errors, input 0.64~3.2 V:
2% (probe and converter excluded)
10. µchiller compact technical specifications
Summary of Contents for mchiller compact
Page 1: ...chiller compact Manuale d uso User guide...
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