Bitzer ACP Link - Overview of Compressor Specific Alarms

96 CT-600-2
No. Alarm / warning description Related
function
Possible causes
151,
152,
153
Compressor 1, 2, 3: motor current
high
2.21 Motor current too high
High load (high suction pressure or discharge
pressure)
161,
162,
163
Compressor 1, 2, 3: discharge
superheat low
2.12 Liquid to compressor (suction or eco)
Compressor started cold (takes time to heat up)
171,
172,
173
Compressor 1, 2, 3: discharge
temperature change high
2.13 Sudden drop in discharge gas temperature
Liquid to compressor (suction or eco)
181,
182,
183
Compressor 1, 2, 3: motor start
start time
3.1, 3.5 Compressor start to start timer active
Compressor stop - start may not be possible
191,
192,
193
Compressor 1, 2, 3: start priority
zero
2.39 Start priority of compressor is zero in CTRL-page.
14.2 Overview of compressor specific alarms
No. Alarm / warning
description
Related
function
Possible causes
0 No Alarm 2.28
1 Serial Control Timeout 2.28 Communication to module lost.
Wiring fault communication cable.
Module not accepted on modbus due to parametrization
error.
24V supply issue to PLC/HMI.
2 Mains Failure 2.28
3 Envelope: SST Low, SDT
Low
2.28
4 Envelope: SST Low 2.28
5 Envelope: SST Low, SDT
High
2.28
6 Envelope: SDT High 2.28
7 Envelope: SST High, SDT
High
2.28
8 Envelope: SST High 2.28
9 Envelope: SST High, SDT
Low
2.28