User Manual | Temperature Controller Display HIB123 Part-No.: 3756766 Doc.-Version: I
Alarms
check coolant circuit
causes: defective pump/valves/hoses, defective flow sensor, soiled filter (if present)
Motor circuit breaker has triggered
open switch cabinet and reset motor circuit breaker
causes: live components or input voltage defective
check coolant circuit
refill the coolant up to the MAX-mark (tank)
causes: leakage, evaporation, defective level switch
Misc. error 1 (definition: see circuit diagram input
E03)
depending on the function
Misc. error 2 (definition: see circuit diagram input
E04)
depending on the function
KK 1 | Low temperature alarm
temperature less than absolute limit parameter A1
protection shutdown (defined by manufacturer)
causes: defective electrical connection to compressor, defective compressor or HGB-
valve
KK 1 | High temperature alarm
temperature greater than absolute limit parameter A2
protection shutdown (defined by manufacturer)
causes:
compressor system: defective electrical connection to compressor, defective compressor
or HGB-valve, refrigerant shortage, defective fan or throughput too low (air-cooled)
Water cooled: low flow rate of external water circuit
KK 2 | Low temperature alarm
temperature less than absolute limit parameter A41
protection shutdown (defined by manufacturer)
causes: defective electrical connection to compressor, defective compressor or HGB-
valve
KK 2 | High temperature alarm
temperature greater than absolute limit parameter A42
protection shutdown (defined by manufacturer)
causes:
compressor system: defective electrical connection to compressor, defective compressor
or HGB-valve, refrigerant shortage, defective fan or throughput too low (air-cooled)
Water cooled: low flow rate of external water circuit
KK 3 | Low temperature alarm
temperature less than absolute limit parameter A51
protection shutdown (defined by manufacturer)
causes: defective electrical connection to compressor, defective compressor or HGB-
valve
KK 3 | High temperature alarm
temperature greater than absolute limit parameter A52
protection shutdown (defined by manufacturer)
causes:
compressor system: defective electrical connection to compressor, defective compressor
or HGB-valve, refrigerant shortage, defective fan or throughput too low (air-cooled)
Water cooled: low flow rate of external water circuit
Phase sequence error (wrong rotating field)
check connection of phases L1-L2-L3
cause: defective phase sequence relay
check function of fan
causes: over temperature, overload, under-/overvoltage
Temperature sensor F5 (KK 2) | short circuit
check electrical connection to sensor F5, replace sensor F5
Temperature sensor F5 (KK 2) | cable break
check electrical connection to sensor F5, replace sensor F5
Temperature sensor F6 (tank / KK 3) | short
circuit
check electrical connection to sensor F6, replace sensor F6
Temperature sensor F6 (tank / KK 3) | cable
break
check electrical connection to sensor F6, replace sensor F6
Temperature sensor F1 (KK 1) | short circuit
check electrical connection to sensor F1, replace sensor F1
Temperature sensor F1(KK 1) | cable break
check electrical connection to sensor F1, replace sensor F1
Temperature sensor F2 (ambient) | short circuit
check electrical connection to sensor F2, replace sensor F2
Temperature sensor F2 (ambient) | cable break
check electrical connection to sensor F2, replace sensor F2
Communication error with display
check electrical connection, change display or controller
restart chiller (hard power reset)
contact service hotline if necessary
causes: under-/overvoltage, data storage error, software bug, defective controller
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General