AK-PC
572
User
Guide RS8KH202 © Danfoss 2019-03
19
Alarm list
Alarm text
Reason
Priority
setting
Default
value
General alarms
Standby mode (Main sw. OFF)
Alarm when control is stopped by internal or external Main Switch (DI input "Main Switch")
Standby mode
Normal
PoMT sensor error
Pressure transmitter signal from PoMT defective
Sensor error
Normal
PoLT sensor error
Pressure transmitter signal from PoLT defective
SsMT sensor error
Temperature signal from SsMT suction gas temp. defective
SsLT sensor error
Temperature signal from SsLT suction gas temp. defective
SdMT sensor error
Temperature signal from SdMT discharge gas temp. Sd defective
SdLT sensor error
Temperature signal from SdLT discharge gas temp. Sd defective
Pgc sensor error
Pressure transmitter signal from Pgc defective
Prec sensor error
Pressure transmitter signal from Prec defective
Sgc sensor error
Temperature signal from Sgc defective
Sc3 sensor error
Temperature signal from Sc3 defective
Output in manual mode
An output is set in manual mode
Output in MAN mode
Normal
Suction MT alarms
PoMT Low suction pressure
Minimum safety limit for suction pressure PoMT has been violated
Low pressure PoMT
Normal
LP safety switch cut out MT
Low safety limit for external low pressure switch has been violated (DI input "LP switch MT")
PoMT High suction pressure
High alarm limit for PoMT has been exceeded
High pressure PoMT
Critical
SsMT High superheat
Superheat in suction line MT too high (measured by PoMT and SsMT)
Superheat MT
Normal
SsMT Low superheat
Superheat in suction line MT too low (measured by PoMT and SsMT)
SdMT High discharge temp.
Safety prevention limit for SdMT discharge temperature has been exceeded (10K below safety limit)
High disch. temp.SdMT Critical
Comp. 1MT High disch. temp
Safety limit for discharge gas temperature has been exceeded
Compressor safety
cutout MT
Normal
Comp 1-3MT safety cut out
Compressor no. 1-3 MT has been cut out on general safety input (DI1, DI2, DI3)
Suction LT alarms
PoLT Low suction pressure
Minimum sikkerhed grænse for sugetryk PoLT er blevet koblet ud
Low pressure PoLT
Normal
LP safety switch cut out LT
Low safety limit for external low pressure switch has been violated (DI input "LP switch LT")
PoLT High suction pressure
High alarm limit for PoLT has been exceeded
High pressure PoLT
Critical
SsLT High superheat
Superheat in suction line LT too high (measured by PoLT and SsLT)
Superheat LT
Normal
SsLT Low superheat
Superheat in suction line LT too low (measured by PoLT and SsLT)
SdLT High discharge temp.
Safety prevention limit for SdLT discharge temperature has been exceeded (10K below safety limit)
High disch. temp. SdLT Critical
Comp. 1LT High disch. temp
Safety limit for discharge gas temperature has been exceeded
Compressor safety
cutout LT
Normal
Comp 1-2LT safety cut out
Compressor no. 1-2 LT has been cut out on general safety input (DI7, DI8)
Gas cooler alarms
Prec high alarm limit
Alarm from the receiver
High receiver pressure
High gas cooler pressure
Pgc registrer a too high pressure
High pressure Pc
Critical
Common fan alarm
A fan is reported as defective via the shared safety input (DI input "Fan Alarm")
Fan Alarm
Normal
Display alarm
EER31
See next page
Sensor alarms
Sensor alarms shut off automatically when the sensor has been O.K. for 10 minutes.
If you have corrected the sensor error and want to perform a manual, forced removal of the alarm, go to the “Alarm detail display”
Press and hold the “X” key for 2 seconds here.
