Danfoss AK-CH 650 User Manual

108 Capacity controller RS8ER302 © Danfoss 2016-02 AK-CH 650
Appendix B - Alarm texts
Settings Priority
(factory)
English alarm texts Description
Suction group
Control mode Low Manual comp. cap. Control Manual control of compressors
Low suction pressure P0 Low Low pressure P0 Minimum safety limit for suction pressure P0 has been exceeded
High suction pressure P0 High High pressure P0 High alarm limit for P0 has been exceeded
High S4 temperature High High S4 temp. High S4 temperature
Low S4 temperature Medium Low S4 temp. Low S4 temperature
High/Low superheat Ss Medium
High superheat suction A Superheat in suction line too high
Low superheat section A Superheat in suction line too low
Load shedding Medium Load Shed active Load shedding has been activated
P0/S4 sensor error High
P0A sensor error Pressure transmitter signal from P
0
is defective
S4A sensor error Temperature signal from S4 media temp. sensor defective
Misc. sensor error High
S3 sensor error Temperature signal from S3 media temp. sensor defective
SsA sensor error Temperature signal from Ss suction gas temp. is defective
SdA sensor error Temperature signal from Sd discharge gas temp. is defective
Sc3 sensor error Temperature signal from Sc3 air on condenser defective
Heat recovery sensor error Temperature signal from Shrec heat recovery thermostat defective
Saux1 sensor error Signal from extra Temp. sensor Saux1 is defective
Saux2 sensor error Signal from extra Temp. sensor Saux2 is defective
Saux3 sensor error Signal from extra Temp. sensor Saux3 is defective
Saux4 sensor error Signal from extra Temp. sensor Saux4 is defective
Pump alarm Medium
Cold pump 1 alarm Cold pump 1 is defective
Cold pump 2 alarm Cold pump 2 is defective
Cold pump 1&2 alarm High
Cold pump 1&2 alarm Both cold pump 1 and 2 are defective
Frost protection High Anti freeze safety cutout All compressors have been cut out on common safety input
All compressors
Comp. 1 safety
Comp. 2 safety
Comp. 3 safety
_________________
Comp. 6 safety
Medium
Comp. X oil pressure cut out Compressor no. x has been cut out on oil pressure safety
Comp. x over current cut out Compressor no. x has been cut out on over current safety
Comp. 1 motor prot. cut out Compressor no. x has been cut out on motor protection safety
Comp. 1 disch. Temp cut out Compressor no. x has been cut out on discharge temperature safety
Comp. 1 disch. Press. Cut out Compressor no. x has been cut out on discharge pressure safety
Comp. 1 General safety cut
out
Compressor no. x has been cut out on general safety
VSD safety Medium
Comp. 1 VSD safety error Variable speed drive for comp. x has been cut out on safety
Condenser
Control mode low Manual cond. cap. Control Manual control of condenser
High Pc/Sd temp. High
High disch. temp. SdA Safety limit for discharge temperature has been exceeded
High pressure Pc High safety limit for condensing pressure Pc has been exceeded
Pc/S7 Sensor error High
PcA sensor error Pressure transmitter signal from Pc is defective
S7A sensor error Temperature signal for S7 media temperature sensor is defective
Detect blocked air ow Medium Air ow reduced cond. A The intelligent air ow monitoring of the condenser reports that a
cleaning is due
Fan/VSD safety Medium
Fan Alarm 1 Fan no. X is reported defective via safety input
Fan VSD alarm Variable speed drive for condenser fans has been cut out on safety

Danfoss AK-CH 650 Specifications

General

Brand	Danfoss
Model	AK-CH 650
Category	Controller
Language	English