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Danfoss AK-PC 781A User Manual

Danfoss AK-PC 781A
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134 Capacity controller RS8HE202 © Danfoss 2017-07 AK-PC 781A
Appendix B - Alarm texts
Settings Priority
(factory)
English alarm texts Description
Suction group
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/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/Pctrl 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
Pctrl sensor error Pressure transmitter signal from Pctrl is defective
Sgc sensor error Temperature signal from gas cooler is defective
Prec sensor error Pressure transmitter signal from the receiver is defective
Pgc sensor error Pressure transmitter signal from the gas cooler is defective
Misc. sensor error Medium
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
Stw sensor error Temperature signal from hot water circuit is defective
Shr sensor error Temperature signal from heat circuit is defective
Saux_ sensor error Signal from extra Temp.sensor Saux_ is defective
Paux_ sensor error Signal from extra pressure sensor Paux_ is defective
All compressors
Common safety High Common compr. Safety
cutout
All compressors have been cut out on common safety input
Comp. 1 safety
Comp. 2 safety
Comp. 3 safety
_________________
Comp. 10 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 FCD safety error Variable speed drive for comp. x has been cut out on safety
Comp. Low oil lvl Medium
Low oil level comp. x Oil level too low in compressor x
Comp. High oil lvl Medium
High oil level in compressor x Oil level too high in compressor x
Separator alarms
Medium
Low oil in separator x Oil level too low in separator x
No oil separated sep. x No oil in oil separator x
To high oil in separator x Oil level too high in separator x
Remaining oil separator x Separator x can not be emptying total for oil
Receiver alarm
Medium
Oil recv. high level Oil level too high in receiver
Oil recv. low level Oil level is too low in receiver
Rec. high pressure Medium
Recv. High pressure alarm Pressure too high in receiver
Rec. low pressure Medium
Recv. Low pressure alarm Pressure too low in receiver

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Danfoss AK-PC 781A Specifications

General IconGeneral
BrandDanfoss
ModelAK-PC 781A
CategoryController
LanguageEnglish

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