Danfoss TTS300

Table 5-2 Compressor Fault Types
Compressor Status Fault Description
InverterTemperature ThemeasuredInvertertemperaturehasexceededthefaultlimit.
DischargeTemperature Themeasureddischargetemperaturehasexceededthefaultlimit.
SoftStartTemperature ThemeasuredSoftStarttemperaturehasexceededthefaultlimit.
LowSuctionPressure Themeasuredsuctionpressurehasexceededthefaultlimit.
DischargePressure Themeasureddischargepressurehasexceededthefaultlimit.
Instantaneouslock-out,pre-CC4.0.0.
3-PhaseOver-Current Thecalculated3phasecurrenthasexceededthefaultlimit.
Instantaneouslock-out,pre-CC4.0.0.
CavityTemperature Themeasuredcavitytemperaturehasexceededthefaultlimit.
LeavingFluidTemperature Thelowestacceptablemeasuredleavingfluidtemperaturehasbeenexceeded.
(RemovedfromCC4.X.Xsoftware)
PressureRatio Thecalculatedpressureratioofdischarge/suctionhasexceededthefaultlimit.
Bearing/MotorFaultActive IfaMotorFaulttypeoraBearingFaulttypeispresent,thentheBearing/MotorFaultActiveistriggered.Thisis
notanactualfault,onlyanindicationthatamotororbearingfaulttypehasoccurred.
SensorFault Ifthefollowingmeasuredtemperatures(in°C)orpressuresin(kPaabs)aresurpassed,asensorfaultistriggered:
InverterTemperature:>100or<0°C
CavityTemperature:>100or<-20°C
SuctionTemperature:>100or<-30°C
DischargeTemperature:>110or<-30°C
LeavingFluidTemperature:>100or<-20°C
SuctionPressure:>1200or<-30kPaabs
DischargePressure:>3500or<-30kPaabs
SCRTemperature ThemeasuredSCRtemperaturehasexceededthefaultlimit.
(FaultandAlarmremovedfromCC4.2.Xandlatersoftware)
LockOutFault Lock-Outfaultsrequirepowercycletoreset.
Instantaneouslockouts:
InverterError-CC4.X.X
DischargePressure-preCC4.0.0
3PhaseOverCurrent-preCC4.0.0
Ifany(oracombinationof)thefaultslistedbelowoccursmorethan3timeswithin30minutes,aLock-Outfault
occurs:
DischargePressure-CC4.X.X
3-PhaseOvercurrent-CC4.X.X
InverterTemperature
SCRTemperature
MotorOvercurrent
InverterError-preCC4.0.0
RotorStartingTorque
LowMotorBackEMF
WindingTemperature Themeasuredmotorwindingtemperaturehasexceededthefaultlimit.
HighSuctionSuperheat ThecalculatedSuctionSuperheatTemperaturehasexceededtheFaultlimit.
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Page 252 of 294 - M-SV-001-EN Rev. H 1/23/2023