Danfoss Turbocor TTS Series

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M-SV-001-EN Rev. G
Appendix B – Compressor Troubleshooting Flowcharts
This appendix contains flowcharts for Compressor Operation Troubleshooting ("Figure B-20
Compressor Operation Troubleshooting Flowchart (Sheet 1)") and Compressor Voltage
Troubleshooting ("Figure B-22 Compressor Voltage Troubleshooting Flowchart (Sheet 1)" on page
273.).
Figure B-20 Compressor Operation Troubleshooting Flowchart (Sheet 1)
Isthecompressor
operatingcorrectly?
IstheMainsvoltage
withinrange?
End
A
Yes
No
Yes
RepairMains
voltageproblem
No
AretheLEDsonthe
I/OBoardlit?
Canyou
communicatewithcompressor
viaMonitoringProgram?
Yes
AretheLEDsonthe
backplaneboardlit?
No
Is
themonitoringprogram
indicatingafault?
Yes
Areallbackplane
voltagesOK?
No
Yes
IsI/Lockcircuitopen?
Can
faultberesetbysetting
demand%toCycle
Demand?
No
Yes
D
E
H
No
Yes
No
F
No
G
Yes
B
C
Yes
No
Ensurecomm.Port
numberandslave
addressesare
correct
Start
See4.2.1CompressorFault
Troubleshooting‐Fault
Reset