Danfoss VCH115 Application Manual page 25

Scroll compressors, VCH115 | Frequency converter
Check alarm #
#30
Motor phase
U missing
Check alarm #
#14
# resistance < 500 KΩ
Replace compressor and return it for
inspection if under warranty
© Danfoss | Climate Solutions | 2023.08
#31
Motor phase
V missing
Most probably
neither a drive or
compressor failure
Check the motor
cable and reset the
alarm
Earth
(ground) fault
Power OFF the unit
Disconnect power
cable at compressor
electrical box
Perform an insulation
resistance test on the
compressor with
'megger' tester. 500V
#32
Motor phase
M missing
# resistance > 500 KΩ
Replace drive and return it for inspection
if under warranty
AB392939083370en-000202 | 25