Mitsubishi Heavy Industries SRRM40HENG-L, Handbook, Page: 1084 / 1106

1082
FDC-HKXR
Is the current
cut function activated?
Is the insullaiton
resistance of the compressor (1)
proper?
NO
YES
YES
NO
YES
NO
YES
NO
Notes (1) When a short-circuit or ground-fault occurs
in the compressor motor, the current cut
function is also activated.
Notes (1) If the insulation resistance is 10M
Ω
or more,
it is normal.
Notes (1) The insulation resistance may considerably
drop depending on the refrigerant volume in
the compressor, but this is not faulty.
(2) 1-2 seconds after a start:
FDCP2001 type: Approx. 32 A
FDCP2501 type: Approx. 37 A
Defective inverter
(Refer to 1090 page)
Defective inverter
(Refer to 1090 page)
Defective compressor
Defective compressor
Disconnect the compressor wiring
Defective inverter
The compressor can operate
Is the output
voltage of the inverter
normal?
Isn't the stating
current (2) excessive?
When the compressor wiring is
performed, the unit can operate.
Current cut is indicated and the compressor cannot operate
Frequency
Model
All models
(outdoor unit)
35 Hz 40 Hz 65 Hz 75 Hz 80 Hz 95 Hz
95 ~ 98 104 ~ 107 167 ~ 173 180 ~ 190 195 ~ 197 198 ~ 203
Unit: V (AC) Inverter output voltage