8 Troubleshooting
225
SMGB0064 rev.0 - 08/2011
8
RAS-(4-6)HRNM2E
Faulty PCB3/ISPM
Replace PCB3/ISPM
Faulty ISPM
Replace ISPM
Check de wiring, ISPM and
the capacitors (CB1,2) *2)
In the case the wiring is
correct, replace ISPM
Compressor stops
immediately (lower than
30 Hz)
Compressor stops when
frequency increases
(approx. 30 Hz to 60 Hz)
Is the voltage over 340V
during the operation?
No
Yes
Does the voltage fall during
the operation because of the
operation of other apparatus?
Does LED201 on
ISPM is ON?
Is the connection between ISPM
and reactor (PCL) with capacitors
(CB1, 2) or CMC?
Is the DC voltage over
460V?
Frequency can increase
higher than 60 Hz
How is the
compressor
operation?
Connect correctly
Check capacitors (CB1, 2)
Replace the capacitors
Capacitors have high voltage.
Be extremely carefull *1)
Check the wiring and the
cable capacity
Restart the operation
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes Faulty
Normal
Be extremely carefull because of the
high voltage
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