Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 204

[7-6 Error Code Definitions and Solutions: Codes [4000 - 4999] ]
7-6-9 Error Code [4129] Detail Code 101
1. Error code definition
Converter error (Detail code 101)
2. Error definition and error detection method
Vdc ≥ 420 V or an overcurrent through the converter was detected during inverter operation.
3. Cause, check method and remedy
(1) Power-supply environment
(2) Wiring problem
(3) Power-supply board failure
7-6-10 Error Code [4129] Detail Code 102
1. Error code definition
Power supply signal sync error
2. Error definition and error detection method
Power supply sync signal cannot be detected during inverter operation.
3. Cause, check method and remedy
(1) Power supply error
(2) Coil problem
(3) Faulty wiring
(4) Wiring failure
Between TB01 and PS board CNAC
(5) PS board failure
BS_07_M
Cause
Cause
Check method and remedy
Check for an occurrence of a(n) (instantaneous)
power failure at the time of error detection.
Check that the power-supply voltage is between
198 V and 264 V (TB01).
Check the power supply voltage waveform for dis-
tortion.
Between FT001, FT002 (Terminal mounted on PS
board), and AC reactor (ACL)
If none of the items described above is applicable,
and if the trouble reappears even after the power is
switched on again, replace the PS board.
Check method and remedy
Check for an occurrence of a(n) (instantaneous)
power failure at the time of error detection.
Check that the power-supply voltage is 198 V or
above (TB01).
Check to see if the power-supply frequency is in
the range between 45 and 54 Hz (55 and 64 Hz)
(TB01).
Check the power supply voltage waveform for dis-
tortion.
Check for coil burnout.
(L101 and L102 mounted on the PS board)
Check fuse F111, F121
Confirm that the voltage at the PS board connector
CNAC (2-4 pin) is 198 V or above.
If none of the items described above is applicable,
and if the trouble reappears even after the power is
switched on again, replace the PS board.
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