Mitsubishi Electric PURY-(E)P200, Service Handbook

Page: 218 / 362

[
IX
Troubleshooting ]
- 2
09
- HWE0713A GB
1. Error Code
ACCT overcurrent (H/W detection) (Detail code 102)
DCCT overcurrent (H/W detection) (Detail code 103)
Instantaneous overcurrent (Detail code 106)
Overcurrent (Detail code 107)
2. Error definition and error detection method
Overcurrent 94Apeak or 22Arm and above is detected (P250, EP200 models) OR 94Apeak or 35Arm and above is de-
tected (P300-P400, EP250-EP300 model and above) by the current sensor.
3. Cause, check method and remedy
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 283)
1. Error Code
Short-circuited IPM/Ground fault (Detail code 104)
2. Error definition and error detection method
When IPM/IGBT short damage or grounding on the load side is detected just before starting the inverter.
3. Cause, check method and remedy
In the case of 4250
In the case of 4255
Refer to section -7- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 283)
4250
Cause Check method and remedy
(1) Inverter output related Refer to IX [4] -7- (2) [1]-[4]. (page 285)
Check the IGBT module resistance value of the in-
verter board, if no problems are found.
(Refer to the Trouble shooting for IGBT module)
4250
4255
Cause Check method and remedy
(1) Grounding fault compressor Refer to IX [4] -7- (2) [2].(page 285)
(2) Inverter output related Refer to IX [4] -7- (2) [1]-[4].(page 285)
Cause Check method and remedy
(1) Grounding fault of fan motor Refer to IX [4] -7- (2) [5].(page 286)
(2) Fan board failure Refer to IX [4] -7- (2) [6].(page 287)