Installation manual

[ IX Troubleshooting ]
- 226 -
HWE10040 GB
1. Error Code
Instantaneous overcurrent (Detail code 106)
Overcurrent (Detail code 107)
2. Error definition and error detection method
P200, P250, and EP200 models
Overcurrent 94 Apeak or 22 Arms and above is detected by the current sensor.
P300 - P450, EP250, and EP300 models
Overcurrent 94 Apeak or 35 Arms and above is detected by the current sensor.
3. Cause, check method and remedy
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 285)
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 -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.(page 285)
4250
Cause Check method and remedy
(1) Inverter output related Refer to IX [4] -6- (2) [1] - [4].(page 287)
Check the IGBT module resistance value of the INV board, if no
problems are found.
(Refer to the Trouble shooting for IGBT module)(page 290)
4250
4255
Cause Check method and remedy
(1) Grounding fault compressor Refer to IX [4] -6- (2) [2].(page 287)
(2) Inverter output related Refer to IX [4] -6- (2) [1] - [4].(page 287)
Cause Check method and remedy
(1) Grounding fault of fan motor Refer to IX [4] -6- (2) [5].(page 288)
(2) Fan board failure Refer to IX [4] -6- (2) [6].(page 288)
(3) Electromagnetic contactor (52F) actuation failure
(P450, EP300 only)
Check the wiring between the FAN board, 52F, and
fan motor. (page 277)