Installation manual

[ IX Troubleshooting ]
- 225 -
HWE10040 GB
4250?425 0 4255
1. Error Code
IPM error (Detail code 101)
2. Error definition and error detection method
In the case of 4250
Overcurrent is detected by the overcurrent detection resistor (RSH) on the INV board.
In the case of 4255
IPM error signal is detected.
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
4255
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)
Cause Check method and remedy
(1) Fan motor abnormality 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)