GREE U-Match 5 SERIES UNIT SERVICE MANUAL
86
Troubleshooting
:
3.4.36 “PU” Charge Loop Error
Error display:
ODU mainboard, IDU wired controller and IDU receiver light board will display PU
Error judgment condition and method:
When the charge loop starts to get charged and the busbar voltage cannot reach the set value in a certain
period of time, then it can be judged that charge loop error exists. System will shut down for protection.
Possible reason:
■
Voltage of power grid is abnormal. Voltage is too low.
■
Drive board charge loop element is abnormal.
■Drive board busbar voltage sampling circuit element is damaged or drive chip busbar voltage sampling AD
terminal is abnormal.
Troubleshooting
:
PU
Charge loop error
Normal protection
Replace the drive board
Grid voltage is too low ?
YES
NO
Содержание U-Match 5 Series
Страница 30: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 27 Model GUD50W NhA T Model GUD71W NhA T GUD85W NhA T...
Страница 31: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 28 Model GUD100W NhA T...
Страница 32: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 29 Model GUD125W NhA T GUD140W NhA T...
Страница 33: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 30 Model GUD100W NhA X...
Страница 34: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 31 Model GUD125W NhA X GUD140W NhA X...
Страница 35: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 32 Model GUD160W NhA X...
Страница 36: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 33 3 1 2 Wiring Diagrams of IDUs Model GUD35T A T GUD50T A T...
Страница 40: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 37 Wall Mounted Type Model GUD71G A T Model GUD100G A T...
Страница 59: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 56 Troubleshooting...
Страница 78: ...GREE U Match 5 SERIES UNIT SERVICE MANUAL 75 Troubleshooting...
Страница 224: ...JF00303775...