16
F4-S Instuction Manual
Cooling down phase
completed
Overheat
Overheat cleared
Charging relay error
After an E.OL error you must wait for the inverter to cool down. This
message appears after the cooling down phase is completed. The
E.OL error can only be reset after this message is displayed.
Removing the supply voltage will not defeat the cool down period;
leave supply voltage on until message is displayed.
Occurs, when the inverter heat sink temperature is greater than 158°F.
Occurs when resistance between "OH terminals becomes greater
than 1650 ohms.
Internal or external temperature has dropped to a safe level.
Error "E. OH" can be reset.
Occurs when the charging relay does not close after the DC bus voltage
reaches its normal operating level.
Possible Causes
- insufficient cooling
- insufficient cooling
- ambient temperature too high
- cooling fan (when installed) not functioning
Possible solutions
- observe proper mounting clearances
- clear heatsink of all dirt and debris
- install cooling device to reduce air temp below 113°F
- check for fan obstructions, blades should spin freely.
External Overheat
Possible solutions
- see solutions listed under E.UP
- replace unit with new unit and return old unit for repair
Possible Causes
- see causes listed under E.UP
- charge relay or charge resistor has failed
Possible Causes
- factory jumper loose (not using this function)
- ambient temperature around motor too high
- motor overload, see E.OC and E.OL causes
- Motor temperature sensor cable broken
Possible solutions
- tighten black jumper wire between OH terminals
- install cooling device to reduce air temp
- see E.OC and E.OL solutions
- repair cable
Error Diagnosis
