Table 58
Inverter alarm codes
Inverter alarms
Bit set
Fault code
combinaon
PDT reported fault name Descripon
1
8 ACCELERATION_TO
If the motor has not accelerated to a
minimum speed of 10 Hz within 60 seconds
then the drive will try to restart three mes
before giving alarm
4 OVERLOAD_TO
Alarm given when the dry pump speed is
below 7 Hz for 3 minutes or 30 minutes for a
booster.
2 SC_MODE_INTERLOCK Internal fault, contact us.
1 FLASH_DOWNLOAD_ FAULT Internal fault, contact us.
2
8 POST_FAULT Internal fault, contact us.
4 OSTEST _FAULT Internal fault, contact us.
2 EEPROM_FAULT Internal fault, contact us.
1 PWM_TRIP
Inverter output switched o - acve when
the drive is not running. Restart the pump or
cycle the power to reset.
3
8 MISSING_PHASE_ TIMEOUT
Indicates a missing input phase. Check power
connecons to the pump and fuses in supply.
Warning should appear rst and then the dry
pump trips aer 10 minutes and the booster
trips aer 30 minutes.
4 EMS
EMS has been acvated.
Check EMS buon at the front and EMS plug
in the back of pump controller.
2 DESAT_FAULT Internal fault, contact us.
1 UNDERT
Inverter is too cold. See warning register to
determine the source of problem.
4
8 OVERT
Motor/drive system over temperature. Refer
to warning code to determine source. Check
cooling.
4 OVERI Motor overcurrent
2 OVERV Inverter overvoltage
1 Reserved Reserved
Page 171
M58800880_H - Fault nding