Cause There is a loss of power.
Remedy Use a beer pow
er supply.
Fault Uv2 ‐ Control power undervoltage
Cause There was a problem with the drive hardware.
Remedy Re-energise the drive.
Cont
act us.
Fault Uv3 ‐ So charg
e answerback fault
Cause The relay or contactor on the so-charg
e bypass relay is damaged.
Remedy Re-energise the drive.
Contact us.
Fault EF3 ‐ External fault(terminal S3)
Cause Thermal overload relay tripped due to motor overheat.
Remedy Check the cooling water.
Fault dWFL ‐ High temperature warning
Cause The stator temperature reaches 130 °C.
Remedy Contact us.
Table 23
Inverter warning codes
Condion
bb - Baseblock on page 69
CrST - Cannot reset on page 70
EF - FWD/REV Run command input error on page 70
HCA - High current alarm on page 70
oH - Heatsink overheat on page 70
dWAL - Warm up nish on page 70
dWA2 - High temperature on page 70
Fault bb ‐ Baseblock
Cause An external baseblock command is entered through MFDI terminal S1 to S7 and
the drive output stopped as shown by an external baseblock command.
Remedy Examine the external sequence and ming of the baseblock command input.
07/2021 - ©Edwards Limited
Page 69A41870880_A
A41870880_A - Fault nding
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