Fault CrST ‐ Cannot reset
Cause The drive received a fault reset command when a run command was acve.
R
emedy Turn o the run command then de-energise and re-energise the drive.
Fault EF ‐ FWD/REV Run command input error
Cause A forward command and a reverse command were input at the same me for
longer than 0.5 second.
Remedy Examine the forward and reverse command sequence and correct the problem.
Fault HCA ‐ High current alarm
Cause The load is too heavy.
Remedy Decrease the load for applic
aons with r
epeve starts and stops.
Contact us.
Cause The acceleraon
me is too short.
Remedy Contact us.
Fault oH ‐ Heatsink overheat
Cause The airow is not enough ar
ound the driv
e.
Remedy Check cubicle fan.
Cause The drive internal fan has stopped.
Remedy Check whether it should be replaced.
Fault dWAL ‐ Warm up nish
Cause Warm up completed.
Remedy The pump has been warmed up completely, the inlet valve must be opened
manually
.
Fault dWA2 ‐ High temperature
Cause The stator reaches 120 °C which is very hot for stator.
Remedy Check cooling water.
07/2021 - ©Edwards Limited
Page 70A41870880_A
A41870880_A - Fault nding
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