93
Drive Faults
Error/Message Alt. /
(NUM)
Description Cause/Solution/Troubleshoot
Error Initializa-
tion MFC
EInI
(57)
Control card pro-
cessor unable to
boot.
Replace control card.
Error Low Mo-
tor Current
Ebr
(56)
Error current
check.
Prior to every run
the drive sends
current to each
phase of the mo-
tor to verify the
connection. Af-
terward, the drive
applies magnetiz-
ing current (In-
duction Motors)
and monitors
whether the mo-
tor is magnetized
or not.
Possible causes for low motor current error during cur-
rent check:
Motor contactor contacts are burnt or damaged.
Bypass motor contactor (do not simply jumper!) to
test and replace as needed.
One or more motor leads is not connected.
Motor contactor is not closing or not closing in time
Bypass motor contactor or verify switching time.
Motor windings are damaged.
Measure motor resistance.
The phase current check can be bypassed by setting
LX08 = Magnetizing Current Check (Induction Motors
only).
If the error occurs when trying to run on open loop, in-
crease LC32 Low Speed Torque Boost; suggested value
is 5%.
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