174
Diagnostics and Troubleshooting
*Additional information at end of section
12.3 Drive Faults
Faults and error, listed alphabetically. Additional troubleshooting of operational problems is listed in Section
12.1 and diagnostics solutions in Section 12.2.
Error/Message Description Cause/Solution/Troubleshoot
bbL
Base Block
This message
precedes most
faults and
indicates the drive
enable (X2A.16)
was removed
while the drive
was outputting
current. This is
not a drive fault.
Indicates the output transistors have been safely shut off
and are being blocked from further operation.
This generally indicates the drive enable input (I7) was
dropped prematurely or abruptly while the drive was still
outputting current.
This is not a drive error or fault, but a status message.
E.Cdd
Error Calculate
Motor Data
The inverter is
unable to learn
a value during
the Motor Learn
procedure or
during automatic
learn of the
encoder position
during each run.
Verify correct motor data is entered in LF10-17 and re-
try.
Make sure motor contactor is closing.
Make sure motor is wired correctly.
If the problem persists, contact KEB.
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