Drive Faults - KEB COMBIVERT F5 Reference Manual

Diagnostics and Troubleshooting

7.2 Drive Faults

Faults and errors, listed alphabetically. Additional troubleshooting of operational problems is listed in Section
7.3 and diagnostics solutions in Section 7.4.
Error/Message Alt. /
(NUM)
Abnormal Stop EBus
Bus
Analog Signal -
Failure* (157)
Base Block bbL
(76)
Brake Switch -
Failure* (151)
270
*Additional information at end of section
Description Cause/Solution/Troubleshoot
Indicates Parameters FB50 - 53 show the error count, service,
no serial and value of both serial ports X6C and X6D. If the
communication service is 99 and the error is 9, then there is a framing
between keypad or parity error. This could indicate if the baud rate is
operator and incorrect, telegrams invalid, or potentially loss of serial
controller communication due to noise.
Analog speed When US04 = Absolute Analog Speed (2), Bipolar
command not Analog Speed (3), the speed command must be received
present at the within t=2.5(LT01+LT03) sec. at beginning of run. Refer
beginning of a to additional information at end of section.
run.
This message Indicates the output transistors have been safely shut off
precedes most and are being blocked from further operation.
faults and
indicates the This generally indicates the drive enable input (I7) was
drive enable (I7) dropped prematurely or abruptly while the drive was still
was removed outputting current.
while the drive
was outputting This is not a drive error or fault, but a status message.
current. This is
not a drive fault.
Brake switch not When LI04-11 input is set as Brake Release
open/closed at confirmation, the brake switch must open at the
beginning/end of beginning of the run within t=LT01+LT03+2.5 sec and
run. close at the end of the run within t=LT10+LT12. Refer to
additional information at end of section.
Check setting of FB11 DIN66019 Fb Baud Rate.
Invalid serial telegrams being received.