KEB COMBIVERT F5 Reference Manual page 287

Error/Message Alt. /
(NUM)
no Error nEOL2
Overload Low (20)
Speed
no Error Motor nEdOH
Overheat (11)
no Error nEOL
Overload (17)
Power Unit Not no_PU
Ready (13)
Serial (166)
Command
Speed Error
*Additional information at end of section
Diagnostics and Troubleshooting
Description Cause/Solution/Troubleshoot
No more Error Overload Low speed has cleared and can be reset.
overload.
Over temperature Motor overheat sensor reset and Error Motor Overheat
reset possible can be reset.
No more Overload counter has reached 0%, allowing motor to
overload. cool and the error overload error may be reset.
Control card is The Power Unit Not Ready message may occur due to
powered up, the following conditions:
but the power
stage is not, so
consequently it
is not seen by
control card.
Serial speed When US04 = Serial Speed DIN66019 Service 49
command not (4), Serial Speed DIN66019 Service 50 (5), the speed
present at the command must be received within t=2.5(LT01+LT03) sec.
beginning of a at beginning of run. Not active on inspection run.Refer to
run additional information at end of section
Control card powered up by external power supply, but
drive is not powered up by line. Since the drive is not
being powered by the line, the power stage cannot be
identified.
Connection issue between control card and power
stage.
For inverter housing sizes G, H, R, U, remove
then reconnect the ribbon cable connecting the
control card to the power stage at the control card
connection.
For inverter housing sizes D, E, remove the control
card then re-seat, ensuring pin connections.
Switching power supply.
If reseating the ribbon cable does not resolve the
issue, then there may be a failure of the switching
power supply and the drive would need to be
replaced or inspected and repaired by KEB.
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