189
Diagnostics and Troubleshooting
*Additional information at end of section
Error/Message Description Cause/Solution/Troubleshoot
no_PU
Power Unit Not
Ready
Control card is
powered up, but
the power stage is
not and not seen
by control card.
The Power Unit Not Ready message may occur due to
the following conditions:
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 identi ed.
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.
I_data Invalid Data Parameter outside of permissible limits
I_oPE Invalid Operation Change Mode from Run to Stop
Check LF.82 input status to ensure no inputs are active
To Next Page
Loading...
Need help?
General
