Lenze 931K - Manual (Page 63)

Troubleshooting
and fault elimination
Table of error messages
9
l
63
KHB 13.0004−EN 2.1
Error
number Meaning Activation
time
Response Cause Remedy
A H W O
03 Motor overtemperature < 100 ms ю ю ю ¨ Motor overtemperature l Check if the motor cooling via the motor housing is
impeded as a result of deposits, etc. (if necessary, clean the
motor).
l Are there any other sources of heat near the motor that
may additionally increase the ambient temperature and
thus lead to a reduced heat loss dissipation?
l Check the controller settings, poor settings will lead to an
unnecessary heat generation.
l Reduce the load torque of the motor.
l Check the setting of the temperature sensor.
l Check the resolver and encoder cable for an open circuit.
l Check the resolver position adjustment.
04 Overtemperature/
undertemperature of the
power electronics < 100 ms ю ю − − Overtemperature/undertemperature of
controller l Check if the controller has been correctly mounted into the
control cabinet:
– Heatsink must have large−surface contact with the
housing of the control cabinet.
– If required, remove other sources of heat from the
vicinity of the controller.
l Clean the ventilation slots of the controller.
l Optimise the controller settings (poor settings will lead to
an unnecessary heat generation).
l Carry out a resolver position adjustment.
l Reduce the load torque of the motor.
05 SinCos supply error < 5 ms þ − − − Resolver or SinCos encoder error, reliable
detection only possible after approx. ½
motor revolution l Check resolver plug connection.
l Check resolver cable for open or short circuit.
l Check pin assignment of resolver cable plug.
l Correct encoder parameters.
06 SinCos−RS485 communication
error < 5 ms þ − − −
07 SinCos track signal error < 5 ms þ − − −
08 Resolver, track signal error or
carrier failure < 5 ms þ − − −
09 5V−electronic supply error < 5 ms þ − − − Angle encoder/ Hall−effect sensor
defective. Replace encoder.
Collapse of supply voltage due to a wiring
error on X2 Check the wiring.
l Error on techno module X8.
l Voltage supply failure.
Send the controller in for repair.
10 12V−electronic supply error < 5 ms þ − − − Angle encoder or SinCos encoder defective. Replace encoder.
Collapse of supply voltage due to a wiring
error on X2 Check the wiring.
Voltage supply failure. Electronic error on the controller. Send the controller in for
repair.