75
Alarm
code
Description
Reasons
Solutions
communication
failure
establish communication successfully.
foreign matters in the
expansion card slot and
whether the pins in the
slot are intact.
881
Inverter
not
responding
Check whether the
parameters of the
inverter are correct.
890
Slave
state
machine
error
status
When the frequency converter is running, the
master station requests non OP status without first
closing the slave station.
Or the error code is displayed after the key is reset,
indicating that the key has no permission to reset
the error (it may be enabled by the master station)
Check whether it enters
non OP state during
operation.
If the reset key cannot
clear it, it is necessary to
check that the master
station is forcibly
enabling the operation
command.