87
The AI voltage is too high.
Reduce the AI voltage to less than 12 V
Press the STOP/RESET key to reset or add a
power filter at the power input side
Main control board DSP
reading/writing error
Press the STOP/RESET key to reset and seek for
technical support
The nameplate parameters of the
motor are set incorrectly.
Set the parameters properly according to the
motor nameplate
When reverse running is inhibited,
reverse rotation auto-tuning is
performed.
Cancel the reverse running inhibition
Check P02.16 (upper limit frequency) and see
whether P02.17 is lower than the rated
frequency
Vector control with PG (or V/F control
with PG), encoder signal
disconnection
Check the encoder wiring and rewire
Undervoltage
during running
The servo drive is powered down
during running.
No home is found during home
searching.
Check whether there is home signal input on the
corresponding terminals
The speed feedback encoder
selection setting is not correct.
Avoid using the same speed feedback encoder
for two motors
The AI function selection setting is
not correct.
Avoid choosing the same function for different
AIs
Usage of process closed-loop is not
correct.
In vector control, torque limit (P05.13, P05.14)
and frequency reference (P02.04 or PLC stage
frequency reference) can not have process
closed-loop as the same source