- 144 -
not rotate after
the AC drive
runs.
drive and motor is normal.
Related AC drive and
motor parameters
Are set improperly.
Restore the factory parameters
and re-set the following
parameters properly:
Encoder parameters
Motor ratings, such as rate
motor frequency and rated
motor speed
Motor 1 control mode (P0-01)
and command source
selection (P0-02)
P3-01 (torque boost) in V/F
control under heavy-load start.
Cable connection between
drive board
And control board is in poor
contact.
Re-connect wirings and ensure
secure connection.
The drive board is faulty.
Contact the agent
7
S terminals are
disabled.
Related parameters are set
incorrectly.
Check and set parameters in
group F4 again.
External signals are
incorrect.
Re-connect
external
signal
cables.
Jumper across OP and +24 V
becomes
Loose.
Re-confirm the jumper bar
across OP and +24 V.
The control board is faulty.
Contact the agent.
8
Motor speed
does not rise in
FVC control.
Encoder is faulty.
Replace
encoder
and
re-
confirm cable connection.
Encoder connection is
incorrect or in poor
Contact.
Replace the PG card.
PG card is faulty.
Contact the agent
Drive board is faulty.
9
The AC drive
detects over
current and over
voltage
Frequently.
Motor parameters are set
improperly.
Set
motor
parameters
or
perform
motor
auto-tuning
again
Acceleration/deceleration
time is improper.
Set
proper
acceleration/deceleration time.