44
●
Inappropriately adjusted
motor operating current
If the set current is small, the
output torque also becomes
small, resulting in unstable
operation
●
Poor connection of the pulse
signal
●
The starting speed is too
high
●
The acceleration
(deceleration) time is too
short
●
Effect of noise
●
Small load
●
Return the motor operating current to the factory-set
value and check the operation
●
Check the controller and driver connections
●
Check the pulse signal specifications (voltage, width )
●
Set a lower starting speed at which the motor can be
started stably
●
Set a longer acceleration (deceleration) time at which
the motor can be started stably
Check the operation by connecting only the motor,
driver and controllers needed for operation
●
If effect of noise is confirmed, take an appropriate
action such as isolating the motor from the noise
source, redoing the wiring or changing the signal
cables to shielded wires
●
Reduce the motor operating current using the
adjustment potentiometer
Vibration increases if the motor’s output torque is too
large with respect to the load
Motor operation is
unstable
Excessive vibration
Phenomenon
Possible cause
Remedial action