GSK DA98A - Page 47

DA98A AC Servo Drive Unit User Manual
37
Occuring as control
power supply is
powered on
Circuit board fault
Change the AC
servo drive unit.
① Motor U, V, W lead
wires are wrongly
connected.
② Lead wires of
encoder cable are
wrongly connected.
Connect the wires
correctly.
Encoder fault
Change the servo
motor.
The position
out-of-tolerance
detecting range is too
small.
Increase the
detecting range.
The position
proportional gain is too
small.
Increase the gain.
Torque is not enough..
① Check the
torque limit.
② Reduce the load
capacity.
③ Change the
drive unit and
motor with larger
power ones.
4
Position
out-of-tolerance
Motor doesn’t run after
the main power supply
and control circuit are
connected and
instruction pulse is input
Instruction pulse
frequency is too high.
Reduce the
frequency.
Circuit board fault Change the AC
servo drive unit.
Occuring as control
power supply is
powered on
①Cable is broken off.
②Internal temperature
relay of motor is
damaged.
① Check the cable.
② Check the motor.
Motor is overloaded.
① Reduce the load.
② Reduce the
on-off frequency.
③ Reduce the
torque limit.
④ Reduce the
related gain.
⑤ Change the drive
unit and motor
with larger power
ones.
5 Motor overheated
Occuring as motor is
running
Motor internal fault
Change the servo
motor.
Motor is mechanically
locked.
Check the loading
mechanical part.
6
Saturation fault of
speed amplifier
Occuring as motor is
running
Load is too large.
① Reduce the load.
② Change the drive
unit and motor
with larger power
ones.