GSK DA98D - Page 49

DA98D User Manual
38
8
Overflow
of
Position
Error
Meter
The mot① or get stuck by the
machinery.
Abnormal input command pulse.②
Examine the machinery part ①
of the load.
②Examine command pulse.
.③ Examine whether the motor
works after receiving command
pulse
Wrong connection of encoder. Examine wire connection.
Damaged encoder. Replace motor.
9
Encoder
failure
Bad encoder cable. Replace cable.
9
Encoder
Failure
Excessively long encoder cable
results in low power voltage of
encoder.
Shorten cable.①
Supply power with multiple ②
core wires connected in
parallel.
Low input control power. Examine control power.
10
Voltage
Shortage
in Control
Power
①Internal connectors of driver
have bad performance.
Abnormal switch power.②
Damaged chip.③
Replace ① drive unit.
Examine connector.②
Examine switch power.③
Occur when
switching on
control
power
Failure in circuit board. Replace servo drive unit.
①Excessively low power voltage.
②Overheating.
Examine ① drive unit.
②Re-electrify.
③Replace drive unit.
Short circuit between motor leads
of U, V and W.
Examine wire connection.
Bad ground contact. Correct ground contact.
Damaged motor insulation. Replace motor.
11
Encoder
Failure
Occur during
motor
operation
Be jammed.
①Add circuit filter.
②Keep away from jamming
source
Short circuit between motor leads
of U, V and W.
Examine wire connection.
Bad ground contact. Correct ground contact.
Damaged motor insulation. Replace motor.
12
Excessive
Current
Damaged driver. Replace drive unit.
Occur when
switching on
control
power
Failure in circuit board. Replace servo drive unit.
Operation by exceeding rated
torque.
①Examine load.
②Reduce start/stop frequency.
Reduce torque limiting value.
Replace it with drive unit and
motor of greater frequency
Hold brake cannot be opened. Examine the hold brake.
13 Overload
Occur during
motor
operation
Instable motor with vibration.
①Increase gain.
②Increase
acceleration/deceleration time.
③reduce load inertia.