Topcnc SD300, Instructional Manual

Page: 65 / 104

Chapter 5 Protection
Features
Alarm code Alarm
name
Operating
status
the reason Approach
15
Encoder
count error

The encoder is damaged.

The number of encoder lines
is incorrect.

The encoder disc is damaged.

The encoder has a false z
signal (multiple z pulses in
one revolution).
Replace the encoder.
The encoder is wired incorrectly. Check the wiring.
Poor grounding.

Ground properly.

Check if the shield
ground wire is
connected.
16
Motor
thermal
overload Switch on
control
Appears
when power
The board is faulty. Replace the servo drive.
The parameter setting is incorrect. Set the relevant parameters
correctly.
Appears
during
motor
operation Long-term operation exceeds rated
torque.

Check the load.

Reduce the start and
stop frequency.

Reduce the torque limit
value.

Replace high power
drives and motors.
Poor mechanical transmission. Check the mechanical part.
17
Brake
average
power
overload The input AC power is high. Check the power supply
voltage.
Regenerative braking energy is too
large.

Reduce the start and
stop frequency.

Increase the
acceleration/deceleration
time.

Reduce the torque limit
value.

Reduce the load inertia.

Replace the larger
power drive and motor.
19
Hot reset The input control power supply is
unstable.
Check the control power.
Being disturbed.

Increase the line filter.

Keep away from sources
of interference.