Topcnc SD300, Instructional Manual

Page: 63 / 104

Chapter 5 Protection
Features
Alarm code Alarm
name
Operating
status
the reason Approach
8
Position
deviation
counter
overflow

The motor is mechanically
stuck.

The input command pulse is
abnormal.

Check the load
mechanical part.

Check the command
pulse.

Check if the motor is
rotating according to
the command pulse.
9
Encoder
failure The encoder is wired incorrectly. Check the wiring.
The encoder is damaged. Replace the motor.
Defective encoder cable. Replace the cable.
The encoder cable is too long,
causing the encoder to be supplied
The electric voltage is low.

Shorten the cable.

Multi-core parallel
power supply.
10
Control
power
supply
undervoltag
e The input control power is low. Check the control power.

Defective internal connector
of the drive.

The switching power supply
is abnormal.

The chip is damaged.

Replace the drive.

Check the connector.

Check the switching
power supply.
11
Ipm module
failure Switch on
control
Appears
when power
The board is faulty. Replace the servo drive.
Appears
during
motor
operation

The supply voltage is low.

overheat.

Check the drive.

Power on again.

Replace the drive.
Short circuit between drivers u, v,
w.
Check the wiring.
Poor grounding. Ground properly.
The motor insulation is damaged. Replace the motor.
Being disturbed.

Increase the line filter.

Keep away from sources
of interference.
12
Overcurrent Short circuit between drivers u, v,
w.
Check the wiring.
Poor grounding. Ground properly.
The motor insulation is damaged. Replace the motor.
The drive is damaged. Replace the drive.