42
oscilloscope to monitor whether the motor output torque is
abnormal.
Er.730
BD overload 1
1. The load is too heavy during shutdown, causing the DB
resistor to overload, try to reduce the running speed or reduce
the load
2. Check whether the motor is driven by external force
3. According to customer needs, re-evaluate whether you need
to use DB mode during shutdown, if not, you can choose
another way to shutdown
4. If the fault is reported in the last operation, the power will
wait for a period of operation
1
Er.7A0
Heat sink
overheat
1. With fan drive, check whether the air duct is blocked and the
fan is damaged
2. Check the driver installation conditions, whether the heat
dissipation conditions are good, and improve the heat
dissipation conditions of the driver as much as possible.
3. Check the load condition of the driver. If the load is too
heavy, the customer can be advised to replace the driver in the
high power section.
4. If conditions permit, reduce the carrier frequency of the driver
2
Er.810
Encoder
backup
abnormal
1. Check the battery power supply of the multi-turn encoder
2. Perform the zero-turn action of the multi-turn encoder
1
Er.830
Battery
undervoltage
Replace multi-turn encoder battery
1
Er.BF4
Hardware
overcurrent
Unplug the power cord and turn on the power of the servo unit
again. If the alarm still occurs, the servo unit may be faulty.
Replace the servo unit. If not, confirm whether it is power line
or motor failure
1
Er.C10
Runaway
alarm
1. Confirm whether the motor wiring is normal
2. Check whether the motor and encoder are normal
3. Reconnect the power supply of the servo drive, if the alarm
still occurs, the servo drive may be faulty
1
Er.C90
Encoder
communication
failure:
disconnection
1. The multimeter tests each signal line of the encoder line for
any signal line breaks
2. Check the model of the encoder cable to confirm whether the
model is correct
3. Check the length of the encoder line, the encoder line should
not be too long
4. It may be caused by interference, try to ground the driver or
the encoder wire around the magnetic ring
5. Check the parameters of the motor group to confirm whether
the motor is correct
6. Eliminate various reasons, the servo driver may be faulty, and
replace the servo unit.
1
Er.C91
Encoder
communication
position data
acceleration
abnormal
1
Er.CA0
Encoder
parameter is
abnormal
1
Содержание SD700-110D series
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