
8 Control Input/Output
© Copyright Reserved Autonics Co., Ltd.
63
2)
In Case of Motor Stops and Torque Releases
Alarm
status
Alarm type Descriptions
Causes
Troubleshooting
e1
Overcurrent
error
When overcurrent
flows at motor
RUN element
1. Overload
2. Insufficient SMPS capacity
1. Change operation condition or
reduce load so that sudden load
fluctuation does not occur
2. Check that less than recommended
SMPS capacity is used
3. Check driver break
e2
Overspeed
error
When motor
speed is over
4,000rpm
1. When overload is applied
and released at a moment
2. Turning more than 4,000
rpm by external force
1. Change operation condition or
reduce load so that sudden load
fluctuation does not occur
2. Change the operating condition so
that the motor does not rotate more
than 4,000 rpm
e3
Position
tracking
error
When the gap
between position
command value
and current
position value is
over 90°
1. Overload
2. Motor connector and cable
connection error
3. Burnout of line driver IC in
encoder
1. Change operation condition or
reduce load so that sudden load
fluctuation does not occur
2. Check motor connector and cable
connection
3. Replace the line driver IC in encoder
e4
Overload
error
When applying
load over the
rated load for 1
sec
1. Overload
2. Insufficient SMPS capacity
1. Change operation condition or
reduce load so that sudden load
fluctuation does not occur
2. Check the less used than
recommended SMPS capacity
3. Check driver break
e5
Overheat
error
When driver inner
temperature is
over 80
℃
1. Installed in an enclosed
space
1. Change the installation
environment
Air flow around driver installation
Heat dissipation (heat sink or fan)
e6
Motor
connection
error
When motor cable
connection error
occurs at driver
1. Motor connector and cable
connector error
2. Burnout of the inverter in
the driver
1. Check motor connector and cable
connection
2. Replace burned parts of the
inverter in driver
e7
Encoder
connection
error
When encoder
cable connection
error occurs at
driver
1. Motor connector and cable
connector error
2. Burnout of line driver IC in
encoder
1. Check motor connector and cable
connection
2. Replace the line driver IC in encoder
e8
Regenerativ
e voltage
error
When
regenerative
voltage is over 78V
1. Overload
2. Excessive force due to rapid
deceleration
1. Change operation condition or
reduce load so that sudden load
fluctuation does not occur
e9
Motor
misalignme
nt
When motor is in
misalignment
1. Motor connector and cable
connector error
2. Burnout of line driver IC in
driver
3. Burnout of line driver IC in
encoder
4. Burnout of inverter in driver
1. Check motor connector and cable
connection
2. Replace the line driver IC in driver
3. Replace the line driver IC in encoder
4. Replace burned parts of the
inverter in the driver
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