Troubleshooting and remedial actions
162
5 T
3
Troubleshooting and remedial actions
In motor operation, the motor or the driver may not operate properly due to an improper setting or wrong
connection.
When the motor operation cannot be performed properly, refer to the contents provided in this chapter and take an
appropriate remedial action.
If the problem persists, contact your nearest Oriental Motor sales office.
Phenomenon
Possible cause
Remedial action
•
The motor is not excited.
•
The motor output shaft can
be rotated by hand.
Connection error of the motor
cable
Check the motor connection.
The FREE input is being ON.
Turn the FREE input OFF.
The motor has a holding torque
even if it puts into a non-
excitation state.
Effect of dynamic brake.
If the motor puts into a non-excitation state, the motor
windings are brought into a state of being short-
circuited inside the driver, generating a larger holding
torque than when no current is supplied (dynamic
brake). To release the dynamic brake, shut off the
control power supply or turn the FREE input ON. Using
the Non-excitation mode selection (413Dh) can select
whether to enable the dynamic brake status or the
free-run status when the motor is in a non-excitation
state.
The motor does not rotate.
When an electromagnetic brake
motor is used, the electromagnetic
brake is in a state of holding the
motor shaft.
•
Check the connection of the electromagnetic brake.
•
Check the input voltage of the control power supply.
The STOP input is being ON.
Turn the STOP input OFF.
The motor rotates in the
direction opposite to the
specified direction.
The Motor rotation direction
(41C2h) is set wrongly.
Check the setting of the Motor rotation direction
(41C2h).
The gearhead output shaft
rotates in the direction opposite
to the motor.
A geared motor that rotates in the
direction opposite to the motor
output shaft is used.
•
With the
TS
geared type, the gearhead output shaft
rotates in the direction opposite to the motor when
the gear ratio is 20 or 30.
•
With the Harmonic geared type, the gearhead output
shaft always rotates in the direction opposite to the
motor.
Motor operation is unstable.
Connection error of the motor
cable or power supply cable.
Check the connections for the driver, the motor, and
the main power supply.
The value set in the Base current
(4126h) is too low.
Check the setting of the Base current (4126h). If the
motor current value is low with respect to a load, the
torque will also be low and the operation will be
unstable.
The Main power mode (41FAh) is
set wrongly.
Check the setting of the Main power mode (41FAh).
The main power supply starts up
slowly or the voltage of the main
power supply is unstable.
Set the Main power mode (41FAh) to "0: 24 VDC" or "1:
48 VDC" according to the rated voltage of the main
power supply.
Motor vibration is too large.
The load is small.
Lower the current with the Base current (4126h). If the
motor output torque is too large with respect to a
load, vibration will increase.
The Main power mode (41FAh) is
set wrongly.
Check the setting of the Main power mode (41FAh).
The main power supply starts up
slowly or the voltage of the main
power supply is unstable.
Set the Main power mode (41FAh) to "0: 24 VDC" or "1:
48 VDC" according to the rated voltage of the main
power supply.
Содержание aSTEP AZ mini Driver
Страница 14: ...14 1 Introduction...
Страница 128: ...128 3 EtherCAT communication...
Страница 146: ...146 4 Object list...
Страница 164: ...164 5 Troubleshooting...
Страница 170: ...170 6 Reference materials...
Страница 171: ...171 6 Reference materials...
