43
Troubleshooting
During motor operation, the motor or driver may fail to function properly due to an improper speed setting or wiring.
When the motor cannot be operated properly, refer to the contents provided in this chapter and take appropriate action.
If the problem persists, contact your nearest Oriental Motor sales oce.
Note
•
Check the alarm contents when an alarm is generated.
•
I/O signals can be monitored with the monitor mode. Use it to check the wiring condition of the I/O signals.
The motor does not operate.
●
The power supply is not connected correctly or it is improper connection.
▷
Check the connection of the power supply.
●
An operation using external signals is being tried while the local control operation is performed.
▷
Press
key to set the remote control operation.
●
When the local control operation is not set,
key is pressed.
▷
Press key to set the local control operation before pressing key.
●
Both the FWD input and the REV input are being OFF.
Both the FWD input and the REV input are being ON.
▷
Turn either the FWD input or the REV input ON.
●
An alarm is present.
▷
A protective function is triggered and an alarm is being generated.
Refer to p.44 and reset the alarm after removing the cause of the alarm.
The rotation speed is not
displayed.
●
The "Operation panel initial view" parameter is not set to the rotation speed.
▷
Set the "Operation panel initial view" parameter to the rotation speed.
●
The “Speed reduction ratio” and "Speed increasing ratio" parameters are being set.
▷
Check the “Speed reduction ratio” and "Speed increasing ratio" parameters.
is displayed and
the setting is unable
●
The analog setting is applied to the rotation speed, and the speed teaching function is
being executed.
▷
When the speed teaching function is performed, set to the digital setting.
●
The ALARM-RESET is being executed using the operation panel in a state where both the
FWD input and the REV input are not turned OFF while an alarm is generated.
▷
Turn both the FWD input and the REV input OFF before executing the ALARM-RESET input.
●
Rewriting the data on the operation panel or setting to the local control operation is
tried while the communication is performed via the
MEXE02
.
▷
During communication, do not change the data on the operation panel. Also, do not set to the
local control operation.
ALARM LED (orange) blinks
●
Information is present.
▷
Information is present because of any of causes.
Refer to the USER MANUAL, and check the cause of information and how to reset.
The motor rotates in the
opposite direction against
the specied direction.
●
The FWD input and the REV input are connected wrongly or otherwise not connected
correctly.
▷
Check the connection of the FWD input and the REV input.
●
The gearhead with a reduction ratio which rotation direction is opposite to the motor
output shaft is used.
▷
Check the operating manual included with the motor for the rotation direction of the gearhead
output shaft.
●
The "Motor rotation direction" parameter is set to 0 (positive direction=CCW).
▷
Change the setting for the "Motor rotation direction" parameter to 1 (positive direction=CW).
The setting cannot be
performed using the setting
dial.
●
The edit lock function is enabled or the "Operation panel editing" parameter is set to disable.
▷
Release the edit lock function or enable the setting of the "Operation panel editing" parameter.
The rotation speed cannot be
increased.
●
The speed upper limit is set.
▷
Increase the speed upper limit.
The rotation speed cannot be
decreased.
●
The speed lower limit is set.
▷
Decrease the speed lower limit.
The motor movement is not
stable.
Motor vibration is too large.
●
The motor and gearhead output shaft and a load shaft are out of alignment.
▷
Check the installation status of the motor (gearhead) output shaft and load shaft.
●
The product is aected by electrical noise.
▷
Check the operation using the motor, driver, and a minimum of external devices required to operate.
If an eect of noise has been conrmed, implement the following countermeasures:
[Keep away from the noise sources.] [Reconsider the wiring.]
[Change the signal cable to a shielded cable.] [Install ferrite cores.]
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