Oriental motor BLE Series - 11 Protection Function; Alarm Flashing Patterns and List

Protection function
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48
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11 Protection function
When an alarm generates and the driver's protective function is actuated, the ALARM-OUT1 output will turn OFF.
*
In the case of a standard type, the motor coasts to a stop, and then the holding power of the motor output shaft is lost.
When the motor is an electromagnetic brake type, the motor stops instantaneously and the electromagnetic brake is
actuated to hold the shaft in position.
The ALARM LED blinks at the same time. You can check the type of the alarm by counting the number of times the
ALARM LED blinks.
*
ON in the
FBL
Ⅱ
compatible mode
Flashing pattern example: Sensor error (three ashes)
0.3 s0.3 s 1.5 s
1 2 3 1 2 3
To reset an alarm, be sure to remove the cause of the alarm and then perform one of the following operations:
•
Turn the ALARM-RESET input ON for at least 10 ms. (Refer to p.31 for details.)
•
Turn off the power, wait for at least 30 sec, and then cycle the power.
Note
•
Alarms cannot be reset if the FWD input or REV input is ON or the motor is running. Be sure to
stop the motor before resetting any alarm.
•
Alarms caused by damage to the motor or driver itself cannot be reset using the method
explained above. Please contact your nearest ofce.
•
Make sure the ALARM-RESET input remains ON for at least 10 ms. If the ON period is too
short, the alarm may not be reset.
•
If an external stop alarm generates, the motor stops instantaneously.

Alarm list
No. of ALARM
LED blinks
Alarm name Cause Remedial action
Reset using the
ALARM-RESET
input
2 Overload
A load exceeding the rated
torque was applied to the
motor for 5 seconds or more.
•
Decrease the load.
•
Review the operation pattern
settings such as the acceleration/
deceleration time.
Possible
3
Sensor error
The motor sensor signal line
experienced an open circuit
during operation, or the signal
connector came off.
Check the connection between the
driver and motor.
Initial sensor error
The motor sensor signal line
broke or signal connector
came off before the main
power supply was turned on.
4 Overvoltage
•
The main power-supply
voltage became higher than
the rated voltage by approx.
20%.
•
A load exceeding the
allowable gravitational
capacity of the motor is
driven or sudden starting/
stopping of a large inertial
load is performed.
•
Check the main power supply
voltage.
•
If this alarm occurs during
operation, reduce the load
or increase the acceleration/
deceleration time.
•
Use a regeneration unit.
5 Undervoltage
The main power-supply
voltage became lower than
the rated voltage by approx.
40%.
•
Check the main power supply
voltage.
•
Check the wiring of the power
supply cable.
6 Overspeed
The rotating speed of the
motor output shaft exceeded
approx. 4800 r/min.
•
Decrease the load.
•
Review the operation pattern
settings such as the acceleration/
deceleration time.