8.Maintenance
Trouble shooting when alarm activated
8-12
■
Alarm code 45 (Average continuous over speed)
Status at the time of alarm
Cause
1
Occurred during operation.
✔
◆
Corrective actions
Cause
Investigation and corrective actions
1
■
The average speed exceeds the
maximum speed of continuous
rotation speed range.
■
Review the operating conditions.
■
Resize the motor.
■
Alarm code 51 (Driver Overheat)
Status at the time of alarm
Cause
1
2
3
4
Issued when power supply control is turned ON.
✔
✔
Issued during operation.
✔
✔
✔
Issued after emergency stop.
✔
◆
Corrective actions
Cause
Investigation and corrective actions
1
■
Defect in internal circuit of driver.
■
Replace the driver.
2
■
Regenerating power exceeded.
■
Check the operating conditions.
■
Use external regeneration resistor.
3
■
Regenerating power is within the
specified range but ambient
temperature of driver is out of
specified range.
■
Confirm that the cooling method maintains
the temperature of control board between
0 to 55°C.
4
■
Regeneration energy during
emergency stop exceeded.
■
Change the driver.
■
Check the loading condition.
✔
Abnormalities are detected in the internal temperature of the driver regardless of its ambient
temperature. When a driver temperature warning is issued, please be sure to check the cooling method
of the control panel.
■
Alarm Code 52 (In-rush prevention resistance Overheat)
Status at the time of alarm
Cause
1
2
3
Issued when power supply control is turned ON.
✔
Issued when main circuit power supply is turned ON.
✔
Issued during operation.
✔
◆
Corrective actions
Cause
Investigation and corrective actions
1
■
Defect in internal circuit of driver.
■
Replace the driver.
2
■
Power turning ON is repeated too
frequently.
■
Turn ON/OFF the power less frequently.
3
■
Ambient temperature is high.
■
Check if the temperature inside the control
board (driver ambient temperature)
exceeds 55°C. If it does, review the driver
installing method and cooling method of
control board to make it below 55°C.
Summary of Contents for M-EGA-15A2301
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