14. USING A DIRECT DRIVE MOTOR
14 - 43
14.6.2 Remedies for alarms
CAUTION
When any alarm has occurred, eliminate its cause, ensure safety, and deactivate the
alarm before restarting operation. Otherwise, it may cause injury.
If Absolute position erased (25.1) occurs, always make home position setting again.
Otherwise, it may cause an unexpected operation.
When alarms are occurring in both axes of A and B, shut off the main circuit power
supply. Not doing so may cause a fire when a regenerative transistor malfunctions or
the like may overheat the regenerative resistor.
POINT
When any of the following alarms has occurred, do not cycle the power repeatedly
to restart. Doing so will cause a malfunction of the servo amplifier and direct drive
motor. Remove its cause and allow about 30 minutes for cooling before resuming
the operation. To protect the main circuit elements, any of these servo alarms
cannot be deactivated from the servo system controller until the specified time
elapses after its occurrence. Judging the load changing condition until the alarm
occurs, the servo amplifier calculates this specified time automatically.
Regenerative error (30. )
Main circuit device overheat (45. )
Overload 1 (50. )
Direct drive motor overheat (46. )
Overload 2 (51. )
To deactivate the alarm, cycle the power, command the error reset, or CPU reset
from the servo system controller. For details, refer to section 14.6.1.
When an alarm occurs, Malfunction (ALM-A/ALM-B) switches off and the dynamic brake is operated to stop the
direct drive motor. At this time, the display indicates the alarm No.
Remove the cause of the alarm in accordance with this section. Use MR Configurator to refer to the cause of
alarm occurrence.
Alarm No.: 10
Name: Undervoltage
Stop system: All axes
Alarm content
The voltage of the control circuit power supply has dropped.
The voltage of the main circuit power supply has dropped.
Display
Detail name
Cause
Check method
Check result
Action
10.1 Voltage drop in
the control
circuit power
Same as for the rotary servo motors.
Refer to section 8.3.
10.2 Voltage drop in
the main circuit
power
Summary of Contents for MELSERVO-J3W Series
Page 17: ...8 MEMO ...
Page 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Page 87: ...4 STARTUP 4 14 MEMO ...
Page 117: ...5 PARAMETERS 5 30 MEMO ...
Page 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Page 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Page 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...