8. TROUBLESHOOTING
8 - 1
8. TROUBLESHOOTING
POINT
Refer to "MELSERVO-JE Servo Amplifier Instruction Manual (Troubleshooting)"
for details of alarms and warnings.
As soon as an alarm occurs, turn SON (Servo-on) off and interrupt the power.
[AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning])
are not recorded in the alarm history.
When an error occurs during operation, the corresponding alarm or warning is displayed. When an alarm or
the warning displayed, refer to "MELSERVO-JE Servo Amplifier Instruction Manual (Troubleshooting)" to
remove the failure. When an alarm occurs, ALM (Malfunction) will turn off.
8.1 Explanations of the lists
(1) No./Name/Detail No./Detail name
Indicates the No./name/detail No./detail name of alarms or warnings.
(2) Stop method
For the alarms and warnings in which "SD" is written in the stop method column, the servo motor stops
with the dynamic brake after forced stop deceleration. For the alarms and warnings in which "DB" or
"EDB" is written in the stop method column, the servo motor stops with the dynamic brake without forced
stop deceleration.
(3) Alarm deactivation
After the cause of the alarm has been removed, the alarm can be deactivated by any of the methods
marked
in the alarm deactivation column. Warnings are automatically canceled after the cause of
occurrence is removed. Alarms are deactivated by alarm reset or power cycling.
Alarm deactivation Explanation
Alarm reset 1. Turn on RES (Reset) with an input device.
2. Push the "SET" button while the display of the servo amplifier is in the current
alarm display mode.
3. Click "Occurring Alarm Reset" in the "Alarm Display" window of MR Configurator2.
Power cycling Turn off the power, check that the 5-digit, 7-segment LED display is off, and then
turn on the power.
(4) Alarm code
To output alarm codes, set [Pr. PD34] to "_ _ _ 1". Alarm codes are outputted by turning on/off bit 0 to bit
2. Warnings ([AL. 90] to [AL. F3]) do not have alarm codes. The alarm codes in the following table will be
outputted when they occur. The alarm codes will not be outputted in normal condition.
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