150
Rev. 2.0
07/27/2023
MBDV Hardware Manual
9 Troubleshooting
9.1 List of drive alarms
When an alarm occurs in the driver, the LED digital display on the driver ashes to display the
alarm code. The alarm code is dened as follows:
Display
content
Description Type of alert Drive status after alarm Resettable
Drive over temperature alarm Fault Servo o Yes
Internal voltage alarm Fault Servo o no
Drive overvoltage alarm Fault Servo o Yes
Overcurrent
Fault Servo o Yes
Fault Servo o Yes
Fault Servo o Yes
Encoder signal error Fault Servo o no
Position error overrun Fault Servo o Yes
Drive low voltage alarm Fault Servo o Yes
Stall Alarm Fault Servo o Yes
Limit switch triggered Warning
The motor cannot rotate without
changing the current state
Yes
Negative limit switch triggered Warning
Without changing the current state, the
motor cannot continue to reverse
Yes
Positive limit switch triggered Warning
Without changing the current state,
the motor cannot continue to rotate
forward
Yes
Current Limit Warning Do not change the current state Yes
Communication error Warning Do not change the current state Yes
Parameter save failed Warning Do not change the current state Yes
Safe torque o Warning Servo o Yes
Regeneration Failed Fault Servo o Yes
Undervoltage warning Warning Do not change the current state Yes
No Q program warning Warning Do not change the current state Yes
Motion command received while
motor disabled
Warning Do not change the current state Yes
Internal voltage error
Fault Servo o no
Fault Servo o no
Emergency stop Warning Motor decelerates to stop Yes