Delta ASDA-A3 Series User Manual page 133

Test Operation and Panel Display
 When the screen displays:
4
Undervoltage warning.
Corrective action:
1.
2.
3.
Note: during power on or in the Servo On state (without issuing any commands), if an alarm occurs or any
abnormal display appears, please contact the distributors.
4-18
Check if the main circuit wiring is correct.
Use a voltmeter to make sure that the main circuit voltage is normal.
Use the voltmeter to measure if the power system complies with the specifications.
ASDA-A3