[Al. 139_Open Phase Error] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 139_Open phase error]

• An open phase occurred in the main circuit power supply of the servo amplifier.
• An open phase occurred in the servo motor power line.
[AL. 139.1_Input open phase error]
Cause
1.
An open phase occurred in the main circuit
power line of the servo amplifier.
2.
The main circuit power supply is distorted.
[AL. 139.2_Output open phase error]
Cause
1.
An open phase occurred in the servo motor
power line.
2.
The winding inside the servo motor is
disconnected.
[AL. 139.3_Motor wiring error]
Cause
1.
The servo motor that has been connected with
the servo motor power line is not the servo
motor to be connected. The servo motor that
has been connected with the encoder cable is
not the servo motor to be connected.
2.
The winding inside the servo motor is
disconnected.
Check/action method
Check that the main circuit power line is connected with the servo amplifier.
Make sure that single-phase AC power supply is not inputted to the servo
amplifier that cannot use single-phase AC power supply.
Check that the main circuit power line of the servo amplifier is closed. If the
main circuit power line of the servo amplifier is open, replace the main circuit
power line.
Review the power-supply environment of the main circuit.
Check/action method
Check that the servo motor power line is connected with the servo amplifier.
Check that the servo motor power supply is connected with the servo amplifier.
Check that the servo motor power line is closed. If the servo motor power line
is open, replace the servo motor power line.
Replace the servo motor, and then check the repeatability.
Check/action method
Check the servo motor of the connection destination of the servo motor power
line and encoder cable.
Check the conduction of the servo motor power line. If the servo motor power
line is open, replace the servo motor power line.
Replace the servo motor, and then check the repeatability.
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
1
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]
Model
[A]
[G]
[WG]
95