Action technology A3 - No Display on Setting Panel; Troubleshooting

93
6.3 Troubleshooting
When no alarm occurs, confirm the following items if the drive does not operate and the motor does not rotate.
Status
Description
Reference items
Troubleshooting 1
No display on setting
panel
Switch on the control power supply (24V DC), but on any display
「 」on the setting panel.
Table 6.3.1
Troubleshooting 2
Servo not ON
Even though 「 」is displayed on the setting panel,
the servo cannot start.
Table 6.3.2
Troubleshooting 3
Motor cannot rotate
The servo is ON, but the motor will not operate.
Table 6.3.3
Troubleshooting 4
Motor operation not
steady
The motor operates unsteadily.
Table 6.3.4
Troubleshooting 5
Vibration and sound
Vibration and sound occurs when the motor operates.
Table 6.3.5
■Troubleshooting 1 (No display on setting panel)
Switch on the control power supply (24V DC), but on any display 「 」on the setting panel.
Table 6.3.1
Cause
What to do
The user I/O connector is not connected to 24V
DC.
Connecting 24V DC to the user I/O connector.
Pin1 and 3 is connected to 24V DC. Pin2 and 12 is connected to GND.
The user I/O connector loosens.
Check the connection and make sure it’s OK.
24V DC voltage drops.
Check the capacity of 24V DC.
Drive itself failure.
Consult with ACTION TECHNOLOGY.