10-
53
10
T
roubleshooting
2. Troubleshooting
2.3
Troubleshooting checkpoints
1. Installation and power supply
1
2
3
Symptom
Controller won't turn on
even with power supplied.
Controller turns on but no
MPB display.
Controller turns on but
“ERR” LED on front panel
lights up.
Possible cause
• Power not supplied.
• Problem in controller
internal power.
• MPB not connected.
• Wrong MPB connection.
• MPB malfunctioning.
• Problem in controller
internal power supply.
• Now in emergency stop.
• Error of error group No.
17 occurred.
• Error of error group No.
21, 22 occurred.
Corrective action
• Connect power input terminal
correctly.
• Supply rated power supply
voltage.
• Replace the controller.
• Plug in MPB connector
correctly.
• Replace the MPB.
• Replace the controller.
• Release MPB emergency stop
switch.
• Insert MPB connector.
• Connect the emergency stop
terminal of SAFETY
connector.
• Check the axis from the error
information.
• Check the cause from the
error information.
• Eliminate the cause of the
error.
• Check the cause from the
error information.
• Eliminate the cause of the
error.
Check items
• Check power input terminal
connection (L/N/GND).
• Check power input terminal
voltage (L/N/GND).
• Check if “PWR” LED on front
panel is lit.
• Check MPB connector.
• Check how MPB connector is
inserted.
• Replace MPB and check
operation.
• Connect the MPB and check
the error history.
• Check DI00 on MPB screen.
• Connect the MPB and check
the error history.
• Connect the MPB and check
the error history.
Содержание RCX142
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