6 OPTIONS AND PERIPHERAL EQUIPMENT
6.17 MR-J3-D05 safety logic unit
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6
Troubleshooting
If the power does not turn on or if the FAULT LED is on, take corrective actions according to the following table.
Event Description Cause Action
The power does not
turn on.
Even when the power is turned on,
the power supply 3-digit, 7-segment
LED does not light up.
1. The 24 V DC power supply has
malfunctioned.
Replace the 24 V DC power supply.
2. The wiring between the MR-J3-D05 and
the 24 V DC power supply is
disconnected or is in contact with other
wiring.
Check the wiring.
3. The MR-J3-D05 has malfunctioned. Replace the MR-J3-D05.
The FAULT LED is on. The FAULT 3-digit, 7-segment LED
for A-axis or B-axis remains on and
does not turn off.
1. Delay time setting mismatch Check the settings of the rotary switches.
2. Switch input error Check the input signal wiring or input signal
sequence.
3. TOF signal error Check the connection with the servo
amplifier.
4. The MR-J3-D05 has malfunctioned. Replace the MR-J3-D05.
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