Rotary Switch Settings; Troubleshooting - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

Rotary switch settings

The rotary switches are used for shutting off the power after a control stop by the SS1 function.
Set the delay time from when the STO shut-off switch is pressed until STO is output. In addition, set SW1 and SW2 to the
same value. The table below lists the combinations of delay times according to settings.
Note that the settings cannot be changed while the power is on. Also, take actions such as sealing the switches with stickers
so that the settings will not be changed after shipment, and inform the end user that changing settings is prohibited.
0 to F in the table are the setting values for the rotary switches (SW1 and SW2).
Rotary switch settings and A-
axis/B-axis delay time [s]
A-axis 0 s
1.4 s
2.8 s
5.6 s
9.8 s
30.8 s

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
The power does not Even when the power is turned on,
turn on. the power supply 3-digit, 7-segment
LED does not light up.
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.
B-axis
0 s 1.4 s
0 1
 
 
 
 
 
Cause
1. The 24 V DC power supply has
malfunctioned.
2. The wiring between the MR-J3-D05 and
the 24 V DC power supply is
disconnected or is in contact with other
wiring.
3. The MR-J3-D05 has malfunctioned.
1. Delay time setting mismatch
2. Switch input error
3. TOF signal error
4. The MR-J3-D05 has malfunctioned.
2.8 s 5.6 s

2

5

8
 
 
 
Action
Replace the 24 V DC power supply.
Check the wiring.
Replace the MR-J3-D05.
Check the settings of the rotary switches.
Check the input signal wiring or input signal
sequence.
Check the connection with the servo
amplifier.
Replace the MR-J3-D05.
6 OPTIONS AND PERIPHERAL EQUIPMENT
6.18 MR-J3-D05 safety logic unit
9.8 s 30.8 s
3 4
6 7
9 A
B C
D E

F
387
6