Errors Detected By Mr-J-B - Mitsubishi A1SD75M3 User Manual

14 TROUBLESHOOTING

14.2.3 Errors detected by MR-J-B

Servo
Error
amplifier
code
LED display
Undervoltage
The power supply voltage (R, S, T)
2010 10
dropped to or below the given level
(160VAC).
Memory error 1
2012 12
ROM, RAM
2013 13 Clock error
Memory error 2
2015 15
2
E PROM
2016 16 Encoder error 1
2017 17 Board error
2020 20 Encoder error 2
2025 25 Absolute position erase
2030 30 Regenerative error
Name and definition
1. Power supply voltage is 160VAC or less.
2. An instantaneous power failure occurred for 15ms or longer.
3. Shortage of power supply capacity caused the power supply
voltage to drop at start, etc.
J-C21 printed board fault
J-C21 printed board fault
J-C21 printed board fault
1. Encoder connector disconnected.
2. Servomotor encoder faulty.
3. Encoder cable faulty (open cable or short circuit)
J-P4 printed board fault
1. Excessive noise generated.
2. Encoder cable fault (open cable or short circuit)
1. Voltage low in the super capacitor in the detector (set-up start)
2. Battery voltage low
3. Battery cable or battery is faulty.
1. " Pr.102 Regenerative brake resistor" setting error
2. Regenerative brake resistor not connected.
3. Max. regenerative load exceeded.
(1) High-duty operation caused the maximum load capacity of the
regenerative brake resistor to be exceeded.
(2) Continuous regenerative operation caused the maximum load
capacity of the regenerative brake resistor to be exceeded.
4. Regenerative power transistor damaged (short circuit).
5. Regenerative brake resistor faulty.
14 - 34
MELSEC-A
Occurrence factor