Errors Detected By Mr-J2-03B5 - Mitsubishi A1SD75M3 User Manual

14 TROUBLESHOOTING

14.2.6 Errors detected by MR-J2-03B5

Servo
Error
amplifier
code
LED display
2010 10 Undervoltage
2011 11 Board error 1
2012 12 Memory error 1
2013 13 Clock error
2015 15 Memory error 2
2016 16 Encoder error 1
2017 17 Board error 2
2020 20 Encoder error 2
2024 24 Main circuit error
2031 31 Overspeed
2032 32 Overcurrent
2033 33 Overvoltage
Name Definition
Power supply voltage
dropped to 20VDC or
less.
Printed board fault
RAM, ROM memory
fault
Printed board fault
2
E PROM fault
Communication error
occurred between
encoder and servo
amplifier.
CPU/parts fault
Communication error
occurred between
encoder and servo
amplifier.
Ground fault occurred at
the servomotor output U,
V and W phases of the
servo amplifier.
Speed has exceeded the
instantaneous
permissible speed.
Current that flew is
higher than the
permissible current of
the servo amplifier.
Input value of converter
bus voltage exceeded
35V.
1. Power supply voltage is low.
2. An instantaneous power failure occurred for 40ms or longer.
3. Shortage of power supply capacity caused the power supply
voltage to drop at start, etc.
4. Power was restored after the bus voltage dropped to 15VDC.
(Main circuit power switched ON within 5s after it had switched
OFF.)
5. Faulty parts in the servo amplifier.
Faulty parts in the servo amplifier.
1. CNP2 connector disconnected.
2. Encoder faulty.
3. Encoder cable faulty (open cable or short circuit)
Faulty parts in the servo amplifier
1. CNP2 connector disconnected.
2. Encoder faulty
3. Servomotor cable faulty
(Encoder wiring is open or shorted)
1. Servomotor power cable insulation deteriorated, resulting in
ground fault.
2. Main circuit of servo amplifier faulty.
1. Small acceleration/deceleration time constant caused overshoot
to be large.
2. Servo system is instable to cause overshoot.
3. Encoder faulty.
1. Short occurred in servo amplifier output phases U, V and W.
2. Servo amplifier transistor faulty
3. Ground fault occurred in servo amplifier output phases U, V and
W.
4. External noise caused the overcurrent detection circuit to
malfunction.
Power supply voltage is higher than permissible voltage range.
14 - 58
MELSEC-A
Occurrence factor