Errors Detected By Mr-J2S-B - Mitsubishi A1SD75M3 User Manual

14 TROUBLESHOOTING

14.2.5 Errors detected by MR-J2S-B

Servo
Error
amplifier
code
LED display
2010 10 Undervoltage
2012 12 Memory error 1
2013 13 Clock error
2015 15 Memory error 2
2016 16 Encoder error 1
2017 17 Board error 2
2019 19 Memory error 3
Motor
2020 1A combination
error
2020 20 Encoder error 2
2024 24 Ground fault
Absolute
2025 25
position erase
Name Definition
Power supply voltage
dropped.
MR-J2S- B:
160VAC or less
MR-J2S- B1:
83VAC or less
RAM memory fault
Printed board fault
2
E PROM fault
Communication error
occurred between
encoder and servo
amplifier.
CPU/parts fault
ROM memory fault
Servo amplifier and
servomotor combined
incorrectly.
Communication error
occurred between
encoder and servo
amplifier.
Ground fault occurred at
the servomotor outputs
(U, V and W phases) of
the servo amplifier.
Absolute position data in
error
Power was switched ON
for the first time in
absolute position
detection system.
1. Power supply voltage is low.
2. An instantaneous power failure occurred for 60ms 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 200VDC.
(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. CN2 connector disconnected.
2. Encoder faulty.
3. Encoder cable faulty (open cable or short circuit)
Faulty parts in the servo amplifier.
Servo amplifier and servomotor were connected in incorrect
combination.
1. Encoder connector (CN2) disconnected.
2. Encoder cable faulty (open cable or short circuit)
1. Power input cable and servomotor output cable are making
contact at the main circuit terminal block (TE1).
2. Servomotor power cable insulation deteriorated.
1. Reduced voltage of super capacitor in encoder
2. Battery voltage low
3. Battery cable or battery is faulty.
4. The super capacitor of the absolute position detector is not
charged.
14 - 50
MELSEC-A
Occurrence factor