Mitsubishi A1SD75M3

14 - 42
MELSEC-A
14 TROUBLESHOOTING
14.2.4 Errors detected by MR-J2-B
Error
code
Servo
amplifier
LED display
Name Definition Occurrence factor
1. Power supply voltage is low.
2. An instantaneous power failure occurred for 100ms 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.)
2010 10 Undervoltage
Power supply voltage
dropped to 160VAC or
less.
5. Faulty parts in the servo amplifier.
2011 11 Board error 1 Printed board fault
2012 12 Memory error 1
RAM, ROM memory
fault
2013 13 Clock error Printed board fault
2015 15 Memory error 2 E
2
PROM fault
Faulty parts in the servo amplifier.
1. Encoder connector disconnected.
2. Servomotor encoder faulty.
3. Encoder cable faulty (open cable or short circuit)
2016 16 Encoder error 1
Communication error
occurred between
encoder and servo
amplifier.
4. Incorrect combination of servo amplifier and servomotor
2017 17 Board error 2 CPU/parts fault
2018 18 Board error 3
Faulty parts in the servo amplifier.
1. Encoder connector disconnected.
2020 20 Encoder error 2
Communication error
occurred between
encoder and servo
amplifier.
2. Encoder cable faulty (open cable or short circuit)
2024 24 Ground fault
Ground fault occurred at
U, V and W.
1. Ground fault occurred at U, V and W phases of servo amplifier
output.
1. Reduced voltage of super capacitor in encoder
2. Battery voltage low
Absolute position data in
error
3. Battery cable or battery is faulty.
2025 25
Absolute
position erase
Power was switched ON
for the first time in
absolute position
detection system.
4. The super capacitor of the absolute position detector is not
charged.