Mitsubishi Electric Q172CPU Programming Manual page 266

APPENDICES
Error
code
Name
• The power supply voltage is 160VAC
or less. (320VAC or less for 400VAC
series servo amplifier.)
• Interruption of 15[ms] or longer
2010 Low voltage
occurred.
• The power supply voltage dropped at
the start, etc. due to the insufficient
power capacity.
• Servo amplifier SRAM fault.
• Servo amplifier EPROM check sum
2012 Memory error 1
error.
• Servo amplifier clock fault.
2013 Clock error
• Servo amplifier hardware fault.
2014 Watchdog • Multiple CPU system hardware fault.
2015 Memory error 2 • Servo amplifier EEPROM fault.
• Fault in communication with the
encoder.
2016 Encoder error 1
• Faulty device in the servo amplifier
2017 PCB error
PCB.
• Check sum error of the servo
2019 Memory error 3
amplifier flash ROM.
• Fault in communication with the
encoder.
2020 Encoder error 2
• The servo-on (SON) signal turned on
when the ready signal (RD) turned off
Converter RD
of the converter.
off (400VAC
2021 1. Bus voltage is low.
series servo
2. Alarm occurrence in Fault in
only)
communication with the encoder
converter.
• The servo amplifier axis No. installed
2021
Axis set error the same base unit for the servo
(Note-1)
amplifier overlapped.
Table 2.3 Servo error (2000 to 2799) list
Error cause
Description
Error check
processing
Any time during
operation
• Servo amplifier
power on.
• Multiple CPU
system power on.
Any time during
operation.
Immediate
• Servo amplifier
power on.
• Multiple CPU
system power on.
Any time during
operation
APP - 21
Error
Corrective action
• Measure the input voltage (R, S,
T) with a voltmeter.
• Monitor with an oscilloscope to
check whether a momentary
power interruption has occurred.
• Review the power capacity.
• Replace the servo amplifier.
• Replace the servo amplifier.
• Replace the Multiple CPU
system.
• Replace the servo amplifier.
• Check the encoder cable
connector for disconnection.
• Replace the servomotor.
• Replace the encoder cable.
stop
• Check the combination of
encoder cable type (2-wire/4-
wire type) and servo parameter.
• Replace the servo amplifier.
• Check the encoder cable
connector for disconnection.
• Replace the servomotor.
• Replace the encoder cable.
• Remove the cause of the
converter alarm.
• Release the alarm.
• Set correctly so that the axis No.
does not overlap.