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Mitsubishi QD75M4 User Manual

Mitsubishi QD75M4
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15 - 78
MELSEC-Q
15 TROUBLESHOOTING
LED indicator
of servo
amplifier
Classifica
tion of
errors
Error
code
IFU DRU
Error name Description Cause
Interface unit connection fault.
Interface unit failure.
2022
FA.1C
Base unit bus
error 1
There is error in communication
between interface unit and drive
unit.
Base unit failure.
Drive unit connection fault.
Drive unit failure.
2023
FA.1D
Base unit bus
error 2
There is error in communication
between interface unit and drive
unit.
Base unit failure.
Drive unit connection fault.
Base unit failure.
2024
FA.1E
Servo amplifier
mounting error
Drive unit came off the base unit
after initialization.
Faulty parts in servo amplifier.
The encoder connecter is
disconnected.
Encoder fault.
2020
@A.20#
Encoder error 2
Communication error occurred
between encoder and drive unit.
Encoder cable faulty. (Wire
breakage or shorted)
Power input wires and servo motor
output wires are in contact at CNP2.
Sheathes of servo motor power
cables deteriorated, resulting in
ground fault.
2024
@A.24#
Motor output
side ground
fault
Servomotor output (U, V, W
phase) ground fault.
Main circuit of drive unit failed.
Battery unit voltage low.
Absolute position data in error.
Battery cable or battery fault.
Servo
amplifier
errors
2025
@A.25#
Absolute
position lost
Power was switched on for the
first time in the absolute position
detection system.
Super capacitor of the absolute
position encoder is not charged.

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Mitsubishi QD75M4 Specifications

General IconGeneral
TypePositioning Module
Number of Axes4
Positioning Speed1 to 4, 000, 000 pulses/s
JOG Speed1 to 4, 000, 000 pulses/s
Absolute Position DetectionSupported
Origin ReturnSupported
Operating Temperature0 to 55°C
Storage Temperature-25 to 75°C
Communication InterfaceRS-422/485
Product SeriesMELSEC-Q
Control MethodPulse Train Output
Maximum Pulse Output Frequency4 Mpps
Positioning Range±2, 147, 483, 647 pulses
Error Counter±32, 767 pulses
Manual Pulse Generator Input1 input/axis
Number of Positioning Data600 data/axis
Interpolation Operation2-axis linear interpolation
Protection FunctionOvercurrent, overheat

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