Mr-J2M-B Detection Warning - Mitsubishi Electric MELSEC-Q QD75M User Manual

15 TROUBLESHOOTING

15.3.6 MR-J2M-B detection warning

@ in the indication field denotes the slot number of the base unit and # the axis
number of the servo amplifier.
LED display of
Classifica
the servo
Warning
tion of
amplifier
code
warnings
IFU
2092 —
2096 —
2102
FA.9F
2140 FA.E0
Servo
amplifier
2141
—
warnings
2143 —
2144 —
2146 FA.E6
2147 FA.E7
2149
FA.E9
Warning name
DRU
Absolute position detection
Open battery
@A.92# system battery voltage is
cable warning
low.
OPR setting OPR was not performed
@A.96#
error warning successfully.
Voltage of battery for
Battery
absolute position detection
—
warning
system reduced.
There is a possibility that
regenerative power may
Excessive
exceed permissible
— regenerative
regenerative power of built-in
load warning
regenerative brake resistor
or regenerative brake option.
There is a possibility that
Over load overload alarm 1 (error code:
@A.E1#
warning 2050) or 2 (error code: 2051)
may occur.
Absolute
position Absolute position encoder
@A.E3#
counter
pulses faulty.
warning
Parameter Parameter outside setting
@A.E4#
warning range.
Servo
— emergency EMG1-SG is open.
stop warning
Controller
An emergency stop signal is
emergency
—
input to the QD75.
stop warning
Servo ON signal is turned
Main circuit of
ON while the main circuit
—
warning
power is off.
15 - 104
Warning
Battery cable is open.
Battery voltage dropped to 2.8VDC or
less
Encoder cable is open.
Droop pulses remaining are greater
than the in-position range setting.
OPR was executed during operation
command.
Creep speed high.
Battery voltage fell to 3.2VDC or less.
Regenerative power increased to 85%
or more of permissible regenerative
power of built-in regenerative brake
resistor or regenerative brake option.
Load increased to 85% or more of
over load alarm 1 (error code: 2050)
or 2 (error code: 2051) occurrence
level.
Noise entered the encoder.
Fault of the encoder.
Parameter value set from QD75
controller is outside setting range.
Emergency stop was made valid.
(EMG1-SG was opened.)
EMG (6 pin) or EMG* (16 pin) in the
SSCNET cable is open.
Fault of connector in the servo
amplifier.
Fault of connector in the QD75.
A "watchdog error" will be occurred in
the QD75.
Servo ON signal is turned ON while
the main circuit power is off.
MELSEC-Q
Cause