Error Check By Led Indication - Mitsubishi Electric MELSECQ Series User Manual

13 TROUBLESHOOTING

13.4 Error check by LED indication

Details of indication
Goes OFF
Goes ON
Flashes
RUN AX5
AX6
AX7
ERR. AX8
RUN AX5
AX6
AX7
ERR. AX8
RUN AX5
AX6
AX7
ERR. AX8
RUN AX5
AX6
AX7
ERR. AX8
RUN AX5
AX6
AX7
ERR. AX8
RUN AX5
AX6
AX7
ERR. AX8
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The states of QD70 and each axis control can be confirmed by the LEDs located on
the front panel of the QD70 main module.
QD70P8
RUN
ERR.
Each axis can be monitored by the states of the LEDs.
The operation and indications of the LEDs are as shown below.
Points to be confirmed
Extinguishment of
AX1
RUN LED
AX2
(The states of ERR.
AX3
and AX1 to AX8 are
AX4
undefined)
AX1
Lighting of RUN LED,
AX2
Extinguishment of
AX3
ERR LED
AX4
AX1
AX2
Lighting of ERR LED
AX3
AX4
AX1
AX2
Extinguishment of AX1
to AX8 LEDs
AX3
AX4
AX1
Lighting of AX1 (Same
AX2
even if the other axis
AX3
is lit)
AX4
AX1
Flashing of ERR LED
AX2
Flashing of AX1 LED
(Same even if the
AX3
other axis flashes)
AX4
search engine
AX5 AX1
AX6 AX2
AX7 AX3
AX8 AX4
Error
If the RUN LED does not light up even when the
The hardware is
power is turned ON, the module may be out of
faulty.
order. Replace the module with a new one.
The module is
normal.
An operation condition setting error or installation
programmable controller CPU type error occurs.
(The setting and programmable controller CPU
System error
types are outside the specification range.) Set the
programmable controller CPU type to a one
contained in the specification.
During axis stop,
during axis standby
This lights up from the positioning control start
During axis until the positioning control is completed, stopped
operation temporarily, or stopped by error (corresponding at
a ratio of 1 : 1 to BUSY signals).
Check the error observed on the GX
Configurator-PT, or the buffer memory batch
Axis error processing monitor of the GX Developer and
correct the applicable parameters and positioning
data.
MELSEC-Q
Remedy
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