15 - 6
MELSEC-Q
15 TROUBLESHOOTING
15.2 List of errors
The following table shows the error details and remedies to be taken when an error
occurs.
15.2.1 QD75 detection error
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
— 000 (Normal status) — —
001 Faults
Fatal errors
002 Internal circuit fault
Hardware is faulty. The system stops.
101
PLC READY OFF
during operation
A PLC READY signal (Y0) is turned
OFF during operation.
The system stops with the setting
(deceleration stop/sudden stop) of the
detailed parameter 2 Sudden stop
selection (stop group 2).
(Note that the deceleration stop only
occurs during the manual pulse
generator operation.)
102 Servo READY OFF
The Servo READY signal is turned
OFF during operation.
The system stops immediately.
103
Test mode faults
during operation
The personal computer cannot
communicate with the CPU unit.
The system stops with the setting
(deceleration stop/sudden stop) of the
detailed parameter 2 Sudden stop
selection (stop group 2).
(Note that the deceleration stop only
occurs during the manual pulse
generator operation.)
104
Hardware stroke
limit (+)
The hardware stroke limit upper limit
signal is input.
105
Hardware stroke
limit (–)
The hardware stroke limit lower limit
signal is input.
The system stops with the setting
(deceleration stop/sudden stop) of the
detailed parameter 2 Sudden stop
selection (stop group 1).
(Note that the deceleration stop only
occurs during the manual pulse
generator operation.)
106
Stop signal ON at
start
Start is requested when a stop signal
is turned ON.
The system does not start positioning.
107
READY OFF
ON
during BUSY
The PLC READY signal is turned
from OFF to ON when BUSY signal
is turned ON.
• The QD75 READY signal (X0) is not
turned ON.
• The system does not start the next
positioning.
Common
errors
108 Start impossible
Start is requested when start cannot
be made in the axis operation state.
The system does not start positioning.
To Next Page
Loading...
Need help?
General
