Outline Of Stopping - Mitsubishi Q Series User Manual

1 PRODUCT OUTLINE

1.2.2 Outline of stopping

Stop factor
PLC CPU error
Software stroke limit
upper/lower limit error
QD70 error
Other error
"Axis stop signal" from PLC CPU turned
ON
1: By making parameter setting, you can set the software stroke limit valid/invalid. When the stroke limit is set invalid, a
deceleration stop is not made. (Refer to Section 4.2.)
2: If an illegal positioning data setting value caused an error during position control (operation pattern: continuous path
control), an immediate stop is made at the positioning data preceding that illegal setting value. (Refer to Section 9.1.2.)
3: For position control (operation pattern: continuous path control), you can make parameter setting to select the
stopping method (position match stop or deceleration stop). (Refer to Section 4.2.)
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The possible causes of a control stop are as follows.
(1) Control ended normally
(2) An error occurred in the PLC CPU
(3) An error occurred in the QD70
(4) The axis stop signal from the PLC CPU turned ON
Stop processings performed in the above cases are outlined in the following table.
(Except the case (1) where control stopped normally)
Stopped
axis
All axes
Axis by axis
1
Axis by axis
Axis by axis
Stop after multiple axes simultaneous start under positioning control
The axes started will not stop simultaneously. The stop command (axis stop signal
ON) must be given to each axis.
Axis operation
status ( Md. 4 )
OPR control
after stop
Error
Error
Error
Stopped
MELSEC-Q
Stop processing
Positioning
JOG operation
control
Deceleration stop
Deceleration stop
2
Deceleration stop
3
Deceleration stop
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