Mitsubishi Electric MELSEC-Q-MR-JE-C Reference Manual page 32

Function overview
Item
Applicable hardware and
software
Language
Number of basic steps
Function description
Restrictions and precautions
FB operation type
3 FB LIBRARY
30
3.2 Details of the FB Library
Description
Applicable CPU
Applicable engineering tool
Structured Text
592 steps
This FB stops the control of the specified axis.
This FB is executed when Execute turns ON, and Busy turns ON when the processing is normally started.
Done turns ON when the processing is completed and the axis stops.
The axis status is in the DiscreteMotion status after Execute turns ON until the axis velocity reaches 0. The axis status
transits to Standstill when Done turns ON.
When the continuous control FB is executed while this FB is in execution, the operation varies depending on the control
which was performed before the execution of this FB.
When the home position return control or the position control was performed before the execution of this FB, an error occurs
in the continuous control FB, and the stop operation continues.
When the velocity control or the torque control was performed before the execution of this FB, CommandAborted turns ON
in this FB, and the control is switched to the continuous control FB after a deceleration stop.
When Execute is turned OFF while this FB is in execution, the stop operation continues.
Another MC_Halt cannot be executed.
When an error has occurred in the FB, this FB turns ON Error and stores an error code in ErrorID.
For details of error codes, refer to  Page 61 Troubleshooting.
• Deceleration time of the input label is valid only in the velocity control. At the home position return, the axis stops following
the setting of "Home position return acceleration time constant (PT61)" or "Home position return deceleration time
constant (PT62)" depending on the setting of "Home position return deceleration time constant selection (PT60)" of the
servo amplifier parameter.
In the execution of the positioning control FB, the deceleration time specified with the positioning control FB in execution
is applied. In the torque control, the axis decelerates to stop with the torque slope specified with the torque control.
• While this FB is in execution, the home position return and the positioning control FB cannot be executed.
• This FB cannot be executed when the positioning control FB has completed positioning.
Pulsed execution (multiple scan execution type)
QnUDVCPU
GX Works2