Mitsubishi Electric MELSEC iQ-R Series User Manual page 303

Precautions during control
• The deceleration start flag function is valid for the control method of "1-axis linear control", "2-axis linear interpolation
control", "3-axis linear interpolation control", "4-axis linear interpolation control", "speed-position switching control" or
"position-speed switching control". In the case of linear interpolation control, the function is valid for only the reference axis.
Refer to "Combination of Main Functions and Sub Functions" in the following manual for details.
MELSEC iQ-R Motion Module User's Manual (Startup)
• The deceleration start flag does not turn ON when the operation pattern is "continuous positioning control" or "continuous
path control".
• The deceleration start flag function is invalid for a home position return, JOG operation, inching operation, manual pulse
generator operation, speed-torque control and deceleration made with a stop signal.
• The deceleration start flag does not turn ON when a speed change or override is used to make deceleration.
• If a target position change is made while the deceleration start flag is ON, the deceleration start flag remains ON.
Operation pattern: Positioning complete (00)
Execution of target position change request
[Md.48] Deceleration start flag 0
• When the movement direction is reversed by a target position change, the deceleration start flag turns ON.
Operation pattern: Positioning complete (00)
Execution of target position change request
[Md.48] Deceleration start flag 0
• During position control of position-speed switching control, the deceleration start flag is turned ON by automatic
deceleration. The deceleration start flag remains ON if position control is switched to speed control by the position-speed
switching signal after the deceleration start flag has turned ON.
• If the condition start of a block start is not made since the condition is not satisfied, the deceleration start flag turns ON
when the shape is "End".
• When an interrupt request during continuous operation is issued, the deceleration start flag turns ON at a start of
deceleration in the positioning data being executed.
Setting method
To use the "deceleration start flag function", set "1" to the following control data using a program.
The set data is made valid on the rising edge (OFF to ON) of the PLC READY signal [Y0].
Setting item
[Cd.41] Deceleration start flag valid
Refer to the following for the setting details.
Page 512 Control Data
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Deceleration start point
1
1
Setting Setting details
value

Set whether the deceleration start flag function is made valid or
invalid.
0: Deceleration start flag invalid
1: Deceleration start flag valid
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Time
Time
Buffer memory address
Axis 1 to axis 16
5905
8 CONTROL SUB FUNCTIONS
8.8 Other Functions
8
301