Mitsubishi Electric MELSEC iQ-R RD75P4, Руководство пользователя

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1 STARTING AND STOPPING
1.1 Starting
25
1
Control details
■
Length of time before the positioning starts
While [Cd.43] Analysis mode setting is 1: Pre-analysis mode, the positioning data specified in [Cd.3] Positioning start No. is
analyzed. The following shows the start timing of positioning data analysis.
• When the analysis mode is changed to the pre-analysis mode (Timing when the setting of [Cd.43] Analysis mode setting is
changed to 1: Pre-analysis mode)
• When the positioning start No. is changed after the analysis of the positioning data has been completed (Timing when the
setting of [Cd.3] Positioning start No. is changed while [Md.61] Analysis complete flag is 1: Analysis completed)
• When the positioning operation is completed and [Md.26] Axis operation status turns to 0: Standby However, When M code
ON signal [X4, X5, X6, X7] is on, the analysis of the positioning data will not start until M code ON signal [X4, X5, X6, X7]
turns off.
Once the analysis of the positioning data is completed, [Md.61] Analysis complete flag turns to 1: Analysis completed. The
quick start is executed by inputting a start trigger while [Md.61] Analysis complete flag is 1: Analysis completed. After the
quick start is executed, [Md.61] Analysis complete flag turns to 0: Analysis not completed.
The pre-analysis mode is changed to the normal analysis mode not only by setting [Cd.43] Analysis mode setting to 0: Normal
analysis mode, but also by the following factors. When the setting of [Cd.43] Analysis mode setting is changed to 0: Normal
analysis mode, the positioning data which has already been analyzed is cleared. (In the interpolation control, the positioning
data is cleared when the reference axis enters the normal analysis mode.)
• When an error is detected
• When PLC READY signal [Y0] is turned on and off
• When the positioning operation is stopped by a stop signal
If any of the three causes described above occurs, the reference axis or interpolation axis enters the normal analysis mode in
the interpolation control.
The shortest time between the completion of the positioning control and the starting of the next positioning control is t1 + t2.
t1 t2
0.88 to 1.77ms External command signal: 20

s
Positioning start signal: 8

s
t
t2
t1
ON
OFF
v
Md.26
Cd.43
Md.61
0: Normal analysis mode 1: Pre-analysis mode
0: Analysis not completed 1: Analysis completed
Waiting for a start trigger
0: Analysis not completed
Start trigger
BUSY signal [XC, XD, XE, XF]
Operation by a user
Operation by the system
Analysis mode setting
Analysis complete flag
Axis operation status
Standby Analyzing Position control