Zero Return Interlock Function; Positioning Completion Signal Output Waiting Time (Ver.1.20 Or Later) - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
7.8.9

Zero return interlock function

This function disables the start command before mechanical return.
1. Applicable positioning operations
• Operations applicable to the zero return
interlock setting
- 1-speed positioning operation
- Interrupt 1-speed constant quantity feed
- 2-speed positioning operation
- Interrupt 2-speed constant quantity feed
- Interrupt stop
- Multi-speed operation
- Linear interpolation
- Linear interpolation (interrupt stop)
- Table operation (individual)
- Table operation (simultaneous)
- Reciprocal movement instruction
(Ver.1.10 or later)
2. Setting items
The zero return interlock function applies when both of the following conditions are true.
• The zero return interlock setting of operation parameter 2 is ON (1).
• The zero return completed status is OFF.

7.8.10 Positioning completion signal output waiting time (Ver.1.20 or later)

Set the time after positioning is completed until the positioning completion flag turns ON.
Operation
The figure below shows the operation when the positioning completion signal output waiting time is set.
Scan in PLC
ON
READY
OFF
ON
START
command
OFF
Actual
ON
completion of
OFF
positioning
ON
Completion
of positioning
OFF
* Positioning operation shorter than a scan in PLC.
POINT
• When the positioning operation time is shorter than a PLC scan, the sequence program can only detect the
positioning completion signal if the positioning completion signal output waiting time is set to a time longer
than the scan time.
• Becomes 5000 ms when set at 5001 ms or more.
• If positioning is completed and an error occurs during the positioning completion signal output waiting time,
the positioning completion signal remains OFF.
• The setting of the positioning completion signal output waiting time is invalid during table operation.
→ For related parameters, control data and monitor data, refer to Section 7.11
→ For related parameters, control data and monitor data, refer to Section 7.11
*
OFF is
detected
Positioning completion
signal output waiting time
7 Before Starting Positioning Operation
• Operations inapplicable to the zero return
interlock setting
- JOG operation
- Manual pulse generator operation
- Mechanical zero return
- Variable speed operation
When the positioning
completion flag changes from
OFF to ON, the START
command turns ON.
ON is
detected
7.8 Other functions
1
2
3
4
5
6
7
8
9
10
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