Multi-Speed Operation - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
9.8

Multi-Speed Operation

The multi-speed operation is a positioning procedure, available only in the table operation.
For details on controlling by table operation, and changing the operation speed, refer to the following sections.
→ For details on the related parameters, control data, and monitor data, refer to Section 9.13
1. Operation
Speed
START command
Positioning completion
1) Set the operation information, speed information, and position (address) information for each table.
2) When activating the START command at the table operation start number with the specified multi-speed
operation, the 20SSC-H starts the positioning operation from the designated table number.
(The positioning completion signal is turned OFF.)
3) The operation continuously executes the table positioning until the END command. (above figure)
4) The work piece decelerates to stop at the specified position (address) in the table before the END
command. When the operation ends, the positioning completion signal turns ON.
POINT
• In multi-speed operation, preparation for the next table number operation is performed simultaneously with
the current operation.
If a travel distance to shift the operation speed is less than the pulses to accelerate/decelerate, or if the
travel time is too short (at 50 ms or less), the current operation does not continue and temporarily stops.
• When using m code in multi-speed operation, use the With mode.
With the m code in After mode, operation does not continue from the table since the 20SSC-H suspends
the operation shift to the next table until the m code turns OFF .
• Multi-speed operation ends if another operation information is performed during the multi-speed operation.
2. Operation information
Set multi-speed operation, absolute address specification, relative address specification and the End
command in the operation information.
3. Speed information
The actual operation speed is "operation speed 1 × override setting."
Operation speed 1 can be changed using the operation speed change function except under the following
conditions.
• During deceleration operation
• When the speed change disable during operation signal is ON.
→ For details on the operation speed change, refer to Section 7.6
Acceleration
time
(table No.1)
Speed
information
Position
information
ON
OFF
ON
OFF
→ For details on the table operation, refer to Chapter 10
→ For details on the torque limit, refer to Subsection 7.8.3
→ For details on the STOP command, refer to Section 7.4
Deceleration
Maximum speed
(table No.2)
Speed
(table No.3)
information
Speed
information
Position
information
→ For details, refer to Chapter 10
9 Positioning Control
9.8 Multi-Speed Operation
time
Position
information
Time
ON
1
2
3
4
5
6
7
8
9
10
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