Basics Of Positioning Control; Positioning Speed - Mitsubishi Electric SV13/22 Programming Manual

7. POSITIONING CONTROL
7. POSITIONING CONTROL
7.1

Basics of Positioning Control

7.1.1

Positioning speed

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This section describes the positioning control methods.
This section describes the common items for positioning control, which is
described in detail from Section 7.2.
The positioning speed is set using a servo program. See Section 6 for details about
servo programs.
The actual positioning speed is determined by the positioning speed setting in the
servo program and the speed limit value, according to the following relationship:
• if positioning speed setting < speed limit value
positioning occurs at set positioning speed;
• if positioning speed setting > speed limit value
positioning occurs at speed limit value.
Examples
(1) If the speed limit value is 120,000 mm/min. and the positioning speed
setting is 100,000 mm/min., the positioning speed is controlled as follows.
(2) If the speed limit value is 100,000 mm/min. and the positioning speed
setting is 120,000 mm/min., the positioning speed is controlled as follows.
V
120000
100000
Acceleration time
search engine
V
Speed limit value
120000
100000
Acceleration time Deceleration time
Positioning speed
Speed limit value
(becomes the actual positioning speed)
Deceleration time
7 − 1
Positioning speed
t
t