224
3 PARAMETERS FOR POSITIONING CONTROL
3.13 Parameter Block
■
Actual deceleration time
When the positioning speed is slower than the speed limit value, adjust the acceleration in the following procedure.
• Shorten time of maximum acceleration section. (Pattern (2), (3))
• Reduce maximum acceleration and acceleration increase/decrease time of acceleration section 1 and 2. (Pattern (4))
Positioning
speed
Pattern Positioning
speed
Description
Actual Deceleration time
Negative actual maximum
acceleration
High
Low
(1)
Positioning
speed = S.R.
It accelerates with the
deceleration section 1,
maximum negative
acceleration section and
deceleration section 2.
ADT
DmaxA
(2)
Vdac <
Positioning
speed < S.R.
Maximum negative
acceleration section is
shortened than pattern 1.
(3)
Positioning
speed = Vdac
• No maximum negative
acceleration section
• It decelerates with only
deceleration section 1 and
deceleration section 2.
D1T + D2T
(4)
Positioning
speed < Vdac
• No maximum negative
acceleration section
• Maximum acceleration of
deceleration section 1 and
deceleration section 2, and
negative acceleration
increase/decrease time are
shortened.
ADT -
(S.R.-Positioning speed)
DmaxA
(D1T
+
D2T)
×
(Positioning speed/Vdac) DmaxA
×
(Positioning speed/Vdac)
Summary of Contents for MELSEC iQ-R16MTCPU
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