Speed Control (I) - Mitsubishi Electric SV13/22 Programming Manual

7. POSITIONING CONTROL
7.12

Speed Control (I)

Servo
Instruction
VF
VR
[Control Details]
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(1) Speed control of the axes designated in the sequence program positioning
commands.
(2) Control includes positioning loops for control of servo amplifiers.
(3) Speed control (I) uses the VF (forward) and VR (reverse) servo instructions.
Number of
Positioning
Controllable
Method
Axes
 ∆
!
1
(1) Controls the axis at the designated speed between the start of servomotor
operation and the input of the stop command.
• VF......... movement in forward direction
• VR ........ movement in reverse direction
(2) The current value does not change at zero.
V
Set
Start
speed
speed
control
search engine
Items Set by Peripherals
Common Arc
∆
!
Operation speed
Fig. 7.26 Speed Control (I)
7 − 60
Parameter Block
∆ ∆ ∆ ∆ ∆ ∆ ∆
Stop command
received
Stop
Others
∆ ∆
OK
! : Must be set
∆ : Set if required
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