Mitsubishi Electric SV13/22 Programming Manual page 227

7. POSITIONING CONTROL
SVST instruction
VPF/VPR instruction
VPSTART
M1805 20n
Set speed
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(b) If the stop occurred during position control, then position control continues
until the positioning reaches the set travel value.
The travel value after the restart is calculated as follows:
Travel value
after restart
(P2)
V
Operation speed
Speed/position
switching control
start
OFF
+
Fig. 7.28 Restarting During Speed Control
(3) The speed at restart is the speed stored when the VPF/VPR instruction
occurred.
Therefore, even if a speed change occurred before the stop, control restarts at
the speed set at the time of VPF/VPR instruction execution.
V
Speed control
Fig. 7.29 Restarting After Speed Change
search engine
Travel value
Set travel
= = = = + + + +
be-
value (P)
fore stop (P1)
Stop command
CHANGE signal ON
received
Stop
P1
Speed control Position control
ON
Speed change Operation speed
Stop command
Restart
7 − 75
P1:Travel value before stop
P2:Travel value after restart
Restart
P2
t
Position control
CHANGE signal ON
t
Speed Position
control control