Mitsubishi Electric RD77MS16 - Page 131

3 MAJOR POSITIONING CONTROL
3.2 Setting the Positioning Data
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3
Current feed value
The following table shows the "[Md.20] Current feed value" during position-speed switching control corresponding to the
"[Pr.21] Current feed value during speed control" settings.
Switching time from position control to speed control
It takes 1 ms from the time the position-speed switching signal is turned ON to the time the position-speed switching latch flag
([Md.31] Status: b5) turns ON.
"[Pr.21] Current feed value during speed control" setting [Md.20] Current feed value
0: Do not update current feed value The current feed value is updated during position control, and the current feed
value at the time of switching is maintained as soon as position control is
switched to speed control.
1: Update current feed value The current feed value is updated during position control and speed control.
2: Zero clear current feed value The current feed value is updated during position control, and the current feed
value is cleared (to "0") as soon as position control is switched to speed
control.
(c) Current feed value zero cleared
0
(b) Current feed value updated
Updated
(a) Current feed value not updated
t
Maintained
V
Current feed
value
t
V
Current feed
value
t
V
Speed
control
Speed
control
Speed
control
Current feed
value
Updated
Position
control
Position
control
Updated
Position
control
Position-speed switching
signal
Position-speed switching
latch flag
OFF
ON
OFF
ON
1 ms