Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual page 327

• The CHANGE signal from external source is effective during "[Rq.1145] Speed/position switching enable signal (R:
M34485+32n/Q: M3205+20n)" is on only. If "[Rq.1145] Speed/position switching enable signal (R: M34485+32n/Q:
M3205+20n)" turns on after the CHANGE signal turned on, it does not change from speed control to position control and
speed control is continued.
[Rq.1145] Speed/position
switching enable signal
(R: M34485+32n/Q: M3205+20n)
CHANGE signal input
*1
from external source
*1 The CHANGE input signal from external source uses the input set for the DOG signal in the external signal parameter. When "normally
open contact input" is set, CHANGE input occurs at the CHANGE signal on, and when "normally closed contact input" is set, CHANGE
input occurs at the CHANGE signal off. (Page 189 External Signal Parameter)
■Feed current value processing
The feed current value is as follows by turning "[Rq.1152] Feed current value update command (R: M34492+32n/Q:
M3212+20n)" on/off at the speed/position switching control start.
"[Rq.1152] Feed current value
update command
(R: M34492+32n/Q: M3212+20n)"
OFF
ON
"[Rq.1152] Feed current value update command (R: M34492+32n/Q: M3212+20n)" OFF
Feed current value
[Rq.1152] Feed current value
update command
(R: M34492+32n/Q: M3212+20n)
"[Rq.1152] Feed current value update command (R: M34492+32n/Q: M3212+20n)" ON
Feed current value
* *
[Rq.1152] Feed current value
update command
OFF
(R: M34492+32n/Q: M3212+20n)
V
Setting travel value
Speed
controlling
CHANGE signal valid
ON
OFF
Description
• The feed current value is cleared to "0" at the start.
• The feed current value is updated from the start (speed control).
• The feed current value after stop is as follows:
Feed current value after stop = Travel value during speed control + Travel value for position control
• The feed current value is not cleared at the start.
• The feed current value is updated from the start (speed control).
• The feed current value after stop is as follows:
Feed current value after stop = Address before speed control start + Travel value during speed control + Travel
value for position control
CHANGE input
Speed Position
controlling controlling
0
* *
Update feed current value
Clear feed current value
OFF
CHANGE input
Speed Position
controlling controlling
* *
Update feed current value
ON
t
Position
controlling
5.15 Speed/Position Switching Control
5 POSITIONING CONTROL
5
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