ProNet Plus Series AC Servo User's Manual
4.6 Operating Using Position Control
NOTE: this function is available for ProNet-□□□MG servo drives only.
Set the following parameters for position control using pulse trains.
Control mode selection: position control(pulse train reference)
A block diagram for position control is shown as below.
Differential
Feed forward
B
A
Feed forward
filter time
constant
Offset
Positioning
complete
Current loopSpeed loop
K
P
Error counter
Smoothing
×1
×2
×4
dividing
×4
B
A
Servodrive(in position control)
Pn112 Pn201
Pn202
Pn113
Pn111
Pn500
Pn004.2
Pn204
Pn201
Pn202
Pn200
Reference pulse
PG signal output
Pn104
M
PG
Servomotor
Encoder
-
+
+
+
+
4.6.1 Basic Setting in Position Control
(1)Setting a reference pulse sign
(2)Settingreference input filter for open collector signal
When pulse is difference input, servo receiving pulse frequency≤4M
When pulse is difference input, servo receiving pulse frequency≤650K
When pulse is difference input, servo receiving pulse frequency≤150K
(3)Setting a Reference Pulse Form
Set the input form for the servo drive using parameter Pn004.2 according to the host controllerspecifications.
Forward Rotation
Reference
Sign+pulse train
(positive logic)
(factory setting)
PULS
(CN1-30)
SIGN
(CN1-32)
H
PULS
(CN1-30)
SIGN
(CN1-32)
L