IAI America PDR-101-MW - Manual (Page 42)

32
z
Note that the actuator moves in the negative direction with a forward pulse (forward for the motor) and
in the positive direction with a reverse pulse (reverse for the motor). (Opposite applies to folded motor
type actuators).
z When considering the forward/reverse direction, pay attention to the settings of the host controller or
connection of PP and /PP as well as NP and /NP.
* The rotation direction of the motor is indicated by setting CCW to forward, as seen from the axis edge
of the load side.
+
Related parameters
It is possible to set six types of command pulse modes by the command pulse input mode, a position
control parameter.
Command pulse-train
mode
Input
terminal
Forward Reverse
Forward pulse
train
PP x /PP
Reverse pulse
train
NP x /NP
A forward pulse train indicates motor revolutions in the forward direction, while a reverse pulse
train indicates motor revolutions in the reverse direction.
Pulse train PP x /PP
Sign NP x /NP
A command pulse indicates motor revolutions and its sign indicates the rotating direction of the
motor.
PP x /PP
Phase A/B pulse
train
NP x /NP
Neg
at
ive lo
gic
Motor revolutions and rotating direction are specified by phases A/B (4 multiplications) with a
90-degree phase difference.
Forward pulse
train
PP x /PP
Reverse pulse
train
NP x /NP
Pulse train PP x /PP
Sign NP x /NP
PP x /PP
P
osit
ive lo
gic
Phase A/B pulse
train
NP x /NP
Low High
Caution
High
Low