IAI America SCON-C - Manual (Page 186)

168
(9) Feedback pulse pattern
No. Name Symbol Unit Input range Default setting
69 Feedback pulse pattern FBPT - 0 to 2 0
You can set a desired pattern in which to output feedback pulses.
If the actuator encoder is not a serial encoder, the
phase-Z signal is output directly.
If the actuator uses a serial encoder, the phase-Z pulse
is output within a mechanical-angle range of
0.5 from
the zero (home) position. Based on the communication
cycle with the encoder, this precision can be assured
when the motor speed is 100 rpm or below.
* The actuator is using a serial encoder if the number
of encoder pulses is 16,384 (pulses/rev).
(10) Feedback-pulse
pattern polarity
No. Name Symbol Unit Input range Default setting
70 Feedback-pulse pattern polarity FBPT - 0 to 1 0
You can set a desired polarity to be applied to the feedback pulse pattern.
Setting 0: Positive logic
Setting 1: Negative logic
ZFB /ZFB
Command pulse-train
pattern
Input terminal Forward Reverse
Neg
a
ti
ve lo
gic
P
osit
ive lo
gic
Forward pulse train
Reverse pulse train
A forward pulse train indicates motor revolutions in the forward direction, while a reverse pulse train indicates motor
revolutions in the negative direction.
Pulse train
Sign
Command pulses indicate motor revolutions, while a command sign indicates a rotating direction.
Phase-A/B pulse
train
Phase-A/B x4 pulses with a 90
 phase difference indicate motor revolutions and a rotating direction.
Forward pulse train
Reverse pulse train
Pulse train
Sign
Phase-A/B pulse
train
Setting
2
1
0
2
1
0
AFB /AFB
BFB /BFB
AFB /AFB
BFB /BFB
AFB /AFB
BFB /BFB
AFB /AFB
BFB /BFB
AFB /AFB
BFB /BFB
AFB /AFB
BFB /BFB
Low
Low
High
High