5-4
5-1 Position Control
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
   5
Basic Control Mode
The settings for command pulse rotation direction and command pulse mode are as follows.
Pn006 Pn007
Command 
pulse pattern
Signal 
name
Forward direction 
command
Reverse direction 
command
0
0 or 2
90° phase 
difference, 
2-phase pulse 
(phase A 
+ phase B)
CW
CCW
1
Forward 
direction pulse 
train + Reverse 
direction pulse 
train
CW
CCW
3
Pulse train 
+ Sign
CW
CCW
1
0 or 2
90° phase 
difference, 2-
phase pulse 
(phase A 
+ phase B)
CW
CCW
1
Forward 
direction pulse 
train + Reverse 
direction pulse 
train
CW
CCW
3
Pulse train 
+ Sign
CW
CCW
 
t1
t1
Phase B
t1
t1
t1
Phase A
t1
t1
t1
Phase B is 90° behind phase A.Phase B is 90° ahead of phase A.
 
 
 
 
 
t4
t4
t5
t5
t6
L
H
t6
t6
t6
 
 
 
 
 
 
 
Phase B
t1
t1t1
t1
t1
Phase A
t1
t1
t1
Phase B is 90° ahead of phase A.Phase B is 90° behind phase A.
 
 
t2
t2
t2
t2
t3
Symbol
Allowable 
input 
maximum 
frequency
Minimum required duration [μs]
t1 t2 t3 t4 t5 t6
+CWLD, -CWLD, +CCWLD, 
-CCWLD
4 Mpps 0.25 0.125 0.125 0.125 0.125 0.125
+CW, -CW, 
+CCW, -CCW
Line driver 500 kpps 211111
Open collector 200 kpps 5 2.5 2.5 2.5 2.5 2.5