Omron OMNUC G5, User Manual, Page: 398 / 550

8-33
8-4 Analog Control Parameters
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameters Details
Œ
Corresponding speed limit values during torque control is shown in the table below.
Explanation of Set Values
*1. The driver internal process count direction relative to the external scale of phase-AB output type is
explained below.
Œ
For the external scale connection direction, set the direction so that count-up occurs when the motor
shaft is rotating in the CCW direction, and count-down occurs when the motor shaft is rotating in the
CW direction If the connection direction cannot be selected due to installation conditions, etc., the count
direction can be reversed using External Feedback Pulse Direction Switching (Pn326).
Œ
Take note that if Pn000 = 1, the scale count direction becomes opposite to the count direction used
for monitoring the total external scale feedback pulses, etc.
If Pn000 = 0, the count direction matches the count direction for monitoring.
Œ
Even when the driver speed is within the specified range, an acceleration error will occur if the
motor shaft rotation speed exceeds the maximum speed.
Pn322
Reverse Direction Speed Limit Value Setting
Setting
range
0 to 20,000 Unit r/min
Default
setting
Power OFF
and ON
−
Torque
Torque
Command/
Speed Limit
Selection
(Pn327)
Speed
Limit
Value
Setting
(Pn321)
Reverse
Direction
Speed Limit
Value Setting
(Pn322)
Zero Speed
Designation
Selection
(Pn315)
Zero speed
clamp
Analog torque
command
direction
Speed limit
value
0 0 to 20,000 Not affected
0 Not affected
Not affected
Pn321 set value
1 to 3
OFF Pn321 set value
ON 0
1
0 to 20,000 0 to 20,000 0 Not affected
Forward direction Pn321 set value
Reverse direction Pn322 set value
0 to 20,000 1 to 20,000 1 to 3 OFF
Forward direction Pn321 set value
Reverse direction Pn322 set value
0 to 20,000 1 to 20,000 1 to 3 ON Not affected 0
Pn323
External Feedback Pulse Type Selection
Setting
range
0 to 2 Unit
−
Default
setting
Power OFF
and ON
Yes
Full closing
Set value Explanation
0 Phase-AB output type *
1
1 Serial communications type (Incremental encoder specifications)
2 Serial communications type (Absolute encoder specifications)
Count-down direction Count-up direction
EXB is 90
°
ahead of EXA.
t1
>
0.25
μ
s
t2
>
1.0
μ
s
EXB is 90
°
behind EXA.
t1
>
0.25
μ
s
t2
>
1.0
μ
s
t1
t2
t1
t2
EXA
EXB
EXA
EXB