8-16
8-2 Gain Parameters
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
   8
Parameter Details
Explanation of Settings
(√: Enabled, −: Disabled)
 Select the conditions for switching between gain 1 and gain 2 when the Gain Switching Input
Operating Mode Selection (Pn114) is set to 1.
The gain is always gain 1 regardless of the gain input if the switching input is not assigned when
Pn120 = 2.
*1. The Gain Switching Delay Time in Speed Control (Pn121) becomes effective when the gain is 
switched from 2 to 1.
*2. The Gain Switching Hysteresis in Speed Control (Pn123) is defined as shown in the drawing below.
*3. The variation means the change amount in a millisecond (ms).
E.g. The set value is 200 when the condition is a 10% change in torque in 1 millisecond.
*4. The meanings of the Gain Switching Delay Time in Speed Control (Pn121), Gain Switching Level in 
Speed Control (Pn122), and Gain Switching Hysteresis in Speed Control (Pn123) are different from 
normal if this is set to 10. (Refer to Figure D)
Pn120
Switching Mode in Speed Control
Setting 
range
0 to 5 Unit −
Default 
setting
0
Power OFF 
and ON
−
Speed
Set 
value
Explanation
Gain switching conditions
Gain 
Switching 
Delay Time in 
Speed Control
(Pn121) 
*1
Gain 
Switching 
Level in Speed 
Control 
(Pn122)
Gain Switching 
Hysteresis in 
Speed Control
(Pn123) 
*2
0 Always the Gain 1 (Pn100 to Pn104) −−−
1 Always the Gain 2 (Pn105 to Pn109)  −−−
2
Switching using gain switching input 
(GSEL) for CN1 pin 27 
−−−
3
Torque command variation (Refer to 
Figure A)
√
√ 
*3
 (0.05%)
√ 
*3
(0.05%)
4
Speed command variation (Refer to 
Figure B)
√
√ 
*4
(10 r/min/s)
√ 
*4
 (10 r/min/s)
5 Speed command (Refer to Figure C) √√ (r/min) √ (r/min)
Pn122
0
Pn123
Pn121
Gain 1
Gain 2
Gain 1