Omron OMNUC G5 R88M-K series User Manual page 284

8-2 Gain Parameters
Pn101
Speed Loop Gain 1
Setting
range
*1.It is 180 for a Drive with 200 V and 1 kW or greater, or with 400 V.
 Determine speed loop responsiveness.
 The setting for the speed loop gain must be increased to increase the position loop gain and
improve the responsiveness of the entire servo system. Setting too high, however, may result in
vibration.
 The setting unit for Pn101 is Hz if the Inertia Ratio (Pn004) is set correctly.
When the speed loop gain is changed, the response is as shown in the following diagram.
Pn102
Speed Loop Integral Time Constant 1
Setting
8
range
*1.It is 310 for a Drive with 200 V and 1 kW or greater, or with 400 V.
 Set the speed loop integration time constant.
 The smaller the set value, the faster the error comes close to 0 when stopping. Set to 9,999 to
maintain integration. Set to 10,000 to invalidate the effect of integration.
When the speed loop integral time constant is changed, the response is as shown in the
following diagram.
Pn103
Speed Feedback Filter Time Constant 1
Setting
range
 Set the time constant for the low pass filter (LPF) after speed detection to one of 6 levels (0 to 5).
 Increasing the set value increases the time constant and decreases the noise generated by the
motor. Responsiveness, however, also decreases.
 Normally, use the default set value.
8-9
1 to 32767 Unit
Motor speed
1 to 10000 Unit
Motor speed
0 to 5 Unit
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Default
0.1 Hz
Overshooting occurs if the speed loop gain is high.
(Vibration occurs if the gain is too high.)
Speed loop gain is low.
Default
0.1 ms
Overshooting occurs if the speed loop integral
time constant is small.
Speed loop integral
time constant is large.
Default

Data
*1
270
setting attribute
Data
*1
210
setting attribute
Data
0
setting attribute
All
B
Time
All
B
Time
All
B