Maxsine EP3 AC Series, User Manual

Page: 139 / 246

5.4 Parameter description in detail
129
reduce the position tracking error, and enhance the response. It is easy to cause overshoot or
oscillation when the value is too large.
P010 Second gain of speed loop
Range
Default
value
Unit
Usag
e
1
～
3000 40 Hz P,S

Refer to the description of the P005 parameter. It is necessary to set this parameter when
begins using the gain switching function
P011
Second integral time constant of
speed loop Range
Default
value
Unit
Usag
e
1.0 ～ 1000.0 20.0 ms P,S
 Refer to the description of the P006 parameter. It is necessary to set this parameter when
begins using the gain switching function.
P012
Second filter time constant of
torque Range
Default
value
Unit
Usag
e
0.10 ～ 50.00 2.50 ms ALL
 Refer to the description of the P007 parameter. It is necessary to set this parameter when
begins using the
gain switching function.
P013 Second gain of position loop
Range
Default
value
Unit
Usag
e
1
～
1000 40 1/s P
 Refer to the description of the P009 parameter. It is necessary to set this parameter when
begins using the gain switching function.
P017 Inertia ratio of load
Range
Default
value
Unit
Usag
e
0.0
～
200.0 1.0 times P,S

The load inertia ratio is that the inertia of mechanical load (refers to servomotor shaft)
divides by the rotor inertia of the servomotor.
P018
Control coefficient PDFF of speed
loop Range
Default
value
Unit
Usag
e
0 ～ 100 100 % P,S
 Using this PDFF coefficient of speed regulator can choose the structure of the speed
controller. “0” and “100” are the IP regulator. 1 to 99 is the PDFF regulator.

The smaller value of the parameter can get the higher stiffness (anti-deviation ability) of the
system. The medium value takes account to both frequency response and stiffness.
P019
Time constant of filter for speed
detection Range
Default
value
Unit
Usag
e
0.50 ～ 50.00 2.50 ms P,S
 The bigger value of parameter can get the smoother detected speed signal. The smaller
value of parameter can get the quicker responded signal, but it will cause noise if the value