FujiFilm ALPHA 5 RYT-SX, User Manual

Page: 221 / 547

CHAPTER 4 PARAMETER
Control Gain and Filter Setting Parameters
4-25
4
PA1_58 Feed forward gain 1
No. Name Setting range
Default
value
Change
58 Feed forward gain 1 0.000 to 1.500 0.000 Always
A larger setting decreases the position deviation amount, improving the response characteristics.
Set at 1.000 to reduce the position deviation at a constant speed to almost zero (except during
acceleration or deceleration).
Use this parameter to increase the synchronization accuracy between two axes of synchronous control
or similar.
For regular point-to-point operation, set the parameter at 0.500 or less (approximate value).
PA1_59 Torque filter time constant for position and speed control
PA1_60 Torque filter time constant for torque control
No. Name Setting range
Default
value
Change
59
Torque filter time constant
for position and speed
control
0.00 [ms] to 20.00 [ms] *** Always
60
Torque filter time constant
for torque control
0.00 [ms] to 20.00 [ms] 0.00 Always
PA1_60 Torque filter time constant for torque control is enabled only for VS type.
Torque filter
time constant
for position and
speed control
This parameter is enabled under speed and position control.
Add a filter to internal torque commands.
The response of the servo system is improved and resonance is suppressed. In
particular, the reference value should be larger with large load inertia.
Automatic adjustment is made inside the amplifier in other than the manual tuning
mode.
Set PA1_94 at 0 to allow manual settings.
Torque filter
time constant
for torque
control
(VS type only) The parameter is enabled under torque control. Add a filter to external torque
commands. Good effects can be expected for a system prone to electric noise or
one with fluctuation in the command voltage.