Technical Specifications

ValVueFF Software Interface to FVP
116
GE Energy
Advanced Servo Tuning Parameters
The Advanced Servo Tuning Parameters frame provides two views for comparison, the
left half is the original one before changing the configuration, the right half is downloaded
to the positioner and implemented after selecting OK.
CAUTION Before performing Travel Calibration, check that the Tight
Shut Off, Full Open Feature and Position Limits are disabled.
If Travel Calibration is used to change zero and span more
than 10 percent then the Position limits defaults may be
incorrect. The position limits may need to be increased or
deceased.
Table 11 Advanced Servo Tuning Parameters
Parameter Description Init
Value
Range of
Values
Units
Boost On Threshold 1 This position control parameter
reduces the effect of deadband in
control relay.
1.9 0 (disables);
0.1 to 10
%
Boost On Threshold 2 This position control parameter
reduces the effect of deadband in
control relay.
2.9 0 (disables);
0.1 to 10.
(1)>= (2)
%
Boost Off Threshold 1 This position control parameter
reduces the effect of deadband in
control relay.
1 0 (disables);
0.1 to 10.
%
Boost Off Threshold 2 This position control parameter
reduces the effect of deadband in
control relay.
1 0 (disables);
0.1 to 10.
%
Boost Value 1 This position control parameter
reduces the effect of deadband in
control relay.
8 0 to 50 %
Boost Value 2 This position control parameter
reduces the effect of deadband in
control relay.
10 0 to 50 %
Servo I Sleep Lmt This position control parameter
prevents unnecessary overshoot for
large step inputs.
0 0 to 10 Seconds
Servo P Alpha This position control parameter adjusts
the gain under very large hysteresis
conditions.
0 (Off) 0 to 100 %