Series 65 INSTALLATION
963283EA Edition 2019-05-03 85/
RAMP MODE
Mode = 0
Cocnstant Time
The RAMP TIME is dependent on the adjusted parameter ramp time and is always the
same independent of the control deviation. That means the ramp time from the actual
value to the setpoint value is the adjusted parameter ramp time value.
Mode = 1
Constant Slope
The RAMP TIME is dependent on the adjusted parameter ramp time and is different
depending on the control deviation. The RAMP TIME is calculated corresponding to the
sensor full scale value (10V). Ramp time = 10 sec.; ramp time slope is SFS (10V) in 10
Seconds.
In the adaptive pressure controller mode, the RAMP TIME parameter also can be a value to minimize
over- / undershooting. The ramp could be used to harmonize the adaptive control algorithm.
GAIN FACTOR
The GAIN FACOTR is a control parameter to adapt the performance of the pressure control algorithm. A higher gain
results in faster response, higher over- / undershoot of pressure. A lower gain results in slower response, lower over- /
undershoot of pressure.
Example:
Set SENSOR DELAY of the adaptive pressure controller to the value 0.75
Command Pressure
controller
Parameter selection variable Parameter value (seconds)
s:02
A (a) 00 (bb) 0.75 (c)
s:02A000.75
To optimize adaptive control algorithm, refer to chapter «Tuning of control performance».
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