CHAPTER 5: SETTINGS
CONTROL ELEMENTS
F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
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5
The figure shows a general form of a PID regulator in the s domain.
Figure 5-171: PID block diagram
where
y is the process signal
r is the setpoint signal
w is the tracking signal
u is the regulator output
K is the proportional gain
b is the setpoint weighting
T
d
is the derivative time constant
N is the derivative limit
PID 1 MAX:
10
Range: -10000 to 10000 in steps of 1
PID 1 MIN:
10
Range: -10000 to 10000 in steps of 1
PID 1 Tmin:
500 ms
Range: 100 to 1000 ms in steps of 1
PID 1 DEAD TIME:
1.00 sec
Range: 1 to 20 s in steps of 1
PID 1 BLK:
Off
Range: FlexLogic operand
PID 1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
PID 1
EVENTS: Disabled
Range: Enabled, Disabled
The F35 is provided with this optional feature, specified as an option at the time of ordering. Using the order
code for your device, see the order codes in chapter 2 for details.