nVent RAYCHEM 1244-0006829, Руководство по эксплуатации и установке

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Parameters Symbol
Value
range Description
Proportional
band
Pb1
0…9999 Proportional band
At Pb1,2 = 0, the controller structure
is ineffective. For the continuous
controller Pb1,2 must be > 0.
Pb2
1)
0…9999
Derivative
time
dt
0…
9999s
Influences the differential component
of the controller output signal
The larger the derivative time
the higher the effectiveness of
the D component.
Reset time
rt
0…
9999s
Influences the integral component of
the controller output signal
The larger the reset time the lower the
effectiveness of the I component.
1) For 3-state controllers only (controller output 2)
Cycle time
of output
Cy1
0…
20…
9999s
For a switching output, the cycle time
should be selected such that on one
hand no inadmissible process values
fluctuations are generated and on
the other hand no overload of the
actuators occurs by the cyclic supply
of energy.
Cy2
1)
0…
20…
9999s
Dead band
db
0.0…
999.9
Spacing between the two control
contacts of the 3-state controller and
the modulating controller
Hysteresis
HyS1
0.0…
1.0…
999.9
Hysteresis for switching controller
with Pb1,2 = 0.
100%
y
x w
HyS1, 2
0%
HyS2
1)
0.0…
1.0…
999.9
Valve
run time
tt
5… 60…
3000s
Used run time range of the control
valve (actuator) of the modulating
controller
Operating
value
y0
-100…
0…
+100%
Output value for P and PD controllers
(for x = w is y = Y0)
Output
value limits
y1
0… 100% Maximum output value limit
Minimum output value limit
(Only effective when Pb>0!)
y2
-100…
+100%
1) For 3-state controllers only (controller output 2)