Swann AMI Deltacon Power Operator's Manual page 65

Monitoring system
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AMI Deltacon Power
Program List and Explanations
5.2.1.40.13
5.2.1.40.23
5.2.1.40.14
5.2.1.40.24
5.2.1.40.16
5.2.1.40.26
5.2.1.40.17
5.2.1.40.27
5.2.1.40.18
5.2.1.40.28
5.2.1.40.19
5.2.1.40.29
As control
output
A-96.250.451 / 190121
Parameter Temp. 1
Range low: - 25 to +270 °C
Range high: -25 to + 270 °C
Parameter Temp. 2
Range low: - 25 to +270 °C
Range high: -25 to + 270 °C
Parameter Difference
Range low: 0.000 – 3000 S
Range high: 0.000 –3000 S
Parameter Sample flow
Range low: 0.0 –20 l/h
Range high: 0.0 – 20 l/h
Parameter pH
Range low: 0.00 –14 pH
Range high: 0.00 –14 pH
Parameter Ammonia
Range low: 0.00 –500 ppm
Range high: 00.0 –500 ppm
Signal outputs can be used for driving control units. We distinguish
different kinds of controls:
 P-controller: The controller action is proportional to the devia-
tion from the setpoint. The controller is characterized by the P-
Band. In the steady-state, the setpoint will never be reached.
The deviation is called steady-state error.
Parameters: setpoint, P-Band
 PI-controller: The combination of a P-controller with an
I-controller will minimize the steady-state error. If the reset time
is set to zero, the I-controller is switched off.
Parameters: setpoint, P-Band, reset time.
 PD-controller: The combination of a P-controller with a
D-controller will minimize the response time to a fast change of
the process value. If the derivative time is set to zero, the D-
controller is switched off.
Parameters: setpoint, P-Band, derivative time.
 PID-controller: The combination of a P-, an I - and a D-control-
ler allows a proper control of the process.
Parameters: setpoint, P-Band, reset time, derivative time.
65

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