SIPART DR20
Project Planning Manual
•
Configuring
All controllers are delivered with the defined factory settings and must be configured; during
commissioning. The examples show the switch positions required for the respective application,
but only that configuring switches are listed, which differ from the factory setting.
Ratio control with ratio station K and a slave controller, controlled variable and
command variable from four-wire transmitters
Ratio controller, process variable and command variable from four-wire
transmitters
Further additional settings may be necessary because of plant-specific criteria. The following
planning examples always have parallel connection circuits. Therefore the configuring switches
which refer to the serial interface are not listed.
•
Parameterization
Please refer to the notes on page 92.
•
Control algorithm
All planning examples (except Z1) are shown for PI or PID response. Switchover to P or PD
response is possible using configuring switch S28 (= 1). If this is necessary. it is essential to
connect an electronic position transmitter (EPT) via yR in the case of a SIPART DR20 with S
output and to set configuring switch S2 = 3.
List of planning examples
Page
K1
Fixed setpoint controller,
controlled variable from four-wire transmitter
112
K2
Fixed setpoint controller,
controlled variable from two-wire transmitter
113
K3
Fixed setpoint controller, controlled variable direct from Pt 100 resistance
thermometer in three-wire circuit
115
K4
Fixed setpoint controller, controlled variable direct from Pt 100 resistance
thermometer in four-wire circuit
115
K5
Fixed setpoint controller, controlled variable direct from Pt 100 resistance
thermometer in two-wire circuit
116
K6
Fixed setpoint controller, controlled variable direct from thermocouple, with
internal cold junction
117
K7
Fixed setpoint controller, controlled variable direct from thermocouple, with
external cold junction
118
K8
Controller with setpoint defined remotely by potentiometer,
controlled variable from thermocouple
119
K9
118
K10
Cascade control, controlled variables from four-wire transmitters
122
K11
124
109
Содержание SIPART DR20
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