Page 275 - Bürkert
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Signal flow plan
Position control loop
Z1
Valve
B1
opening
8792 Positioner SideControl Set-point - Position controller POS Control system Proportional
P
CMD
Xd1
K
+
E1
valve
position value
Position measuring system
Position control loop
Schematic diagram of SideControl Type 8792
Without Fieldbus interface
Analogue
Input for feedback 2)
Setpoint position value 4-20mA, 0-20mA,
4 - 20mA, 0-20 mA Input Output
0-10 V, 0-5 V 0-10 V, 0-5 V
Positioner
2 binary outputs
Binary input 24 V PNP 2)
Supply 24 V PNP NO 2)
24 V DC 1) Initiator 1/Initiator 2
Operation
With Profibus DP / DeviceNet
Bus Bus
Positioner 2 Binary output
PROFIBUS-DP/ 24 V PNP 2)
Input DeviceNet Output
Initiator 1 / Initiator 2
Binary input 24 V PNP NO 2)
Supply unit
24 V DC 1)
Operation
1) The operating voltage is supplied with a 3-wire unit independent from the setpoint signal
2) Alternative options
Note: For assembly options please see Type 8791
274