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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















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