Spec_PUMP_Pt1 by linzhengnd

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									                         QXI3N_PUMP
                                   (PLC13 – Pt1)

                                               =>


                       Description of the
                   Control logic and interlocks


       This document is meant to be a dedicated guide to help preparing the details for all objects.
When appropriate, it should be completed with boolean logic as specified.




                                    Version 2.2
                                    14 June 2006

Last modifications:
    Stepper PUMP: S1101 to S1102 (V2.10)
    P3421 Variator stepper : Step_0 to Step_1 (V2.10)
    Speed Set point = 5541 tr/mn replaced by 5800 tr/mn (VBN2, VBN3, VBN4)
                                                                            Spec_Pump

Pump


1.1 Controlled objects
   This object controls:
    VBN2
    VBN3
    VBN4


1.2 Options:


1.3 Interlock logic

1.3.1 Full stop:
    [PUMP_stepper]S1105                                                    FS1



1.3.2 Temporary stop:
    No temporary stop


1.3.3 Start Interlock:

   NOT (HV3455a OPEN) OR NOT (HV3455c CLOSED) OR NOT (HV3455e OPEN)              SI1

The 3 Hand Valves have no end-switches. Their states are memorized with ON/OFF objects.


1.4 Configuration Logic

1.4.1 Feedback ON:

        [(QXI3N_A_VBN2 On status) or (QXI3N_A_VBN3 On status) or (QXI3N_A_VBN4
         On Status)] & Pump_RunOrderStatus

1.4.2 Feedback OFF:

        [Pump_stepper]S1105 Or NOT(Pump_RunOrderStatus)

1.4.3 Control stop Ended

   




                                       Page   2
                                                                                 Spec_Pump

1.5 Logic description and dependant logic description:


1.5.1 Global object logic


                                                               VBN2 Off
Pump_stepper                                 1100              VBN3 Off
                                                               VBN4 Off
                                                               Basc = 0
                     Pump_RunOSt

                                                               VBN2 On
                                             1101              VBN3 Off
           (VBN2_step_1168_1169_ok                             VBN4 Off
           Or P3421VarDef_PosSt) AND
           NOT[VBN2_Step]S1106                                 VBN2 Off
                                             1102              VBN3 On
                                                               VBN4 Off
           VBN3_step_1178_1179_ok
           + P3431VarDef_PosSt
                                                               VBN2 Off
                                             1103              VBN3 Off
                                                               VBN4 On
           VBN4_step_1148_1149_ok
           + P3441VarDef_PosSt
                                             1104          Basc = Basc+1



                              Basc ≥ 3                             Basc < 3

                              Basc+1         1105          PUMP_FullStop
                                                                 Basc+1

                                         1

                                        B
                                        as
                                        c
                                        +
For all the steps: IF PUMP_RunOSt = 0 THEN GOTO 1100
                                        1

1.5.2 Dependant object logic


     VBN2
              IF [Pump_stepper]S1101          THEN         VBN2_AutoOnRequest
              ELSE                                         VBN2_AutoOffRequest

      VBN3
              IF [Pump_stepper]S1102          THEN         VBN3_AutoOnRequest
              ELSE                                         VBN3_AutoOffRequest

      VBN4
              IF [Pump_stepper]S1103          THEN         VBN4_AutoOnRequest


                                                Page   3
                                                                Spec_Pump

           ELSE                           VBN4_AutoOffRequest



1.6 Field Objects Interlocks
  




                               Page   4
                                                                  Spec_Pump




                           QXI3N_VBN2

                                        =>


2 VBN2-Circulation

2.1 Controlled objects
   This object controls:
    PV3420
    PV3422
    PV3423
    P3421 (through an ACS 140 frequency variator)
    Drive control Registers (PROFIBUS)
      1. P3421_Com              ACS 140 command Word
      2. P3421SPDSP             ACS 140 Ref 1
      3. P3421Status            ACS 140 Status Word
      4. P3421CTLSpd            ACS 140 Actual output frequency
      5. P3421Current           ACS 140 Actual output current




2.2 Options:


2.3 Interlock logic

2.3.1 Full stop: Al N°17
    NOT(24VAI7) or NOT(24VDI3) or NOT(24VDI4) or NOT(24VDO2)


2.3.2 Temporary stop:

   NOT (SEPH_D On status)
   P3421VarDef



                                       Page   5
                                                                      Spec_Pump




2.3.3 Start Interlock:

     NOT GL3420           (PV3420 –TLN3 line- is not closed)          SI1
     NOT GH3420h          (HV3420 is not open)                        SI2
     NOT GL3421h          (HV3421 – OUT line - is not closed)         SI3
     NOT GH3422h          (HV3422 is not open)                        SI4
     NOT GL3423           (PV3423 – TLN4 line- is not closed)         SI5
     NOT GH3422           (PV3422 – Vent line- is not open)           SI6


2.4 Configuration Logic

2.4.1 Feedback ON:

       [VBN2_stepper]S1164 AND (VBN2 Run Order Status) used in AlaOb6 and AlaOb7

2.4.2 Feedback OFF:

       NOT ([VBN2_stepper]S1164)

2.4.3 Control stop Ended

    [VBN2_stepper]S1160


2.5 Logic description and dependant logic description:




                                         Page   6
                                                                                    Spec_Pump




2.5.1 Global object logic                                  Close PV3420
                                                           Close PV3423
                                                           Open PV3422
VBN2_stepper                              1160             P3421 = OFF
                                                           P3421SPDSP=0
                    VBN2_RunOSt
                    AND Tempo = 3s
                                           1106            Open PV3423

                    ↑ VBN6_Step_1190
                                                           Open PV3420
                                                           Close PV3423
                                          1161             P3421 = ON
             TT3422 < TT3422_THR1
                                                           P3421SPDSP = 2000tr/mn
             Tempo = 3s

                                          1162             Open PV3423
             Tempo = 5s

                                                           Close PV3422
                                          1163
      P3421CTLSpd ≥ P3421SPDSP                             P3421SPDSP = 5800tr/mn
      AND Tempo = 60 s

                                          1164             C=0

      DPT3421 < DPT3421_TH1 (500 mbar)

                                                           Open PV3422 (purge)
                                          1165             C=C+1
                             Tempo = 5s

                                          1166             Close PV3423
      DPT3421 > - 800 mbar
      + Tempo = 600 s
                                                           Open PV3423
                                          1167
             Tempo = 5s


                                          1168             Close PV3422


      DPT3421 < DPT3421_TH1 (500 mbar)
      AND C=3
      AND Tempo = 60 s                 1169

                                          1160

                                    DPT3421 < DPT3421_TH1 (500 mbar)
                                    AND C<3
                                    AND Tempo = 60 s                 1165

                                                        DPT3421 ≥ DPT3421_TH1 (500 mbar)
                                                        AND Tempo = 60 s
                                                                                           1164

                 For all the steps: IF VBN2_RunOSt = 0 THEN GOTO 1160


                                             Page   7
                                                                                 Spec_Pump




                                P3421 Variator stepper (Profibus)

                        This stepper is not visible from the OWS equipment.


                                                     P3421_Com = 0 (OFF)
                                    Step_0           P3421VarDef_HFPos=0



      [VBN2_Step]S1161
      AND Tempo = 3s                                P3421_Com = 6
                                  Step_1


      P3421Status.bit0 = 1                                                        Tempo=30s
      (Ready to switch ON)
                                                    P3421_Com = 7
                                   Step_2

      P3421Status.bit1= 1                                                       Tempo=30s
      (Ready to operate)                            P3421_Com = 15
                                  Step_3


      P3421Status.bit2= 1                                                     Tempo=30s
      (Operation enabled)                           P3421_Com = 63
                                   Step_4           (Accelerator enabled)


      Tempo = 10s
                                                    P3421_Com = 127
                                   Step_5

      P3421Status.bit8= 1                                                   Tempo=30s
      (Operating)
                                  Step_6

      P3421Status.bit0= 0   +
                 bit1= 0    +
                  bit2= 0   +
                                   Step_7           P3421VarDef_HFPos=1
                  bit3= 1   +
                  bit7= 1




For all the steps: IF VBN2_RunOSt = 0 THEN Go to the initial step




                                             Page   8
                                                                                   Spec_Pump




2.5.2    Dependant object logic
        When the regulation comes under operation the valves must move slowly (5%/mn) to prevent
        high mass flow variations.

        PV3420         (TLN3 input line)
                 IF [VBN2_stepper]S1160    THEN         PV3420_AutoOffRequest
                                                        (close the TLN3-input line)
                 IF [VBN2_stepper]S1161 THEN            PV3420_AutoOnRequest
                                                        (Open the line)

        PV3422      (Vent line)
              IF [VBN2_stepper]S1160       THEN         PV3422_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN2_stepper]S1161 THEN            PV3422_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN2_stepper]S1163 THEN            PV3422_AutoOffRequest
                                                        (close the vent line)
                 IF [VBN2_stepper]S1165 THEN            PV3422_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN2_stepper]S1168 THEN            PV3422_AutoOffRequest
                                                        (close the vent line)

IF (P3421_OffSt) AND (PT3420>S1 OR PT3421>S1) THEN PV3422_AutoOnRequest
IF (P3421_OffSt) AND (PT3420<S2 AND PT3421<S2) THEN PV3422_AutoOffRequest

        S1 = 10 bar
        S2 = 8 bar

        PV3423:    (TLN4 output line)
             IF [VBN2_stepper]S1160 THEN                PV3423_AutoOffRequest
                                                        (close the TLN4 line)
                 IF [VBN2_stepper]S1106    THEN         PV3423_AutoOnRequest
                                                        (open the TLN4 line)
                 IF [VBN2_stepper]S1161    THEN         PV3423_AutoOffRequest
                                                        (close the TLN4 line)
                 IF [VBN2_stepper]S1162    THEN         PV3423_AutoOnRequest
                                                        (open the TLN4 line)
                 IF [VBN2_stepper]S1166    THEN         PV3423_AutoOffRequest
                                                        (close the TLN4 line)
                 IF [VBN2_stepper]S1167    THEN         PV3423_AutoOnRequest
                                                        (open the TLN4 line)

        P3421 (Pump Variator)

                 ON/OFF
                 IF [VBN2_stepper]S1160    THEN         P3421_AuOffR = 1


                                            Page   9
                                                                        Spec_Pump

           IF [VBN2_stepper]S1161   THEN        P3421_AuOnR = 1

           Command Word (Profibus)
           IF [VBN2_stepper] Step_0 THEN        P3421Com_AuPosR = 0
           IF [VBN2_stepper] Step_1 THEN        P3421Com_AuPosR = 6
           IF [VBN2_stepper] Step_2 THEN        P3421Com_AuPosR = 7
           IF [VBN2_stepper] Step_3 THEN        P3421Com_AuPosR = 15
           IF [VBN2_stepper] Step_4 THEN        P3421Com_AuPosR = 63
           IF [VBN2_stepper] Step_5 THEN        P3421Com_AuPosR = 127

           Reference Value (speed Set Point – Profibus)
           IF [VBN2_stepper] S1160 THEN            P3421SPDSP_AuPosR = 0
           IF [VBN2_stepper] S1161 THEN            P3421SPDSP_AuPosR = 2000 tr/mn
           IF [VBN2_stepper] S1163 THEN            P3421SPDSP_AuPosR = 5800 tr/mn

           Variator Status (Profibus)
           P3421VarOn_HFPos = P3421Status_PosSt.bit8
           P3421VarOff_HFPos = NOT(P3421Status_PosSt.bit8)

           Variator Fault
           IF [VBN2_stepper] Step_0 THEN        P3421VarDef_HFPos = 0
           IF [VBN2_stepper] Step_7 THEN        P3421VarDef_HFPos = 1


2.6 Field Objects Interlocks
  




                                    Page   10
                                                                  Spec_Pump




                           QXI3N_VBN3

                                        =>


3 VBN3-Circulation

3.1 Controlled objects
   This object controls:
    PV3430
    PV3432
    PV3433
    P3431 (through an ACS 140 frequency variator)
    Drive control Registers (PROFIBUS)
      1. P3431_Com              ACS 140 command Word
      2. P3431SPDSP             ACS 140 Ref 1
      3. P3431Status            ACS 140 Status Word
      4. P3431CTLSpd            ACS 140 Actual output frequency
      5. P3431Current           ACS 140 Actual output current




3.2 Options:


3.3 Interlock logic

3.3.1 Full stop: Al N°18
    NOT(24VAI8) or NOT(24VDI4) or NOT(24VDO3)


3.3.2 Temporary stop:
    NOT(SEPH_D On Status)
    P3431VarDef




                                      Page   11
                                                                      Spec_Pump




3.3.3 Start Interlock:

     NOT GL3430           (PV3430 –TLN3 line- is not closed)          SI1
     NOT GH3430h          (HV3430 is not open)                        SI2
     NOT GL3431h          (HV3431 – OUT line - is not closed)         SI3
     NOT GH3432h          (HV3432 is not open)                        SI4
     NOT GL3433           (PV3433 – TLN4 line- is not closed)         SI5
     NOT GH3432           (PV3432 – Vent line- is not open)           SI6


3.4 Configuration Logic

3.4.1 Feedback ON:

       [VBN3_stepper]S1174 AND (VBN3 Run Order Status) used in AlaOb6 and AlaOb7

3.4.2 Feedback OFF:

       NOT([VBN3_stepper]S1174)

3.4.3 Control stop Ended

    [VBN3_stepper]S1170


3.5 Logic description and dependant logic description:




                                        Page   12
                                                                                   Spec_Pump




3.5.1 Global object logic

VBN3_stepper
                                                             Close PV3430
                                                             Close PV3433
                                                             Open PV3432
                                          1170               P3431 = OFF
            VBN3_RunOSt
                                                             P3431SPDSP=0
            AND Tempo = 3s


            TT3432 < TT3432_THR1                             Open PV3430
            Tempo = 3s                    1171               P3431 = ON
                                                             P3431SPDSP = 2000tr/mn


                                          1172               Open PV3433
            Tempo = 5s

                                                             Close PV3432
      P3431_CTLSpd ≥ P3431_SPDSP          1173               P3431SPDSP = 5800tr/mn
      AND Tempo = 60 s


      DPT3431 < DPT3431_TH1 (500 mbar)    1174               C=0



                                                             Open PV3432 (purge)
                                          1175               C=C+1
            Tempo = 5s


                                                             Close PV3433
                                          1176
            DPT3431 > - 800 mbar
            + Tempo = 600 s
                                                             Open PV3433
                                          1177
            Tempo = 5s

                                          1178               Close PV3432

      DPT3431 < DPT3431_TH1 (500 mbar)
      AND C=3
      AND Tempo = 600 s
                                          1179

                                          1170
                                   DPT3431 < DPT3431_TH1 (500 mbar)
                                   AND C<3
                                   AND Tempo = 60 s                   1175
                                                              DPT3431 ≥ DPT3431_TH1 (500 mbar)
                                                              AND Tempo = 60 s
                                                                                         1174



                                           Page   13
                                                                                       Spec_Pump

                For all the steps: IF VBN3_RunOSt = 0 THEN GOTO 1170


                                   P3431 Variator stepper (Profibus).

                           This stepper is not visible from the OWS equipment.

                                                        P3431_Com = 0 (OFF)
                                     Step_0             P3431VarDef_HFPos=0

  VBN3_RunOSt
  AND Tempo = 3s

                                       Step_1          P3431_Com = 6


  P3431Status.bit0 = 1                                                              Tempo = 30s
 (Ready to switch ON)                                  P3431_Com = 7
                                       Step_2


P3431Status.bit1 = 1                                                              Tempo = 30s
(Ready to operate)                   Step_3            P3431_Com = 15



P3431Status.bit2 = 1                                                              Tempo = 30s
(Operation enabled)                                    P3431_Com = 63
                                       Step_4          (Accelerator enabled)


Tempo = 10s
                                                       P3431_Com = 127
                                       Step_5


P3431Status.bit8 = 1                                                             Tempo = 30s
(Operating)
                                       Step_6

P3431Status.bit0= 0    +
           bit1= 0     +
            bit2= 0    +
            bit3= 1    +               Step_7          P3431VarDef_HFPos=1
            bit7= 1




For all the steps: IF VBN3_RunOSt = 0 THEN GOTO Step_0




                                                Page   14
                                                                                      Spec_Pump




3.5.2    Dependant object logic
        When the regulation comes under operation the valves must move slowly (5%/mn) to prevent
        high mass flow variations.

        PV3430         (TLN3 input line)
                 IF [VBN3_stepper]S1170    THEN          PV3430_AutoOffRequest
                                                              (close the TLN3-input line)
                 IF [VBN3_stepper]S1171 THEN             PV3430_AutoOnRequest
                                                              (Open the line)

        PV3432      (Vent line)
              IF [VBN3_stepper]S1170       THEN          PV3432_AutoOnRequest
                                                              (open the vent line)
                 IF [VBN3_stepper]S1171 THEN             PV3432_AutoOnRequest
                                                              (open the vent line)
                 IF [VBN3_stepper]S1173 THEN             PV3432_AutoOffRequest
                                                              (close the vent line)
                 IF [VBN3_stepper]S1175 THEN             PV3432_AutoOnRequest
                                                              (open the vent line)
                 IF [VBN3_stepper]S1178 THEN             PV3432_AutoOffRequest
                                                              (close the vent line)

IF (P3431_OffSt) AND (PT3430>S1 OR PT3431>S1) THEN PV3432_AutoOnRequest
IF (P3431_OffSt) AND (PT3430<S2 AND PT3431<S2) THEN PV3432_AutoOffRequest

        S1 = 10 bar
        S2 = 8 bar


        PV3433:    (TLN4 output line)
             IF [VBN3_stepper]S1170 THEN                 PV3433_AutoOffRequest
                                                         (close the TLN4 line)
                 IF [VBN3_stepper]S1172    THEN          PV3433_AutoOnRequest
                                                         (open the TLN4 line)
                 IF [VBN3_stepper]S1176    THEN          PV3433_AutoOffRequest
                                                         (close the TLN4 line)
                 IF [VBN3_stepper]S1177    THEN          PV3433_AutoOnRequest
                                                         (open the TLN4 line)


        P3431 (Pump Variator)

          ON/OFF
          IF [ VBN3_stepper]S1170      THEN            P3431_AuOffR = 1
          IF [ VBN3_stepper]S1171      THEN            P3431_AuOnR = 1


                                           Page   15
                                                                         Spec_Pump




      Command Word (Profibus)
          IF [VBN3_stepper] Step_0    THEN            P3431Com_AuPosR = 0
          IF [VBN3_stepper] Step_1   THEN             P3431Com_AuPosR = 6
          IF [VBN3_stepper] Step_2   THEN             P3431Com_AuPosR = 7
          IF [VBN3_stepper] Step_3   THEN             P3431Com_AuPosR = 15
          IF [VBN3_stepper] Step_4   THEN             P3431Com_AuPosR = 63
          IF [VBN3_stepper] Step_5   THEN             P3431Com_AuPosR = 127

           Reference Value (speed Set Point – Profibus)
           IF [VBN3_stepper] S1170 THEN            P3431SPDSP_AuPosR = 0
           IF [VBN3_stepper] S1171 THEN            P3431SPDSP_AuPosR = 2000 tr/mn
           IF [VBN3_stepper] S1173 THEN            P3431SPDSP_AuPosR = 5800 tr/mn

           Variator Status (Profibus)
           P3431VarOn_HFPos = P3431Status_PosSt.bit8
           P3431VarOff_HFPos = NOT(P3431Status_PosSt.bit8)

           Variator Fault
           IF [VBN3_stepper] Step_0 THEN         P3431VarDef_HFPos = 0
           IF [VBN3_stepper] Step_7 THEN         P3431VarDef_HFPos = 1


3.6 Field Objects Interlocks
  




                                     Page   16
                                                                  Spec_Pump




                           QXI3N_VBN4
                                           =>

4 VBN4-Circulation

4.1 Controlled objects
   This object controls:
    PV3440
    PV3442
    PV3443
    P3441 (through an ACS 140 frequency variator)
    Drive control Registers (PROFIBUS)
      6. P3441_Com              ACS 140 command Word
      7. P3441SPDSP             ACS 140 Ref 1
      8. P3441Status            ACS 140 Status Word
      9. P3441CTLSpd            ACS 140 Actual output frequency
      10. P3441Current          ACS 140 Actual output current



4.2 Options:

4.3 Interlock logic

4.3.1 Full stop: Al N°19
    NOT(24VAI8) or NOT(24VDI5) or NOT(24VDO4)


4.3.2 Temporary stop:

    NOT (SEPH_D On status P3441VarDef)


4.3.3 Start Interlock:

     NOT GL3440         (PV3440 –TLN3 line- is not closed)       SI1
     NOT GH3440h        (HV3440 is not open)                     SI2
     NOT GL3441h        (HV3441 – OUT line - is not closed)      SI3
     NOT GH3442h        (HV3442 is not open)                     SI4
     NOT GL3443         (PV3443 – TLN4 line- is not closed)      SI5
     NOT GH3442         (PV3442 – Vent line- is not open)        SI6


                                       Page   17
                                                                     Spec_Pump



4.4 Configuration Logic

4.4.1 Feedback ON:

      [VBN4_stepper]S1144 AND (VBN4 Run Order Status) used in AlaOb6 and AlaOb7

4.4.2 Feedback OFF:

      NOT ([VBN4_stepper]S1144)

4.4.3 Control stop Ended

   [VBN4_stepper]S1140


4.5 Logic description and dependant logic description:




                                   Page   18
                                                                                    Spec_Pump




4.5.1 Global object logic
                                                           Close PV3440
                                                           Close PV3443
VBN4_stepper                                               Open PV3442
                                         1140              P3441 = OFF
                                                           P3441SPDSP=0

             VBN4_RunOSt
             AND Tempo = 3s                                Open PV3440
                                         1141              P3441 = ON
                                                           P3441SPDSP = 2000tr/mn
             TT3442 < TT3442_THR1
             Tempo = 3s
                                         1142              Open PV3443

             Tempo = 5s                                    Close PV3442
                                         1143              P3441SPDSP = 5800tr/mn

      P3441CTLSpd ≥ P3441SPDSP
      AND Tempo = 60 s
                                         1144              C=0

      DPT3441 < DPT3441_TH1 (500 mbar)

                                                           Open PV3442 (purge)
                                         1145              C=C+1
             Tempo = 5s

                                                           Close PV3443
                                         1146

      DPT3441 > - 800 mbar
      + Tempo = 600 s
                                                           Open PV3443
                                         1147
             Tempo = 5s


                                         1148              Close PV3442


      DPT3441 < DPT3441_TH1 (500 mbar)
      AND C=3
      AND Tempo = 60 s                 1149

                                         1140

                                    DPT3441 < DPT3441_TH1 (500 mbar)
                                    AND C<3
                                    AND Tempo = 60 s                 1145

                                                        DPT3441 ≥ DPT3441_TH1 (500 mbar)
                                                        AND Tempo = 60 s
                                                                                           1144

                 For all the steps: IF VBN4_RunOSt = 0 THEN GOTO 1140


                                           Page   19
                                                                                 Spec_Pump




                                P3441 Variator stepper (Profibus)

                                This stepper is not visible from the OWS equipment.


                                                     P3441_Com = 0 (OFF)
                                    Step_0           P3441VarDef_HFPos=0



      VBN4_RunOSt
      AND Tempo = 3s                                P3441_Com = 6
                                   Step_1


      P3441Status.bit0 = 1                                                        Tempo=30s
      (Ready to switch ON)
                                                    P3441_Com = 7
                                   Step_2

      P3441Status.bit1= 1                                                       Tempo=30s
      (Ready to operate)                            P3441_Com = 15
                                   Step_3


      P3441Status.bit2= 1                                                     Tempo=30s
      (Operation enabled)                           P3441_Com = 63
                                   Step_4           (Accelerator enabled)


      Tempo = 10s
                                                    P3441_Com = 127
                                   Step_5

      P3441Status.bit8= 1                                                   Tempo=30s
      (Operating)
                                   Step_6

      P3441Status.bit0= 0   +
                 bit1= 0    +
                  bit2= 0   +
                                   Step_7           P3441VarDef_HFPos=1
                  bit3= 1   +
                  bit7= 1




For all the steps: IF VBN4_RunOSt = 0 THEN GOTO Step_0




                                             Page   20
                                                                                   Spec_Pump




4.5.2    Dependant object logic
        When the regulation comes under operation the valves must move slowly (5%/mn) to prevent
        high mass flow variations.

        PV3440         (TLN3 input line)
                 IF [VBN4_stepper]S1140    THEN         PV3440_AutoOffRequest
                                                        (close the TLN3-input line)
                 IF [VBN4_stepper]S1141 THEN            PV3440_AutoOnRequest
                                                        (Open the line)

        PV3442      (Vent line)
              IF [VBN4_stepper]S1140       THEN         PV3442_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN4_stepper]S1141 THEN            PV3442_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN4_stepper]S1143 THEN            PV3442_AutoOffRequest
                                                        (close the vent line)
                 IF [VBN4_stepper]S1145 THEN            PV3442_AutoOnRequest
                                                        (open the vent line)
                 IF [VBN4_stepper]S1148 THEN            PV3442_AutoOffRequest
                                                        (close the vent line)

IF (P3441_OffSt) AND (PT3440>S1 OR PT3441>S1) THEN PV3442_AutoOnRequest
IF (P3441_OffSt) AND (PT3440<S2 AND PT3441<S2) THEN PV3442_AutoOffRequest

        S1 = 10 bar
        S2 = 8 bar


        PV3443:    (TLN4 output line)
             IF [VBN4_stepper]S1140 THEN                PV3443_AutoOffRequest
                                                        (close the TLN4 line)
                 IF [VBN4_stepper]S1142    THEN         PV3443_AutoOnRequest
                                                        (open the TLN4 line)
                 IF [VBN4_stepper]S1146    THEN         PV3443_AutoOffRequest
                                                        (close the TLN4 line)
                 IF [VBN4_stepper]S1147    THEN         PV3443_AutoOnRequest
                                                        (open the TLN4 line)


        P3441 (Pump Variator)

                 ON/OFF
                 IF [VBN4_stepper]S1140    THEN         P3441_AuOffR = 1
                 IF [VBN4_stepper]S1141    THEN         P3441_AuOnR = 1



                                           Page   21
                                                                        Spec_Pump

           Command Word (Profibus)
           IF [VBN4_stepper] Step_0 THEN        P3441Com_AuPosR = 0
           IF [VBN4_stepper] Step_1 THEN        P3441Com_AuPosR = 6
           IF [VBN4_stepper] Step_2 THEN        P3441Com_AuPosR = 7
           IF [VBN4_stepper] Step_3 THEN        P3441Com_AuPosR = 15
           IF [VBN4_stepper] Step_4 THEN        P3441Com_AuPosR = 63
           IF [VBN4_stepper] Step_5 THEN        P3441Com_AuPosR = 127

           Reference Value (speed Set Point – Profibus)
           IF [VBN4_stepper]S1140 THEN             P3441SPDSP_AuPosR = 0
           IF [VBN4_stepper]S1141 THEN             P3441SPDSP_AuPosR = 2000 tr/mn
           IF [VBN4_stepper]S1143 THEN             P3441SPDSP_AuPosR = 5800 tr/mn

           Variator Status (Profibus)
           P3441VarOn_HFPos = P3441Status_PosSt.bit8
           P3441VarOff_HFPos = NOT(P3441Status_PosSt.bit8)

           Variator Fault
           IF [VBN4_stepper] Step_0 THEN        P3441VarDef_HFPos = 0
           IF [VBN4_stepper] Step_7 THEN        P3441VarDef_HFPos = 1


4.6 Field Objects Interlocks
  




                                    Page   22

								
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