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Design and Functional Principle Positioning pressure Connection Y1 Closed Actuator type Open Safety position after power failure electrical pneumatic Closed Closed In rotary actuators the direction of rotation counterclockwise looking onto the actuating shaft of the valve is usually defined as ”Open”. Y1 Open Open Closed Open Y2 Y1 Open Closed Open Y1 Closed Open Last position (before power failure) Y2 Closed Closed Open Y1 up down Down Down Y1 up down Up Up Y2 Y1 up down Up Y1 Last position (before power failure) up down Y2 up down Down Figure 2-5 Pneumatic connection positioning 20 SIPART PS2 Manual A5E00074631-03
Design and Functional Principle 2.2.4 Mounting Kit The positioner can be mounted on almost all actuators with the appropriate mounting kit. 2.2.5 Purge air switching (not in the explosion proof version) The purge air switch is accessible above the pneumatic terminal strip with the housing open (figure 2-6). In the IN position the inside of the housing is purged with very small amounts of clean, dry instrument air. In the OUT position the purge air is fed directly to the outside air. Figure 2-6 Purge air switch on the valve block, <strong>view</strong> of the positioner onto pneumatic connection side with cover open 2.2.6 Restrictors In order to achieve travel times of > 1.5 s in small actuators, the air rate can be reduced with the restrictors Y1 and Y2 (figure 2-7, in explosion proof version, see figure 2-4, page 18). By turning to the right the air rate is reduced up to shutting off. To set the restrictors it is advisable to close them and then open them slowly (see initialization RUN3). In the case of double-acting <strong>valves</strong> make sure that both chokes are set approximately equal. Hexagon socket 2.5 mm Y1 Y2 Figure 2-7 Restrictors SIPART PS2 Manual A5E00074631-03 21
Page 1: Manual Edition 07/2003 sipart ps2 E
Page 4 and 5: Copyright e Siemens AG 2000 All rig
Page 6 and 7: 3.4.2 Connection in intrinsically s
Page 8 and 9: Information for the Operator This m
Page 10 and 11: Information for the Operator ! WARN
Page 12 and 13: Information for the Operator The fo
Page 14 and 15: Introduction Degree of protection E
Page 16 and 17: Introduction 1 2 4 3 1 Actuator 2 P
Page 18 and 19: Design and Functional Principle put
Page 20 and 21: Design and Functional Principle 2.2
Page 26 and 27: Design and Functional Principle 1 B
Page 28 and 29: Design and Functional Principle 5.
Page 30 and 31: Design and Functional Principle 6 1
Page 34 and 35: Design and Functional Principle The
Page 36 and 37: Design and Functional Principle 34
Page 38 and 39: Preparing for Operation 90 14 3x G1
Page 40 and 41: Preparing for Operation . NOTE The
Page 42 and 43: Preparing for Operation Assembly of
Page 44 and 45: Preparing for Operation 3.3.3 Mount
Page 46 and 47: Preparing for Operation 2 17 16 12
Page 48 and 49: Preparing for Operation 3.3.6 Assem
Page 50 and 51: Preparing for Operation 15 14 4.2 9
Page 52 and 53: Preparing for Operation fastening B
Page 54 and 55: Preparing for Operation . NOTE Use
Page 56 and 57: Preparing for Operation Current out
Page 58 and 59: Preparing for Operation Non-hazardo
Page 60 and 61: Preparing for Operation Current out
Page 62 and 63: Preparing for Operation Non-hazardo
Page 64 and 65: Preparing for Operation SIA module
Page 66 and 67: Preparing for Operation Only a few
Page 68 and 69: Preparing for Operation 3. Switch o
Page 70 and 71: Preparing for Operation 4. Switch o
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Preparing for Operation The first l
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Preparing for Operation The initial
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Preparing for Operation 3.6.7 Autom
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Preparing for Operation 2 set lever
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Preparing for Operation 3.7 Copying
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Operation Figure 4-1 Meaning of the
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Operation 4.3 Operating modes The p
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Operation Manual 4-1 mode In this o
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Operation The following configurati
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Operation . NOTE After ”LWAY, ncS
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Operation y=x 100 % Positioner 1 6.
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Operation The setpoint vertex value
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Operation 40.YCDO 41.YCUP Value for
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Operation 48. TIM 49. LIM 50. STRK
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Operation 4.5 Diagnosis 4.5.1 Diagn
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Operation 4 A1CNT 5 A2CNT Alarm cou
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Operation 31 VENT1 32 VENT2 Number
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Operation Error Event code 1 Remain
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Operation 8 Monitoring of the dead
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Operation Upper line Lower line Mea
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Operation 4.7 Optimization of the c
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Care and Maintenance 8. Replace the
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Technical Data ■ Technical data S
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Technical Data ■ Technical data (
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Technical Data ■ Technical data (
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Scope of delivery 7.1 Ordering data
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Scope of delivery 7.4 Scope of deli
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Index Installation positions, favor
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Appendix 9.2 Certificates 9.2.1 EC
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Appendix 9.2.3 EC Type-Examination
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Appendix 130 SIPART PS2 Manual A5E0
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Appendix 9.2.6 FM Approval Report (
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Appendix 9.2.7 FM Approval Report 1
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Appendix 9.2.8 CSA Certificate of C
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Appendix 9.2.9 Control Drawing A5E0
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