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Worcester Actuation Systems

FCD WCAIM2011-00

(Part 09599)

Series RT92 Remote Terminal Unit

Installation, Operation and Maintenance Instructions

I. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

II. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. ENVIRONMENTAL CONSIDERATIONS . . . . . . . . . . . . . . . .2

1. TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2. CIRCUIT BOARD TEMPERATURE CONSIDERATIONS . .2

3. HUMIDITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

4. INPUT CIRCUIT NOISE PROTECTION . . . . . . . . . . . . . .2

III. ELECTRONIC CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . .2

A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

B. CIRCUIT BOARD CONFIGURATIONS . . . . . . . . . . . . . . . . .2

C. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

D. DC POWER CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

IV. INSTALLATION OF RTU INTERFACE

INTO SERIES 75 ACTUATOR . . . . . . . . . . . . . . . . . . . . . . . .3

A. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1. CHECK KIT FOR PARTS . . . . . . . . . . . . . . . . . . . . . . . . .3

2. TOOLS NEEDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3. OPERATIONAL CHECK OF BASIC ACTUATOR . . . . . . . .4

B. MOUNTING POTENTIOMETER . . . . . . . . . . . . . . . . . . . . .4

1. MOUNTING SINGLE POTENTIOMETER

INTO SERIES 75 ACTUATOR . . . . . . . . . . . . . . . . . . . . .4

2. POTENTIOMETER WIRING . . . . . . . . . . . . . . . . . . . . . .4

3. ADJUSTING POTENTIOMETER . . . . . . . . . . . . . . . . . . .5

4. DUAL POTENTIOMETER . . . . . . . . . . . . . . . . . . . . . . . .5

C. MOUNTING CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . .5

D. POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .6

V. CIRCUIT BOARD ADJUSTMENTS AND INFORMATION . . . . . .6

A. I-LIMIT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

B. LOCAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

C. REMOTE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

D. FUSE PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

E. RELAY OUTPUT OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . .8

VI. CUSTOMER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . .8

VII. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1 2 3 4 5 6 7 8

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Página 1 - Worcester Actuation Systems

Worcester Actuation SystemsFCD WCAIM2011-00(Part 09599)Series RT92 Remote Terminal UnitInstallation, Operation and Maintenance InstructionsI. INTRODUC

Página 2 - III. ELECTRONIC CIRCUIT BOARD

2I. INTRODUCTIONThe Flowserve Worcester RTU (Remote Terminal Unit) Interface Cardis designed for use with the low power Worcester Series 75 DCElectric

Página 3 - ACTUATOR

3C. ControlsThere is only one control that is common to all three versions ofthe RTU Interface and that is the current limit adjustment(I-Limit). Thi

Página 4

b. Additional Parts For Version With 0-5 Volt PositionIndication Output:Qty. Name1 Potentiometer Kit Subassembly2. Tools Needed:1/4" nut driver,

Página 5

53. Adjusting Potentiometer: (Reference Figure 4)a. Place the large face gear (item 12) over the actuator shaftwith the gear teeth down and secure w

Página 6 - V. CIRCUIT BOARD ADJUSTMENTS

6d. Assemble circuit board into actuator. Slide rubbergrommets onto insulating board. Put nylon washersunder heads of self-tapping screws (Five screw

Página 7

7Resistor Resistance Value (R8) Approx. Current Trip RangeA .75 ohm 5 watt .8 to 1.6 ampB 1.5 ohm 5 watt .4 to .8 ampC 2.5 ohm 5 watt .25 to .5 amp

Página 8 - VII. TROUBLESHOOTING

output has a second fuse (F2) which supplies power to theposition output circuit so that there will still be position outputavailable even if the main

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Flowserve RT92 Series Manual do Utilizador

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