SRI983 Electro-Pneumatic Positioner - explosion ... - Foxboro Eckardt

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6 <strong>SRI983</strong> MI EVE0103 A-(en) 2.2 ATTACHMENT KIT FOR DIAPHRAGM ACTUATORS 2.2.1 Dimensions 116 4.57 8 .31 43 1.69 71 2.80 6,5 .26 Attachment to casting yoke according to IEC 534-6 (NAMUR) Code EBZG-GN 71 2.80 96 3.78 9 .35 43 1.69 9 .35 72 2.83 20 80 3.15 M8 17 9 9 54 2.13 176 6.93 49,5 1.95 182 7.17 Mounting bracket according to IEC 534-6 (NAMUR) for Code EBZG-GN, FN 11 .43 21 .83 30 52 2.05 9 .35 4 .16 .31 8 7,9 +0,2 .31 +.01 2,5 .10 20 6 .24 71 2.80 Attachment to pillar yoke according to IEC 534-6 (NAMUR) Code EBZG-FN 20 ... 35 .79 ... 1.38 21 83 3.27 65 2.56 20 91 3.58 10 .39 43 1.69 72 2.83 M6 7,8 -0,05 .31 -.002 17 54 2.13 Feedback lever Code EBZG-AN, -FN, -GN Code EBZG-BN (extended version) 14 .55 10 .39 mm in Corrier bolt for attachment to valve stem 20 .78 9 14 15 16
MI EVE0103 A-(en) <strong>SRI983</strong> 7 2.2.2 Determination of mounting side Single-acting diaphragm actuators Check whether the actuator is in the safety position required by the process (Does the actuator open or close with spring force?). The mounting side is selected from the table below in accordance with the direction of action and the required direction of movement of the spindle for an increasing input signal. Actuator closes with spring force Changeover plate setting Actuator opens Changeover with spring force plate setting The arrow indicates the direction of movement of the spindle at increasing input signal. The direction of action of the input signal can be set on the changeover plate 50 (see page 23): N= Normal direction of action (increasing input signal produces increasing control pressure to the actuator) U= Reverse direction of action (increasing input signal produces decreasing control pressure to the actuator) Double-acting diaphragm actuators For double-acting positioners the changeover plate 50 always stays in the “N” setting. The assignment of the input signal to the direction of movement of the actuator spindle is determined by the selection of the mounting side of the positioner and the piping of the positioner outputs to the actuator: If the actuator spindle is to ascend with an increasing input signal, output y1 is connected at top of the actuator and output y2 is connected at bottom. The positioner is mounted at the right-hand side. If the actuator spindle is to retract with an increasing input signal, output y1 is connected at bottom and output y2 at top of the actuator. The positioner is mounted at the left-hand side. Changeover plate setting The arrow indicates the direction of movement of the spindle with an increasing input signal. Changeover plate setting 2.2.3 Attachment to diaphragm actuators Attachment of the positioner is made using the attach-ment kit for diaphragm actuators according to DIN IEC 534-6 at right or left-hand side of the actuator. a) Screw the carrier bolt 16 into actuator coupling (see Fig. 12). b) Screw mounting bracket 20 flush with the positioner with two M 6 socket head cap screws (5 mm A/F). c) Fasten positioner with mounting bracket 20 to the diaphragm actuator. For FOXBORO ECKARDT diaphragm actuators with cast yokes: fasten mounting bracket 20 with screw M 8 to the threaded hole in the cast yoke. This ensures that the feedback lever 9 is horizontal at 50 % stroke. For diaphragm actuators with pillars: fasten mounting bracket 20 with two U-bolts 21 to the pillar in such a manner that feedback lever 9 which is loosely attached to shaft 17 of positioner and carrier bolt 16 , is horizontal at 50 % stroke. d) Setactuatortoa0%strokeposition. Attach feedback lever 9 to shaft 17 of the positioner and carrier bolt 16 in such a manner that compensating spring 14 is above carrier bolt 16 when the mounting side is on the right, or below carrier bolt 16 when the mounting side is on left. Align and lock carrier bolt. e) Press stroke factor lever 31 against stop screw 30 and create a frictional connection between feedback lever 9 and shaft 17 of positioner by tightening hexagon cap screw 15 (10 mm A/F) of feedback lever. f) Connect positioner output y1 to single-acting diaphragm actuators and connect outputs y1 and y2 to doubleacting diaphragm actuators. g) Set up electrical connections. h) Connect supply air of min. 1.4 bar to max. 6 bar, but no more than the maximum permissible operating pressure of the diaphragm actuator. i) Fasten housing cover in such a way that air vent of attached device faces downwards (see Mark ‘M‘ in Fig. 12). M 9 16 14 Fig. 12: Actuator with pillars (mounting side left)
Page 1 and 2: Master Instruction 04.2007 MI EVE01
Page 3 and 4: MI EVE0103 A-(en) SRI983 3 1 GENERA
Page 5: MI EVE0103 A-(en) SRI983 5 2 MOUNTI
Page 9 and 10: MI EVE0103 A-(en) SRI983 9 2.3.2 At
Page 11 and 12: MI EVE0103 A-(en) SRI983 11 2.4 Man
Page 13 and 14: MI EVE0103 A-(en) SRI983 13 4.3 Set
Page 15 and 16: MI EVE0103 A-(en) SRI983 15 4.6.2 C
Page 17 and 18: MI EVE0103 A-(en) SRI983 17 5.2 Bas
Page 19 and 20: MI EVE0103 A-(en) SRI983 19 6 TROUB
Page 21 and 22: MI EVE0103 A-(en) SRI983 21 7.3 Rep
Page 23 and 24: MI EVE0103 A-(en) SRI983 23 Single-

SRI983 Electro-Pneumatic Positioner - explosion ... - Foxboro Eckardt

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