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46 

Electric Actuator

 

Rev 12 – NOV 2019 

OMMG00012 

1

 

Switch off and isolate the actuator electrical power supply. 

2

 

Remove the socket head cap screws and carefully lift off the cover. 

3

 

Release the potentiometer wires from the cable ties and disconnect from 

the terminal strip. 

Note 

To access the potentiometer connections on the terminal strip, it may be 

necessary to release the terminal strip bracket as described in the anti-

condensation heater replacement procedure (Sect 4.8.8 – page 48). 

4

 

Unscrew the screw in the centre of the position indicator (1) and remove 

the indicator from the position indicator shaft (17). 

5

 

Remove screw (30) and washer (29) and slide potentiometer bracket (3) 

off the position indicator shaft (17). 

6

 

Loosen grubscrew (27) and withdraw the small spur gear (6) from the 

potentiometer shaft. 

7

 

Remove nut (5) and washer (4) then remove the potentiometer (2) from 

the bracket. 

8

 

Insert replacement potentiometer into the bracket with the connections 

orientated as illustrated and secure with washer (4) and nut (5). 

9

 

Connect the potentiometer wires into the terminal strip (refer to Fig 7, 

page 26). 

10

 

Slide the small spur gear (6) onto the potentiometer shaft and tighten the 

grubscrew (27). 

11

 

Slide the potentiometer bracket onto the position indicator shaft and 

secure to the potentiometer bracket mounting pillar (18) with screw (30) 

and washer (29). 

12

 

Refit the position indicator (1) to the top of the shaft. Manually wind the 

actuator to each end of travel and ensure the indicator aligns with the 

scale on the cover. 

13

 

Use new cable ties to secure the potentiometer wires to the 

potentiometer bracket and potentiometer bracket mounting pillar. 

14

 

Carry out the potentiometer adjustment procedure (Sect 4.8.7). 

4.8.7

 

Potentiometer Adjustment 

The purpose of this procedure is to position the potentiometer gears so the 

potentiometer wiper operates over the centre section of the track. 

Set the potentiometer as follows (refer to Fig 15, page 47): 

Содержание 10GEF

Страница 1: ...Doc No OMMG00012 Revision 12 NOV 2019 G Valve electric actuator Operation and Maintenance Manual...

Страница 2: ......

Страница 3: ...Operation 16 3 4 Maintenance 16 Electric Actuator 23 4 1 Description 23 4 2 Identification of Model Number 29 4 3 Mechanical Installation 29 4 4 Actuator Re orientation 30 4 5 Electrical Installation...

Страница 4: ...4 Contents Rev 12 NOV 2019 OMMG00012 Technical Data 73 9 1 Selection of G Valve options 73 9 2 Technical Specifications 78...

Страница 5: ...ery Directive 7 1 6 2 EU Low Voltage Directive 7 1 6 3 EU EMC Directive 7 1 6 4 EU Pressure Equipment Directive 7 1 1 Scope This Manual details the installation operation and maintenance of the AMOT e...

Страница 6: ...Maintenance of the valve and actuator should only be carried out by suitable trained and competent persons and only after they have read and understood all applicable sections of this manual Failure t...

Страница 7: ...ormance 1 6 3 EU EMC Directive All versions of Electric actuator described in this manual have been assessed against the requirements of the EMC Directive and have found to be in conformance 1 6 4 EU...

Страница 8: ...6 1 2 SEP 5K 7 PN10 10 PN16 10K 125lb 150lb 8GEF 10GEF 12GEF 14GEF 16GEF PN6 6 2 SEP 5K 7 PN10 10 PN16 10K 125lb 150lb Steel and Stainless Steel 2GEF 3GEF 4GEF PN6 6 1 2 SEP 5K 7 PN10 10 10K 14 PN16...

Страница 9: ...control of fluid temperature by diverting or mixing control techniques The valves can be used for fresh and sea water most lubricating oils and other liquids The compact construction of the G Valve en...

Страница 10: ...rately maintaining the temperature The temperature is normally measured at the outlet from the heat source Charge Air Temperature Control The intercooler is used to cool high temperature turbo charger...

Страница 11: ...nsmit B 4 20 mA electronic positioner with position error output 4 mA ref C 4 20 mA electronic positioner with position error output 12 mA ref D Reverse Mode Anti clockwise rotation with increasing de...

Страница 12: ...tion is defined in the model code section Rotor Type on the previous page It is possible to change the mode of operation in some circumstances as follows Table 2 Mode Conversion See notes From To Mode...

Страница 13: ...is fitted or connections to terminals 11 and 12 swapped for switched live versions See section 4 6 page 34 4 Both 2 and 3 above apply 5 Both 1 and 3 above apply 2 5 System Components The system compri...

Страница 14: ...14 System Overview Rev 12 NOV 2019 OMMG00012...

Страница 15: ...e 3 2 Installation WARNING The valve body is heavy refer to Section 9 Technical Data Sect 9 1 3 page 76 The appropriate manual handling precautions must be applied to avoid personnel injury When insta...

Страница 16: ...electrical drive with the actuator declutching lever and turning the handwheel On failure of the valve to operate correctly refer to the troubleshooting guide in 0 3 4 Maintenance 3 4 1 Dismantle and...

Страница 17: ...emove and discard the upper and lower shaft O rings 2 11 Inspect the valve internals for wear damage and cleanliness Clean and replace if necessary Note It is recommended that the bearings 1 and 8 are...

Страница 18: ...removed from a valve installed in a live system 4 Remove the actuator from the valve body in accordance with Sect 4 8 1 page 36 5 Remove the retaining plate 5 and discard the O ring 3 6 Mark adjacent...

Страница 19: ...smantle Valve refer to Fig 5 page 20 If the valve is installed in the upright position it is possible to dismantle the valve whilst still installed in the pipework as follows WARNING The valve may con...

Страница 20: ...d discard the upper and lower shaft O rings 10 13 Inspect the valve internals for wear damage and cleanliness Clean and replace if necessary Note It is recommended that the upper and lower composite b...

Страница 21: ...h Valves Fig 3 page 16 Service Kit Part No 47961X102 2 inch valve Service Kit Part No 47961X103 3 inch valve Comprising Ref Description 2 inch qty 3 inch qty 6 O Ring Cover 43630L002 1 43630L002 1 2 O...

Страница 22: ...43617L002 1 43617L002 1 11 O Ring End Cover 43619L002 1 43619L002 1 9 Composite Bearing Lower 46457L125 1 46457L125 1 8 Composite Bearing Upper 46457L125 1 46457L125 1 4 Coupling Pin 43406L035 1 43406...

Страница 23: ...nto Valve Body 36 4 8 2 Lubrication 38 4 8 3 Limit Switch Replacement 39 4 8 4 Limit Switch Adjustment Rotor Not Visible 41 4 8 5 Limit Switch Adjustment Rotor Visible 43 4 8 6 Potentiometer Replaceme...

Страница 24: ...avel to provide indication signals Torque limit micro switches disconnect power to the motor if a factory set torque is exceeded Anti condensation heater Wired in when condensation can form due to flu...

Страница 25: ...available as 4 20 mA output position re transmission Status indicator LED Error voltage signal to indicate actuator status Grounded for normal operation Pulled to input voltage by open collector durin...

Страница 26: ...26 Electric Actuator Rev 12 NOV 2019 OMMG00012 Fig 7 EA Actuator Internal Wiring Without Positioner...

Страница 27: ...27 Electric Actuator OMMG00012 Rev 12 NOV 2019 Fig 8 EA Actuator Internal Wiring With Positioner for Switched Live Control...

Страница 28: ...28 Electric Actuator Rev 12 NOV 2019 OMMG00012 Fig 9 EA Actuator Internal Wiring With Positioner...

Страница 29: ...Mode Anti clockwise rotation with increasing demand current 4 20 mA electronic positioner with position re transmission E 4 20 mA electronic positioner with demand re transmission F 4 20 mA electroni...

Страница 30: ...ted to the valve body with the cable entries over the cold port For some installations it could be more convenient to have the actuator rotated to a different position The actuator can be orientated i...

Страница 31: ...item 1 Fig 10 page 30 CAUTION If the valve is mounted with the actuator below it take great care in slackening these bolts Once freed the actuator will drop from the valve 7 Completely remove the bolt...

Страница 32: ...ransients spikes The power supply must be fused at 1 5 to 2 times the rated current Check the motor nameplate and ensure the actuator voltage is correct for the local power supply Use wire with the co...

Страница 33: ...ersions of the EA actuator Where a Positioner is also fitted the Positioner uses the potentiometer to determine the position of the actuator With a Positioner fitted 5V dc is applied across the track...

Страница 34: ...tions within each parameter are CW ACW on increasing mA o CW on increasing mA o ACW on increasing mA Action on loss of mA demand signal o Move to 4mA position o Move to 20mA position o No actuator mov...

Страница 35: ...is possible at any time by disengaging electrical drive by pulling the actuator declutching lever and turning the handwheel Once in Manual mode the actuator returns to automatic mode as soon as the d...

Страница 36: ...ble 3 Actuator mounting bolt size and torque settings Valve Size Mounting Plate to Actuator Fig 12 4 Mounting Plate to Valve Body Fig 12 1 Bolt Size Torque Setting Bolt Size Torque Setting 2 inch M8 x...

Страница 37: ...tor may rotate uncontrollably in the body An actuator must never be removed from a valve installed in a live system The actuator case can be hotter than the ambient temperature Care must be taken when...

Страница 38: ...fore feeding and connecting it to the actuator 4 Ensure the actuator electrical power supplies are switched off and isolated 5 Feed the electrical wiring through the required cable entry in the actuat...

Страница 39: ...bracket 3 and potentiometer bracket mounting pillar 18 5 Remove the screw 30 and split washer 29 and pull off the potentiometer bracket 3 from the position indicator shaft 6 Undo the grubscrew 8 and p...

Страница 40: ...terminal strip the switches identified as item 25 are the open switches and item 26 are the close switches 12 Remove the two screws 28 nuts 19 and washers 20 and remove the switch pair to be replaced...

Страница 41: ...acket and potentiometer bracket mounting pillar 23 Carry out limit switch adjustment in accordance with Sect 4 8 4 24 Carry out potentiometer adjustment in accordance with Sect 4 8 7 4 8 4 Limit Switc...

Страница 42: ...of the cam switch not pressed 3 6 Slowly turn the cam clockwise until the first switch Open limit switch OLS just operates 3 7 Tighten the grubscrew 23 3 8 Repeat from step 3 1 without loosening the c...

Страница 43: ...ctuator power supply and control circuits and check for correct operation 4 8 5 Limit Switch Adjustment Rotor Visible The limit switches and mechanical end stops are set by the manufacturer and should...

Страница 44: ...acken the nut on the mechanical end stop screw nearest to the handwheel and turn the screw counter clockwise by approximately 10 turns 3 8 Turn the handwheel 2 turns counter clockwise and check that t...

Страница 45: ...limit switches affects the calibration of the optional Positioning Electronics Unit If fitted it must be re calibrated before the actuator is brought into service refer to OMM47962X00013 5 If fitted c...

Страница 46: ...the bracket 8 Insert replacement potentiometer into the bracket with the connections orientated as illustrated and secure with washer 4 and nut 5 9 Connect the potentiometer wires into the terminal st...

Страница 47: ...potentiometer shaft until the ohmmeter indicates the centre value determined at step 4 7 Rotate the large spur gear 7 on the shaft until the grubscrew 8 is in an accessible position for tightening 8 S...

Страница 48: ...supplies must be isolated from the actuator before the cover is removed 1 Switch off and isolate the actuator electrical power supply 2 Remove the socket head cap screws and carefully lift off the act...

Страница 49: ...ver O ring is correctly fitted and undamaged 13 Refit the actuator cover and secure with the socket head cap screws 14 Energise the actuator power supply and control circuits and check for correct ope...

Страница 50: ...e Storage The following conditions must be applied when storing the actuator on site Storage location must be clean dry and free from excessive vibration and rapid temperature change Permitted tempera...

Страница 51: ...tment Refit the cover and tighten the socket headed cap screws 4 10 Recommended Spares The following is a list of recommended spares for the actuator Description Part Number Actuator lid O ring EA100...

Страница 52: ...52 Electric Actuator Rev 12 NOV 2019 OMMG00012...

Страница 53: ...he needs of a wide variety of temperature control systems The 8071D can be used in a number of ways In conjunction with 2 solid state relays In conjunction with an 8073C solid state relay module Incor...

Страница 54: ...54 PID Controller Rev 12 NOV 2019 OMMG00012...

Страница 55: ...to 350 C 150 to 600 F 6 1 1 Identification of Model Number 8060A 1 2 Conduit Thread M20 1 PG 13 5 2 PG 16 3 NPT 4 Installation Thread BSPTr 2 NPT 3 6 2 Installation When installing the temperature sen...

Страница 56: ...accessible location for future maintenance access Use heat transfer compound in thermal well Fig 17 Temperature Sensor Fig 18 Temperature Sensor Connections 6 3 Maintenance No maintenance is possible...

Страница 57: ...ling Suitable support of the valve during lifting must be given to ensure safe relocation of the equipment Lifting provision for the larger valve assemblies is provided by means of a number of eyebolt...

Страница 58: ...ication chosen are followed e g bolting and gasket material requirements In situations where the valve has been subject to prolonged low temperatures such as on site or warehouse storage great care mu...

Страница 59: ...and fit and tighten the remaining nuts as per the relevant pattern shown in Fig 19 in at least 4 stages to compress the flange gasket uniformly Note stages 2 5 should be completed with a suitable cali...

Страница 60: ...flow path Do not run cables in very hot areas which can cause cable failure and inaccurate measurement Avoid installation in areas of high vibration Avoid installation into potential air pockets Posi...

Страница 61: ...The following options are available 8071D controller with 2 solid state relays Fig 20 page 62 8071D controller with an 8073C solid state relay module Fig 21 page 63 8072D controller Fig 22 page 64 Pos...

Страница 62: ...62 System Integration Rev 12 NOV 2019 OMMG00012 Fig 20 System Wiring Diagram 8071D Controller with two Solid State Relays...

Страница 63: ...63 System Integration OMMG00012 Rev 12 NOV 2019 Fig 21 System Wiring Diagram 8071D Controller with 8073C Relay Module...

Страница 64: ...64 System Integration Rev 12 NOV 2019 OMMG00012 Fig 22 System Wiring Diagram 8072D Controller...

Страница 65: ...65 System Integration OMMG00012 Rev 12 NOV 2019 Fig 23 System Wiring Diagram Electronic Positioning Unit 4 20 mA input...

Страница 66: ...66 System Integration Rev 12 NOV 2019 OMMG00012 Fig 24 System Wiring Diagram Electronic Positioning Unit switched mains voltage input...

Страница 67: ...67 System Integration OMMG00012 Rev 12 NOV 2019...

Страница 68: ...68 System Integration Rev 12 NOV 2019 OMMG00012...

Страница 69: ...oller Adjust PID values Check dead band settings on PID Controller Adjust dead band settings Check location of temperature sensor is away from bends and junctions section 7 1 page 57 Move temperature...

Страница 70: ...ch setting Adjust Check for obstructions in valve Clear obstructions Check mechanical stops on actuator Adjust Check setting of Potentiometer 4 8 7 page 46 Adjust position feedback sensor Check 4 20mA...

Страница 71: ...nput 4 20 mA signal out of range Check that 4 20 mA input signal is connected and operating within limits Internal actuator fault Investigate Flashing at 10 Hz Actuator cannot meet input demand Check...

Страница 72: ...d from the diagnostics steps above that the Positioner is faulty a replacement Positioner can be fitted However it must be calibrated to match the actuator and this requires a Configurator See manual...

Страница 73: ...cosity Correction 76 9 1 5 Valve Sizing Calculations 77 9 1 6 Bypass Flowrates 78 9 2 Technical Specifications 78 9 2 1 Actuator 78 9 1 Selection of G Valve options The selection of the G Valve for a...

Страница 74: ...74 Technical Data Rev 12 NOV 2019 OMMG00012 9 1 1 Valve Bore Fig 25 Valve Selection Curve...

Страница 75: ...1 160 6 299 180 7 087 240 9 449 295 11 614 350 13 714 400 15 748 460 18 110 515 20 276 ND16 125 4 921 160 6 299 180 7 087 240 9 449 295 11 614 355 13 967 410 16 142 470 18 504 525 20 670 ASA 125 lb 12...

Страница 76: ...te The viscosity is normally expressed in Centistrokes Where ISO oil is used the grade number is also the viscosity eg ISO VG46 is 46 Centistrokes at 40 C 110 F Viscosity Correction By using the corre...

Страница 77: ...e drop of 0 069 bar Cv is the imperial coefficient See the table below for examples of Kv and Cv for the G valves 2 3 4 6 8 10 12 14 16 Kv 82 207 323 729 1296 2025 2918 3972 5187 Cv 96 242 378 851 151...

Страница 78: ...l Specifications 9 2 1 Actuator Power supply Motor thermal protection Potentiometer 115 V ac 10 230 V ac 10 50 60 Hz single phase Open 150 nominal 1 k standard 5 k option Life 10 million revolutions L...

Страница 79: ...2 3 4 6 8 10 in 100 Nm 25 21 0 88 1 7 EA200 12 14 in 200 Nm 31 26 0 92 1 9 EA400 16 in 400 Nm 31 26 1 62 3 65 Mechanical Model Valve size Mounting Weight kg Drive interface ISO 5211 mm PCD Thre ad EA1...

Страница 80: ...info amot com AMOT Controls GmbH Rondenbarg 25 Asia and Australasia 22525 Hamburg Germany AMOT China Bd 7A No 568 Long Pan Rd Malu Jiading Shanghai 201801 China Tel 86 0 21 5910 4052 Fax 86 0 21 5910...

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