Emerson BETTIS E796 2000 M2CP Скачать руководство пользователя страница 12 | Manualshive

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Emerson BETTIS E796 2000 M2CP Скачать руководство пользователя страница 12

Mar 2013

Installation and Maintenance

Part Number: E2K-402-0313, Rev. A

10

Section 4: Limit Switch Setting Instructions

Limit Switch Setting Instructions

2.

Disengage spring loaded gear: Push Disengage Shaft in (fig. 7a) down, then rotate

90° so shaft is captured down. This will disengage limit switch gears from spring
loaded drive gear.

TIP:

Many turns may be required to set limit switches; it may be convenient to use a
reversible variable speed drill to rotate the adjusting shafts instead of a screw-
driver.

Figure 7

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Содержание BETTIS E796 2000 M2CP

Страница 1: ...TTIS for replacement parts or for technical questions we MUST have actuator nameplate information including Job Serial and Model numbers This allows us to check records of BETTIS equipment furnished When ordering parts specify repair part by BETTIS part number and description from drawings furnished with actuator BETTIS Parts Department Fax 281 261 3834 ...

Страница 2: ... 3 Assembly To Valves 5 3 1 Threaded Valve Stem 5 3 2 Quarter Turn Valve 7 Section 4 Limit Switch Setting Instructions 9 4 1 TO SET OPEN LIMIT SWITCH LSO 9 4 2 SET LSC CLOSE LIMIT SWITCH 11 4 3 TO SET INTERMEDIATE SWITCH LSA OR LSB if included 12 4 4 TORQUE SEATED VALVES 12 4 5 TORQUE SWITCH CALIBRATION 12 4 6 To Set Open Torque Switch TSO 13 4 7 Torque Switch Rotation Limit 13 Section 5 Multi tur...

Страница 3: ... forces voltages and flammable or toxic media 1 2 DON T 1 Don t Start up without reading this manual 2 Don t stack actuators 3 Don t store actuator on the ground unprotected 4 Don t lift the unit by clutch lever or handwheel 5 Don t lift a valve assembly by electric actuator 6 Don t operate electrically without first checking for proper phase rotation valve position torque and limit switch adjustm...

Страница 4: ...ef Vent Fitting P N 83385 Placement on Actuator can be determined only after field location and position of valve has been determined Select the highest 1 2 NPT vent location in the Gear Box remove 1 2 NPT Plug and replace with P N 83385 Possible locations of the Plugs are shown on BETTIS Outline Drawing 1 6 Short Term Storage 1 Actuator should be stored in the recommended mounting position The mo...

Страница 5: ...h a plastic sheet This serves as partial protection from rain 1 7 Long Term Storage Stored more than one year from shipment 1 Store indoors or MCP must be removed and stored in protected area Follow procedures of short term storage WARNING FAILURE TO STORE ACTUATOR PROPERLY WILL VOID WARRANTY OF ELECTRICAL ELECTRONIC COMPONENTS 2 Don t torque seat valve sluice gate or damper unless the valve manuf...

Страница 6: ...wire 2 strip and install wire ferrule 3 strip and install crimp on insulated or non insulated ring tongue or similar terminal Circuit Breaker accepts 1 bare wire strip or 2 wire ferrule Figure 2 2 1 Electrical Hook Up 1 STEP 1 Move valve to mid position by handwheel This will allow sufficient time to stop actuator in case of improper hook up or reversed incoming power voltage phases 2 STEP 2 Ident...

Страница 7: ...to drilled hole to prevent Stem Nut Locknut from working loose and turning NOTE When installing the Locknut Lockpin it should extend 1 4 inch above the Drive Sleeve assembly to allow for future removal 3 1 1 1 MOUNTING SCREWS If BETTIS supplied adaption the mounting screws are included If the adaption to the valve was the responsibility of others the mounting screws are not furnished by BETTIS Scr...

Страница 8: ...e before securing unit to Spool 7 Re install thrust plate mounting bolts Tighten to proper torque NOTE Reverse procedure if Stem Nut needs to be replaced Actuator does not need to be returned to factory for this procedure 3 1 3 SPLINE BUSHING QUARTER TURN BETTIS removable Spline Bushing allows easy adaption to valve shaft diameter and Key Actuator may be rotated with respect to the valve shaft for...

Страница 9: ...4 Loosen both Locknuts 46 and back out the two Stopbolts 86 to allow the valve to close and open fully Ensure Electrical Travel Limit Switches have been properly adjusted see appropriate section of this manual proceed as follows 1 Run the actuator electrically to the full Close 2 Screw the Close Stopbolt 86 in until it seats then back off 1 2 turn Install Washer 48 and tighten Locknut 46 3 Run the...

Страница 10: ...uator electrically to full Close 2 Screw Close 1 Stopbolt in until it seats then back off 1 2 turn Tighten 2 Lockscrew 3 Run actuator electrically to full Open Screw Open 1 Stopbolt in until it seats back off 1 2 turn Tighten Locknut 4 Install 3 4 Seal Washer Screw CAUTION Do not set Actuator Position Limit Switches to drive into mechanical stops Damage can occur if electric unit is allowed to rep...

Страница 11: ...r motor voltage and make sure that open contactor moves valve Open and close contactor moves valve Closed DANGER Improper power voltage phasing eliminates protection of both position limit switch and torque switches risking valve damage 4 1 TO SET OPEN LIMIT SWITCH LSO 1 Open valve during handwheel operation note rotation direction of screwdriver fig 6 in LSO Adjusting Shaft After valve is fully O...

Страница 12: ...isengage spring loaded gear Push Disengage Shaft in fig 7a down then rotate 90 so shaft is captured down This will disengage limit switch gears from spring loaded drive gear TIP Many turns may be required to set limit switches it may be convenient to use a reversible variable speed drill to rotate the adjusting shafts instead of a screw driver Figure 7 ...

Страница 13: ...ll rise 5 IMPORTANT to ensure limit switch gears have re engaged properly with spring loaded drive gear firmly jiggle rotate all adjusting shafts with screwdriver back and forth Proper engagement has been made if all shafts LSC LSO LSA LSB will not turn with screwdriver 4 2 SET LSC CLOSE LIMIT SWITCH 1 Close valve using handwheel During handwheel operation note rotation direc tion of screwdriver i...

Страница 14: ... handwheel Set valve to the desired torque Observe rotating dial for number that corresponds to desired Close Torque b Insert screwdriver in TSC slot Press down to disengage and turn arrow to setting determined in a Release at this point and it will re engage and remain set c Back the valve away from Close position and reseat by handwheel to verify torque trip point is at desired setting The trip ...

Страница 15: ... Instructions Limit Switch Setting Instructions 4 6 To Set Open Torque Switch TSO a Follow procedure as for TSC at TSO dial 4 7 Torque Switch Rotation Limit Adjustment rotation may be limited Remove dial to expose anti rotation pins Remove pins from position 10 and insert into the desired hole Figure 10 ...

Страница 16: ...rn valve stem nut turns to 270 degrees 75 turn for viewing position indication arrow thru glass window on actuator electric switch compartment cover Point of rotation reference has been designated as N number N is the total number of electric actuator 12 tooth gear limit spring load pinion rotations for full valve stroke Figure 11 5 1 Calibration MDPI POT Drive is calibrated after LSC and LSO are ...

Страница 17: ... Quarter Turn Model P Q R M Top mount P Q and R and several models of M MG s side mount do not require MDPI gear reduction assembly for 1 turn Pot If multi turn Pot is required BETTIS JOB SPEC SHEET will list 84131 0000 or the correct assembly Spec Sheet will list 1 Pot clutch gear 2 Pot input gear and 3 potentiometer Figure 12 ...

Страница 18: ...s have been set Pg 9 and Pot adjustment on Pg 15 proceed 1 Voltmeter probes in Red FB test point and in Black GND test point 2 Close valve Meter should read 1 volt DC If it does not adjust ZERO 3 Open valve Meter should read 5 volts DC If it does not adjust SPAN 4 Repeat steps 2 and 3 until no readjustment is necessary 5 After a command signal has been connected adjust BAND so valve moves to desir...

Страница 19: ... place Voltmeter Probe in Green SIG test point and probe in Red FB test point Move valve using Handwheel Observe reading when valve repositions BAND adjustment is 1 to 7 83957 2 has a thirty 30 second delay for 100 starts per hour maximum NOTE Feedback Pot may be mounted on MDPI Multi turn valves or mounted on gear cover 1 4 Turn valves ...

Страница 20: ...2 and 18 VAC PILOT LAMPS LED INDICATORS Actuated by position limit switches POSITION LIMIT SWITCH LSC shows open LSO shown made TORQUE LIMIT SWITCH N C Double Break Contacts Open when overload occurs N O contacts make Fuse PUSHBUTTONS N C Momentary N C Contact PUSHBUTTONS N O Momentary N O contacts connects control voltage to reversing contactor coils Seal in contacts C and O 14 13 on contactor al...

Страница 21: ...Diagram Symbols REVERSING CONTACTOR Showing Open and Close coils Mechanical Interlock and Electrical Interlock Contacts O 21 22 C 21 22 NUISANCE TRIP To prevent TSO contact tripping when valve has been jammed closed LSC contact allows valve to open slightly Contact then open ensuring torque protection for remaining travel ...

Страница 22: ...l open or closed direction Damaged or bent valve stem Refer to Valve Maintenance Valve packing too tight Refer to Valve Maintenance Jammed Valve obstruction in line Refer to Valve Maintenance Handwheel will not operate valve Handwheel shaft bearing assembly malfunction Repair or replace as necessary Sheared gear key or Stripped Gearing Replace as necessary PS Shifter Position or Malfunction Replac...

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