Installation and Maintenance Manual
Bettis 2000 Series E1195 MCP
(Product Discontinued)
E2K-401-0918 Rev. 1
September 2018
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Table of Contents
Section 1: Storage Instructions
1.1 Short Term Storage ....................................................................................... 1
1.2 Long Term Storage ........................................................................................ 1
1.3 Do ................................................................................................................. 2
1.4 Don't ............................................................................................................. 2
1.5 Lubrication ....................................................................................................2
1.6 Maintenance ................................................................................................. 3
1.7 Pressure Relief ............................................................................................... 3
Section 2: Assembly to Valves
2.1 Threaded Valve Stem .................................................................................... 4
2.1.1 Thrust Spool Installation (Multi-Turn) .................................................5
2.1.2 Spline Bushing (Quarter-Turn) ............................................................ 6
2.2 Quarter Turn Valve ........................................................................................ 6
2.2.1 Stop Setting Procedure (Quarter-Turn) ............................................... 6
Table of Contents
September 2018
Section 3: MCP and Electrical Hook Up
3.1 Modular Control Package - MCP .................................................................... 8
3.2 Electrical Hook Up ......................................................................................... 9
Section 4: Geared Rotary Limit Switch Setting Instructions
4.1 Before making any switch setting: ............................................................... 10
4.2 To set Open Limit Switch (LSO) .................................................................... 10
4.3 To set Close Lmit Switch (LSC) ..................................................................... 12
4.4 To set Intermediate Switch (LSA or LSB) ....................................................... 12
4.5 Torque Seated Valves .................................................................................. 12
Section 5: Torque Switch TSC and TSO Setting
5.1 Description ................................................................................................. 13
5.2 Adjust with Screwdriver............................................................................... 14
5.3 Approximate Torque Spring Chart ............................................................... 14
5.4 Torque Switch Calibration ........................................................................... 14
5.4.1 To set CLOSE Torque Switch (TSC) ..................................................... 14
5.4.2 To Set OPEN Torque Switch (TSO) ..................................................... 15
5.5 Switch Rotation Limit .................................................................................. 15
Table of Contents
I
Table of Contents
September 2018
Section 6: MDPI and Potentiometer Gear Box P/N 1030
Section 7: Wiring Diagram
Section 8: Troubleshooting ................................................24
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
6.1 Description ................................................................................................. 16
6.2 N Number ................................................................................................... 16
6.3 Calibration .................................................................................................. 16
6.4 MDPI and POT ............................................................................................. 17
6.5 Potentiometer Only .................................................................................... 17
6.6 Gear System to Field Mount MDPI ...............................................................17
6.7 Part No. 1030 - CHANGE ............................................................................. 18
7.1 Symbols for MCP ......................................................................................... 19
II
Table of Contents
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Section 1: Storage Instructions
1.1 Short Term Storage
(Stored at job site less than one year from shipment)
1. Actuator should be stored in the recommended mounting position. The motor
should be horizontal and Electrical Enclosure either horizontal or vertical.
Figure 1
Section 1: Storage Instructions
September 2018
2. Actuator should be stored indoors free from job site dirt, mud, moisture and
temperature changes.
3. If indoor storage is not possible, the actuator must be stored off the ground, above
possible water or snow level. Remove MCP and store with other electrical and
electronic equipment in protected warehouse. If MCP is not removed,
Space Heater MUST be energized to protect Electrical and Electronic Controls.
4. Bettis supplies plugs in each conduit entry. Do not remove until electrical hook-up.
5. Cover units loosely with a plastic sheet. This serves as partial protection from rain.
1.2 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.
1Storage Instructions
Section 1: Storage Instructions
September 2018
1.3 Do
1. Do follow proper storage procedures. Improper storage will void warranty.
2. DANGER: Do check for proper motor rotation. If valve goes wrong direction when
button is pushed, you have no torque or limit protection.
Either incoming power or motor wiring must be reversed.
3. Do read and follow procedures before attempting to energize actuator.
4. Do cut off electric power before opening switch compartment.
5. Do install pressure relief vent in highest point of gearbox.
6. Do use stem covers of sufcient length to protect valve stem.
7. Do clean Electrical Enclosure ange thoroughly & lightly grease before closing.
8. Do secure all Electrical bolts.
9. Do follow an annual maintenance procedure.
10. Do use caution when working on, with, or around valves and actuators. You are
dealing with high pressures, forces, voltages and ammable or toxic media.
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
1.4 Don't
1. 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 rst checking for proper phase rotation, valve
position, torque and limit switch adjustments.
7. Don’t plug the motor by starting and stopping repeatedly to move a valve that is
too stiff. Check for cause.
8. Don’t jumper torque switches except as recommended by Wiring Diagram or
Valve Manufacturer.
9. Don’t use oversize thermal motor overloads to eliminate a tripping problem.
Find the cause and correct.
10. Don’t use a cheater to try to force the handwheel. You can damage gearing and
shafting. Find the cause and correct.
11. Don’t torque seat valve, sluice gate or damper unless the valve manufacturer
recommends.
1.5 Lubrication
Bettis Actuators are factory lled with a high quality lubricant carefully selected to insure
actuator performance under specied operating conditions. Refer to Bettis JOB SPEC
SHEET to identify the lubricant provided. Normal operation of actuator will not require
replacement of lubricant.
2 Storage Instructions
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
1.6 Maintenance
At least once a year a check should be made of your Bettis actuator.
a. Disconnect all electrical power to actuator.
b. Open Electrical Enclosure. Inspect and tighten all electrical connections.
c. Visually inspect for any electrical or mechanical damage.
Replace worn or damaged components.
d. Check lubrication consistency and level. Fill or replace if required.
1.7 Pressure Relief
During normal operation of Electric Actuator, gear temperature increase in combination
with outdoor temperature variations will cause a small pressure build-up.
Bettis furnishes a Pressure Relief Vent Fitting P/N 83385. Placement on Actuator can be
determined only after eld 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.
Section 1: Storage Instructions
September 2018
3Storage Instructions
Section 2: Assembly to Valves
September 2018
Section 2: Assembly to Valves
2.1 Threaded Valve Stem
Figure 2 Stem Nut Installation (Multi-Turn)
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
1. Unscrew Locknut (55) holding Bronze Stem Nut (54) and remove Stem Nut and
Key (52).
2. Lubricate Stem and run Stem Nut down Stem to check acme thread t, then
remove Stem Nut and set aside.
3. Lower actuator over Stem onto valve ange. The screws thru valve ange into
actuator must engage a minimum of one full screw diameter deep into bottom
base and be tightened to a preload. See assembly drawing for screw size and
torque to tighten properly.
4. Screw Stem Nut on Valve Stem until it enters Drive Sleeve. Line Nut Key with Drive
Sleeve keyway and insert Stem Nut Key (52).
5. Turn handwheel in Open direction, pulling the Stem Nut into Drive Sleeve until it
bottoms out (valve will begin to open).
CAUTION
Locknut must be tight against stem nut.
6. Lower Locknut (55) over Valve Stem and screw into place rmly against top of
Stem Nut. Tap Locknut ears using brass drift.
4 Assembly to Valves
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
2.1.0.1 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. Screws
thru adapter MUST engage a minimum of one screw diameter deep into Bettis actuator
base.
2.1.0.2 Locknut Lockpin Installation
1. With the actuator in place on the valve, ensure proper ange mating and valve
actuator orientation.
2. Use a number 30 (.1285) drill bit to drill a hole 3/4 inch deep into the Drive Sleeve
assembly threads for the Locknut Lockpin(56). Use the groove in the Stem Nut
Locknut threads as a guide.
3. Install the Locknut Lockpin (56) into the drilled hole to prevent the Stem Nut
Locknut from working loose and turning.
NOTE:
When installing, the Locknut Lockpin should extend 1/4 inch above the Drive Sleeve
assembly to allow for easy removal.
Section 2: Assembly to Valves
September 2018
2.1.1 Thrust Spool Installation (Multi-Turn)
1. Locate Thrust Mounting bolts.
2. Remove the eight mounting bolts and separate the Spool from the actuator.
3. Position the Spool over the Valve Stem. Thread the Spool onto the Valve Stem until
it meets the valve plate.
4. Bolt and secure the Spool onto valve.
5. Position actuator above Spool. Lower actuator onto Spool while manually rotating
the unit until ears on the Stem Nut and ears on the main Drive Sleeve mesh.
6. Grease the ange face before securing unit to Spool.
7. Re-install thrust plate mounting bolts. Tighten to proper torque.
NOTE:
Reverse procedure if the Stem Nut needs to be replaced. Actuator does not need to be
returned to factory for this procedure.
5Assembly to Valves
Section 2: Assembly to Valves
September 2018
2.1.2 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 unexpected or awkward eld
installations.
1. Move valve to full Open or Close.
2. Place Spline Bushing on valve shaft with Key and tighten set screw.
3. Using the handwheel on actuator, move the Gear Position Indicator Arrow (21)
to full Open or Close (duplicating the position in Step 1).
4. Position actuator so the spline bore is correctly aligned with the Spline Bushing
on stem shaft.
5. Move the actuator onto the shaft until the ange faces properly mate.
Secure with screws thru the adapter ange into the base of the actuator.
2.2 Quarter Turn Valve
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
2.2.1 Stop Setting Procedure (Quarter-Turn)
Built-in mechanical stops are provided to prevent handwheel operation beyond total
valve travel (90° ± 6°).
Positive mechanical stops are in full accordance with AWWA 250% rim pull overload
requirement. End of travel stops are independently adjusted, locked in place and sealed.
Figure 3
6 Assembly to Valves
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Loosen both Locknuts (46) and back out the two Stopbolts (86) to allow the valve to close
and open fully. Insure 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 Closed position.
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 actuator electrically to the full Open position.
4. Screw the Open Stopbolt (86) in until it seats, then back off 1/2 turn.
Install Washer (48) and tighten Locknut (46).
CAUTION
Do not set Actuator Position Limit Switches to drive into mechanical stops. Damage can
occur if electric unit is allowed to repeatedly stall into end stops.
Section 2: Assembly to Valves
September 2018
7Assembly to Valves
Section 3: MCP and Electrical Hook Up
September 2018
Installation and Maintenance Manual
Section 3: MCP and Electrical Hook Up
3.1 Modular Control Package - MCP
Electrical components are Bettis factory assembled, wired and tested as a module,
with three possible MCP congurations.
1. MINI FRAME – Position LimitSwitches, Torque Limit Switches, and Terminal Strip.
(No Controls).
Figure 4 Mini MCP Frame
E2K-401-0918 Rev. 1
2. SHORT FRAME – Furnished when Reversing Contactor or additional electrical
controls are supplied.
Figure 5 Short MCP Frame
8 MCP and Electrical Hook Up
Installation and Maintenance Manual
Stop Pushbutton
Control
E2K-401-0918 Rev. 1
3. FULL FRAME – Reversing Contactor with the addition of electronic plugin modules.
Figure 6 Full MCP Frame
Section 3: MCP and Electrical Hook Up
September 2018
Close Pushbutton
Open Pushbutton
Pilot Lamps
Fuse
Terminal Strip
Transformer
Limit Switch Gear Box
Space Heater
Bettis Modular Control Package (MCP) is available congured in thousands of possible
combinations of electrical and electronic parts. Refer to WIRING DIAGRAM and Bettis JOB
SPEC SHEET provided by Bettis with each actuator.
3.2 Electrical Hook Up
Selector Switch
Torque Switches
Limit Switch Contacts
Reversing
Contactor
Step 1. Move valve to mid-position by handwheel. This will allow sufcient time to
stop actuator in case of improper hookup or reversed power phases.
Step 2. Identify a means of removing power from actuator during check out.
Step 3. Be sure no erroneous remote control signal can be received causing actuator
to energize.
Step 4. Energize Open control to check operation of contactor and push buttons.
Open controls must move valve in Open direction. If valve Closes, actuator
must be stopped and the power leads reversed to correct voltage phasing or
improper eld wiring.
CAUTION
If voltage is improperly phased, Torque and Limit Switches are not in circuit to protect valve.
Step 5. Seal all eld conduit entries in accordance with National Electric Code
requirements
9MCP and Electrical Hook Up
Section 4: Geared Rotary Limit Switch Setting Instructions
September 2018
Installation and Maintenance Manual
Section 4: Geared Rotary Limit Switch
Setting Instructions
4.1 Before making any switch setting:
1. Move valve to mid-position using handwheel.
2. Phase the power (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 geared limit switch and
torque switch, risking valve damage.
E2K-401-0918 Rev. 1
4.2 To set Open Limit Switch (LSO)
1. Open valve — During handwheel operation note direction of rotation of LSO
Adjusting Shaft (1) Fig. 7. After the valve is fully Open, Close it three handwheel
turns to allow for coast.
Figure 7
(1)
10
Geared Rotary Limit Switch Setting Instructions
Installation and Maintenance Manual
Fig.
E2K-401-0918 Rev. 1
2. Disengage spring loaded spur gear — Push Disengage Shaft (2) in Fig. 8 down, then
rotate 90° so that shaft is captured in down position. This disengages limit switch
gears from the spring loaded gear pinion assembly.
Figure 8
Section 4: Geared Rotary Limit Switch Setting Instructions
September 2018
(2)
3. Line up LSO indicator: If switch rotor does not line with arrows on instruction plate as
shown in g. 9, rotate screwdriver in same direction noted in Step 1 until switch just
rotates. If indicators line up as shown in g. 9a, rotate screwdriver in the opposite
direction until switch just rotates, then slowly reverse direction to match g. 9a.
Figure 9
9a
Re-engage spring loaded spur gear by turning Disengage Shaft (2) in Figure 8.
Disengage Shaft (2) will rise.
Geared Rotary Limit Switch Setting Instructions
11
Section 4: Geared Rotary Limit Switch Setting Instructions
September 2018
IMPORTANT:
To insure that spur gears have engaged properly, lightly jiggle all adjusting shafts (1) with
screwdriver back and forth; proper engagement has been made if all shafts will not turn. If
all shafts do not lock in place, the limit switch setting will be lost when valve is moved.
NOTE:
Since many turns may be required to set limit switches, it may be convenient to use a
reversible variable speed drill to rotate Adjusting Shaft (1) instead of screwdriver.
Limit Switch Gear Box is gear driven by the gear limit pinion assembly. The gear limit
pinion is driven by the actuator output worm and is always mechanucally in step with valve
position. N is the total number of turns of spring loaded gear limit pinion assembly for full
valve stroke.
Installation and Maintenance Manual
4.3 To set Close Lmit Switch (LSC)
E2K-401-0918 Rev. 1
1. Close valve, using handwheel. During handwheel operation note direction of LSC
adjusting shaft. After valve is fully Closed, Open it several handwheel turns to allow
for coasting.
2. Repeat steps 2 through 5 of LSO setting instructions with screwdriver in LSC cavity.
4.4 To set Intermediate Switch (LSA or LSB)
1. Open Valve to desired position, then repeat steps 2 through 5 of LSO.
4.5 Torque Seated Valves
If valve is a torque seating valve, and the geared limit contacts are used for pilot light
indication only, the LSC switch should be set several handwheel turns ahead of torque
switch contact action. This gives proper valve position Pilot Lamp indication in spite of
minor position variations which might occur due to torque seating.
12
Geared Rotary Limit Switch Setting Instructions
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Section 5: Torque Switch TSC and TSO Setting
September 2018
Section 5: Torque Switch TSC and TSO Setting
5.1 Description
Bettis Torque Switch senses mechanical over load in Close (TSC) or Open (TSO) direction.
Worm is supported with bi-directional disc spring stack. As worm and gear torque
increases, the worm moves axially against spring allowing Torque Limit Gear Assembly to
rotate Part No. 1050, Torque Switch.
Part Number 1050 has N.C. contact for (LSC) and (LSO). Part number 1050-1, in addition to
N.C. also provides a N.O. contact.
Figure 10
13Torque Switch TSC and TSO Setting
Section 5: Torque Switch TSC and TSO Setting
September 2018
5.2 Adjust with Screwdriver
The only tool required for torque adjustment is a screwdriver. To change setting:
push screwdriver down about 1/16" and rotate.
Figure 11
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
5.3 Approximate Torque Spring Chart
See Bettis supplied specication sheet for approximate torque spring settings.
Manufacturing tolerances affect the torque at a specic torque switch setting.
If exact torque curve is required; at an additional charge, Bettis will test and plot curve for
specic actuator.
5.4 Torque Switch Calibration
5.4.1 To set CLOSE Torque Switch (TSC)
a. Close valve using handwheel. Set valve to the desired torque. Observe
rotating dial for number that corresponds to desired Valve Close Torque.
b. Insert screwdriver in slot of TSC dial. Press down to disengage and turn
the arrow to the setting determined in a). Release at this point and it will
re-engage and remain set automatically.
c. Back the valve away from Close position and reseat by handwheel to verify
the trip point is at desired setting. The trip point of switch is distinctive as
it makes or breaks contact.
14
Torque Switch TSC and TSO Setting
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Section 5: Torque Switch TSC and TSO Setting
DANGER
Reverse voltage phasing removes torque switch protection from reversing contractor valve
damage could occur.
If phasing has not been checked, do so before proceeding. Back valve away from Close
position with handwheel and test electrically, using Close controls. Readjust as required.
5.4.2 To Set OPEN Torque Switch (TSO)
a. Follow the procedure as for the TSC in open position.
5.5 Switch Rotation Limit
Torque Switch adjustment rotation may be limited. Remove switch cover to expose antirotation pins at Open and Close positions. Remove pin from position 10 and insert into
desired number. Torque may be roughly estimated from Table on Bettis Spec Sheet or
determined by production or actual eld test.
September 2018
Figure 12
15Torque Switch TSC and TSO Setting
Section 6: MDPI and Potentiometer Gear Box P/N 1030
September 2018
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Section 6: MDPI and Potentiometer Gear Box
P/N 1030
6.1 Description
Mechanical Dial Position Indicator, MDPI, Part No. 1030 is a precision assembly of gears,
shafts, bearings and slip-clutch designed to drive Position Indication arrow and/or
Potentiometers. The MDPI is geared to actuator mechanism and is “in-step” with the valve
position at all times, whether operation is by motor or handwheel. MDPI is mounted to
the top of Limit Switches; this allows addition of potentiometer to valve actuators that
are determined later to require process control. Top mounting allows for moving valve
actuator from one valve to another.
Figure 13
6.2 N Number
N is the total number of Gear Limit Pinion turns for full valve travel.
Pinion is Part No. (17) on assembly drawings.
6.3 Calibration
MDPI & POT Drive is calibrated after LSC and LSO are properly set.
See Section 4 - Geared Rotary Limit Switch Setting Instructions.
16
MDPI and Potentiometer Gear Box P/N 1030
Installation and Maintenance Manual
P/N 4118
E2K-401-0918 Rev. 1
Section 6: MDPI and Potentiometer Gear Box P/N 1030
6.4 MDPI and POT
Move valve to Close position. Manually rotate MDPI arrow to indicate Close. Calibration is
complete. Open valve to check that MDPI arrow goes to Open, indicating that N is correct
for full valve travel. Potentiometer, if included, has also been calibrated. Mechanical dial
travel is 270°. Approximately 5% of total resistance is left on each end of Pot for total valve
travel. 10-Turn Pot is driven 8.89 turns; 5% resistance of element is left on each end of Pot
for total travel. This may be adjusted to a specic minimum resistance value at Open or
Close by using a screwdriver in slot on 10 turn pot.
6.5 Potentiometer Only
Potentiometer shaft is rotated by grasping ats of P/N 1031 slip-clutch and turning to
desired resistance. 1-turn Pot is rotated 270° by P/N 1030 gear box.
6.6 Gear System to Field Mount MDPI
1. Remove (3) P/N 7078 mounting screws holding P/N 4106 Instruction Plate to Limit
Switch Modules.
2. Using same (3) P/N 7078 screws, attach P/N 4118 MDPI Adapter to top of Limit
Switch Modules.
3. Insert MDPI Input Shaft, (P/N 9052-) making sure blade drops into slot.
Input Shaft is different length for combination of limit switches and gear boxes.
— 3 gear-2 switch uses P/N 9052-5 (0.8")
— 3 gear-4 switch uses P/N 9052-1 (1.8")
— 3 gear-5 switch uses P/N 9052-2 (2.3")
September 2018
Figure 14
P/N 9052-
P/N 7078
MDPI and Potentiometer Gear Box P/N 1030
17
9069
6040
Section 6: MDPI and Potentiometer Gear Box P/N 1030
September 2018
4. Install the 1030 assembly on top of the P/N 4118 plate, making sure that the P/N
9052- engages in the slot in bottom of the 1030 assembly.
5. Secure the P/N 1030 with the (3) P/N 7058 screws.
6.7 Part No. 1030 - CHANGE
Figure 15
7078
4118
4116
5024
D2
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
F3
9051
9050
D1
1031
4075
9049
C3
F1
9049
G
C1
9050
E3
E2
4138 4105
7053
7058
18
MDPI and Potentiometer Gear Box P/N 1030
Installation and Maintenance Manual
81
E2K-401-0918 Rev. 1
Section 7: Wiring Diagram
7.1 Symbols for MCP
Figure 16 Potentiometer
1K OHM
CLOSE
Pot. Slider is geared to Valve Position and “In-step” at all times.
Figure 17 Transformer
13 42
120V
12 V
230 or 460 Voltage: 460V: 2 to 3 l 230V: 1 to 3 & 2 to 4 Outputs: 120 & 12 VAC.
Section 7: Wiring Diargram Symbols for MCP
September 2018
Figure 18 Pilot Lamps
C
Actuated by position limit switches.
Figure 19 Position Limit Switch
LSO
LSC
717
8
Wiping action double break. LSC shown open. LSO shown made.
Figure 20 Fuse
5
Fuse trip in amps.
Figure 21 Torque Limit Switch
TSCTSO
N.C. Double Break Contact Opens when overload occurs.
Figure 22 Registor-Fixed
19Wiring Diagram Symbols for MCP
Section 7: Wiring Diargram Symbols for MCP
September 2018
Figure 23 Pushbuttons N.O.
CLOSE
5
7
Cs
6
Os
8
OPEN
Momentary N.O. Contact connects control voltage to reversing contactor coils.
Seal-in contacts Cs and Os on contactor allow actuator to go to extremes of travel without
continued holding down of button.
Figure 24 Pushbuttons N.C.
STOP
Momentary N.C. Contact
Figure 25 Terminal Points
X1
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Factory wired by Bettis
Figure 26 Circuit Plug & Receptacle
Figure 27 Space heater
SPACE
HEATER
Heater in Switch Compartment is standard
Figure 28 Phase Sentry
Contact made only when Power Voltage phase is proper to L1, L2, & L3. Damage to valve is
prevented if Voltage is improperly eld connected.
20
Wiring Diagram Symbols for MCP
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Figure 29 Reversing Contractor
INTE RLOCK
MECHANICAL
Showing Open and Close coils, Mechanical Interlock, and Electrical Interlock Contacts Oi & Ci.
Figure 30 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.
Figure 31 Non-Fused Disconnect
Section 7: Wiring Diargram Symbols for MCP
September 2018
Figure 32 Fused Disconnect
Figure 33 Circuit Breaker
P1
P2
P3
21Wiring Diagram Symbols for MCP
Section 7: Wiring Diargram Symbols for MCP
September 2018
Figure 34 Grounds
Earth Chassis
Figure 35 Overload Heater
Figure 36 Contact N.C.
Figure 37 Contact N.O.
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Figure 38 Selector Switch N.C. and N.O. Double Break
Off
Hand
Auto
Local
Remote
STOP
(NOTE 7)
Figure 39 Truth Table Selector Switch
Local OffRemote
22
Wiring Diagram Symbols for MCP
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Figure 40 3 Phase Motor
Figure 41 Single Phase Motor P, Q & R
Section 7: Wiring Diargram Symbols for MCP
September 2018
Figure 42 Single Phase Motor Multi-Turn & M/MGs
Motor Thermal Overload Protection Shown.
23Wiring Diagram Symbols for MCP
Section 8: Troubleshooting
September 2018
Section 8: Troubleshooting
Symptom Probable Cause Corrective Action
Blown Control Fuse
Motor will not Run
No Power available
to Actuator
Handwheel Hard to Turn
Valve only opens or closes
partially with motor
Torque switch is properly
set, but actuator
Torque’s out in mid-travel,
open or closed direction
Handwheel will not
operate valve
Motor runs but will not
operate the valve
Open in Control Circuit
Insulation Resistance
Breakdown in Motor
Tripped Circuit Breaker Reset Circuit Breaker
Valve Stem improperly
Lubricated
Actuator Lubrication has
broken down
Valve packing gland
too tight
Drive Sleeve Bearing Failure Replace Bearing
Jammed Valve Refer to Valve Maintenance
Torque Switch Setting
too low
Limit Switch Improperly Set
Damaged or bent valve stem Refer to Valve Maintenance
Valve packing too tight Refer to Valve Maintenance
Jammed Valve
(obstruction in line)
Handwheel shaft bearing
assembly malfunction
Sheared gear key or Stripped
Gearing
PS Shifter Position or
Malfunction
Broken Handwheel Shaft Repair or replace as necessary
Broken Valve Stem or
Stripped Stem Nut
Motor Bearing Assembly
Malfunction
Sheared gear key
(fastener pin)
Stripped Gearing Replace
Broken Valve Stem or
Stripped Stem Nut
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Check Fuse and Replace
as necessary
Refer to appropriate wiring
diagram and check
for continuity
Perform Megger Test
Lubricate with Grease
Clean out old grease and
replace with recommended
lubricant
Loosen packing gland nuts
as necessary
Check Setting and Reset
if necessary
Check Switch Actuation and
recalibrate if necessary
Refer to Valve Maintenance
Repair or replace as necessary
Replace as necessary
Replace Gear(s)
Repair or replace as necessary
Repair or replace as necessary
Replace
Repair or replace as necessary
24
Troubleshooting
Installation and Maintenance Manual
E2K-401-0918 Rev. 1
Section 8: Troubleshooting
September 2018
Moisture in Electrical
Enclosure
Gear (Oil) in Electrical
Enclosures
Leakage through Conduit
Entry
Electrical Enclosure is not
properly sealed
Space Heater Inoperable
Pressure Relief Fitting not
installed
Bad Seal on T/L or G/L
Assembly
Replace Packing (O-ring,
neoprene grommet, etc.)
as necessary
Inspect and replace O-ring
if necessary
Check Circuit continuity
for Heater
Install Pressure Relief Fitting
Replace Stat-O-Seals or O-Rings
Rotate Actuator Mounting
25Troubleshooting
World Area Confi guration Centers (WACC) offer sales support, service,
inventory and commissioning to our global customers.
Choose the WACC or sales offi ce nearest you:
NORTH & SOUTH AMERICA
19200 Northwest Freeway
Houston TX 77065
USA
T +1 281 477 4100
Av. Hollingsworth
325 Iporanga Sorocaba
SP 18087-105
Brazil
MIDDLE EAST & AFRICA
P. O. Box 17033
Jebel Ali Free Zone
Dubai
T +971 4 811 8100
P. O. Box 10305
Jubail 31961
Saudi Arabia
T +966 3 340 8650
T +55 15 3413 8888
24 Angus Crescent
ASIA PACIFIC
Longmeadow Business Estate East
P.O. Box 6908 Greenstone
No. 9 Gul Road
#01-02 Singapore 629361
T +65 6777 8211
No. 1 Lai Yuan Road
1616 Modderfontein Extension 5
South Africa
T +27 11 451 3700
EUROPE
Wuqing Development Area
Tianjin 301700
P. R. China
T +86 22 8212 3300
Holland Fasor 6
Székesfehérvár 8000
Hungary
T +36 22 53 09 50
Strada Biffi 165
29017 Fiorenzuola d’Arda (PC)
Italy
T +39 0523 944 411
For complete list of sales and manufacturing sites, please visit
www.emerson.com/actuationtechnologieslocations or contact us at
info.actuationtechnologies@emerson.com
www.emerson.com/bettis
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