TAC MPR-5613 User Guide

Page 1

Application

The MPR-5600 series and MPR-5700 series actuators are used for electronic proportional control of dampers and valves which require a return to the normal position upon power interruption. MPR-5600 series actuators are compatible with controllers generating 4 to 20 mA input signals, and MPR-5700 series actuators are compatible with 135 Ω slidewire controllers (Series 90).

Features

• Spring return

MPR-5600 Series MPR-5700 Series

Proportional Valve and Damper Actuators

General Instructions

MPR-561X Series

Valve Actuator

• 24 Vac, 120 Vac, and 240 Vac models are available

• Available in damper models or base models that require

damper or valve linkage

• Die cast lower housing with 1/2" conduit opening and

painted steel upper housing

• Hydraulic actuator with oil-immersed motor, transducer,

and pump

MPR-5600 Series

• Proportional actuators controlled by a variable mAdc

input signal

• Fixed 4 to 20 Adc operating range

• 82.5 Ω input impedance

• Adjustable actuator startpoint

MPR-5700 Series

• Proportional actuators controlled by a controller with a

135 Ω slidewire output

Applicable Literature

• TAC Environmental Controls Cross-Reference Guide,

F-23638

• TAC Environmental Controls Reference Manual,

F-21683

• TAC Environmental Controls Application Manual,

F-21335

• TAC Pneumatic Products Catalog, F-27383

MPR-5X3X Series

Damper Actuator

• AV-600 Hydraulic Actuator Valve Linkage Kit,

F-26279

• AV-601 Linkage Extension Set for AV-600 Valve

Linkage Kit, F-26280

• VB-7000 Valve Selection Guide, F-26094

• VB-7000 Cross Reference Guide, F-26175

• Material Safety Data Sheet MSDS-3 (Until Feb.

1989)

• Material Safety Data Sheet MSDS-12 (Currently)

Page 2

SPECIFICATIONS

Actuator In puts

Control Circuit:

MPR-561X and -563X Series, Two-wire.

MPR-571X and -573X Series, Three-wire. Input Impedance: 82.5 Ω for 4 to 20 mA input. Power Input: Refer to Table-1 and Table-2. Connections: Color- coded 4' (1.2 m) leads.

Actuator Outputs

Electrical:

Position Signals, Inter nal f eedback c ircui try pro vides posit ive pos iti oni ng of t he dam per

in relation to th e controller signal.

Startpoint Adjustment , Adjus tabl e potentiometer prov ides manual adjustment of the

actuator sta rtpoint.

Mechanical:

Stroke,

Damper Approximately 2" (51mm) from fully retracted to fully extended (includes

AM-601 linkage) .

Valve Approximately 9/16" (14.3 mm) from fully retracted to fully extended.

Nominal Damper Area, Actuator sizing should be done in accordance with damper

manufacturer’s specifications.

Output Torque Rating, The proportional output torque rating of 15 lb-in. (1.7 N-m) is

available throughout the entire stroke and is based on the lowest force available under

normal operati on, the spring return str oke, or at minimum (-10%) suppl y voltage.

Environment

Ambient Temperature Limi ts:

Shipping & Storage, -40 to 140° F (-40 to 60° C).

Operating,

Damper -20 to 140° F (-29 to 60° C).

Valve Refer to Table-3. Humidity: 5 to 95% RH, non-condensing. Location: NEMA Type 1, indo or onl y.

Agency Listings:

UL 873: Underwriters Laboratories (Fi le # E9429 Category Temperature-Indicati ng and

Regulating Equipment). CSA: Certified for use in Canada by Underwriters Laboratories. Canadian Standard C22.2 No. 24-93. European Community: EMC Directive (89/336/EEC). Low Voltage Directive (72/23/EEC).

Page 3

Table-1 Model Chart for Valve (Basic) Actuators.

Part Number

Actuator Power Input

Voltage

+10/

Hz VA Watts

-15%

Timing in Seconds

@ 72° F (22° C)

No Load Stroke Retract

Extend Retract

Power

Loss

Required Linkages

Valve

Applications

Damper

Applications

MPR-5610 120 MPR-5611 240 MPR-5613 24 MPR-5710 MPR-5711

120 Compatible

240

50/60 18 10 60 30 15

AV-600 AV-601

AM-601

MPR-5713 24

These MPR-5X1X series valve actuators are compatible with VB-7XXX 1/2" to 2" valve bodies.

The MPR-5X1X series actuators are basic models which may be equipped for damper applications with the installation of an AM-601 linkage.

May be required for steam and hot water. Refer to Table-3.

These actuators are obsolete. They are listed here for reference only.

Table-2 Model Chart for Damper Actuators.

Actuator Power Input Timing in Seconds @ 72° F (22° C)

Part Number

Voltage

+10/

-15%

Hz VA Watts

No Load Stroke

Extend Retract

Retract on

Power

Loss

Input

Signal

Compatible with 4 to 20 m A

with 135 ¾ Slidewire (Series 90)

Input

Signal

MPR-5630 120

Compatible

with

MPR-5633 24 MPR-5730

MPR-5733

120 Compatible

50 60 18 10 60 30 15

4 to 20 mA

135 ¾

Slidewire

(Series 90)

Damper models (MPR-5X3X) are provided with factory-installed damper linkages. Only base models (MPR-5X1X) require separately-ordered linkages.

These actuators are obsolete. They are listed here for reference only.

Table-3 Restriction s on Maxim um Ambie nt Temperature for Valve Actuators.

Maximum Temperature of Media

in the Valve Body

(Check Rating of the Valve)

°F (°C)

366 (186) 340 (171) 93 (34) 281 (138) 103 (39)

181 (83) 120 (48)

80 (26) 140 (60)

Maximum ambient temperature of the actuator must never exceed 140° F (60° C).

Minimum allowable ambient temperature of the actuators is -20° F (-29° C).

Maximum Ambient Temperature

of MPR-563X and -573X Series

AV-600 (Only)

°F (°C)

Do Not Use

AV-600 and AV-601

°F (°C)

88 (31)

140 (60)

with

a a a

Page 4

ACCESSORIES Common

11-1612 1/2" conduit bushing

Damper Linkages

AM-111 Crank arm for 5/16" diameter damper shaft AM-112 Crank a rm for 3/8" diameter damper shaft AM-113 Crank a rm for 1/2" diameter damper shaft AM-115 Crank arm for 7/16" diameter damper shaft AM-122 Linkage connector straight type AM-123 Damper clip AM-125 5/16" di am et er x 20 " da mp er rod AM-125-048 5/16" di am et er x 48 " da mp er rod AM-132 Ball joint con ne ct or AM-161-3 Damper linkage kit AM-601 Device includes mounting bracket, damper linkage with spring, and AM-122

straight conn ector. Required to modify (MPR-5X 1X series) valve actuato rs into 2"

AM-602 Spacer

Valve Linkages and Valves

AV-600 Valve linkage 1/2" to 1-1/4" (obsolete VB-9XXX) AV-60 1 Valve linkage extension for hot water and steam applications; use wi th AV-600 &

AV-7600 Valve s linkage 1/2" to 2" to be used with VB-7XXX VB-7XXX 1/2" to 2" valve bodies VB-9XXX 1/2" to 1-1/4" valve bodies (obs olete)

TOOLS

TOOL-19 Spring compression tool for AV-600 TOOL-37 1-5/8" open-ended wrench TOOL-209 135 Ω and 0 to 7 mA manual positioner

(factory-available)

(51 mm) stroke damper actuators.

AV-7600

TYPICAL APPLICATIONS (wiring diagrams)

Controller

135 Ω Slidewire

Temp.

Drop

Sequence of operation: As the temperature decreases at the controller, R moves toward B and the actuator shaft extends. On power loss to the actuator, the shaft retracts.

Notes:

1. The 135Ω controller is supplied by others.

2. The con troller has setpoint and throttling range (proportional band) adjustments.

Figure-1 Wiring Diagram - Decrease in Temperature Cause s Actuator Shaft to Extend.

Controller

135 Ω Slidewire

Temp.

Drop

R B

24Vac Black/Blue

120Vac White

240Vac White/Black

Yellow/White

Red

Blue

24Vac Black/Blue

120Vac White

240Vac White/Black

Blue

Red

Yellow/White

To AC Power

Source

Black

Green

MPR-571X or MPR-573X

To AC Power

Source

Black

Green

MPR-571X or MPR-573X

Sequence of operation: As the temperature decreases at the controller, R moves toward B and the actuator shaft retracts. On power loss to the actuator, the shaft retracts.

Notes:

1. The 135 Ω controller is sup plied by others.

2. The controller has setpoint and throttling range (proportional band) adjustments.

Page 5

Figure-2 Wiring Diagram - Decrease in Temperature Cause s Actuator Shaft to Retract.

Actuator startpoint adjuster

is located behind the plug

button on the base

To AC Power

Source

Black

24Vac Black/Blue

120Vac White

240Vac White/Black

Yellow/White

Red

Controller

4 to 20 mAdc

Output Signal

Notes:

MPR-561X or MPR-563X

1. The 4 to 20 mAdc controller is supplied by others.

2. The controller has setpoint and throttling range (proportional band) adjustments. The controller may also incorporate I (integral) and D (differential) functions.

3. To expose th e st art p oint ad ju ster , remo ve the pl ug bu tto n f rom t he bas e of t he actu at or by pr yi ng it of f wit h a screwd riv er . Wi th a 4 mA cont rol le r in put sign al pr esen t , u se a s mall , si ng l e-sl ot ted scr e wdriv er t o adju st the actuator startpoint potentiometer so that the actuator shaft just begins to extend.

4. The output can be either direct-acting or reverse-acting: Direct-Acting (DA) Output: An increase in the measured media causes the controller output (4 to 20 mA signal) to increase. Reverse-Acting (RA) Output: An increase in the measured media causes the controller output (4 to 20 mA signal) to decrease.

Sequence Of Operation:

An increase in the 4 to 20 mAdc sign al causes the MPR-561X or MPR-563X actuator shaft to extend. On power loss to the actuator, the shaft retracts.

Figure-3 Wiring Diag ram - 4 to 20 mAdc Controllers.

Green

INSTALLATION Inspection Inspect the pack age for damage. If damaged, notify the appropriate carrier immediately.

If undamaged, open the package and inspect the device for obvious damage. Return damaged products.

Requirements • Job wiring diagrams

• Tools (not provided):

– D igital Volt-ohm Me ter (DVM) – Appr opriate drill and drill bit for mou nti ng screws – TOOL-19, Spring compression tool for AV-600 – TOOL-37, 1-5/8" open-ended wrenc h – TOOL-209, 135 – Two 3/8 " wrenches

• Training: Installer must be a qualified, experienced technician

Ω and 0 to 7 mA manual positioner

Warning:

equipment damage .

Disconnect power supply before installation to prevent electrical shock and

Caution:

• Use electrostati c discharge precauti ons (e.g., use of wrist straps) during installatio n and

wiring to prevent equ ipment damage.

• Make all connections in accordance with the wiring diagram and in accordance with

national and local electrical codes.

Use copper conductors only.

• Do not exceed the ratings of the device(s).

• Do not apply power to the unit unless the damper linkage and/or the valve assembly

have been installed.

• Avoid locations where excessive moisture, corrosive fumes, or vi bration is present.

• Do not install insu lation on any part of the actuator.

Page 6

Mounting

Caution:

turn the base by hand or, if necessary, use a 1-5/8" open-ended wrench (TOOL -37) on the flats provided on the actuator base or the valve body mounting nut. Refer to Figure-4 .

Do not twist or exert any force on the actuator housing during installati on. Either

Housing

Base

Wrench Flats

Figure-4 Housing and Base Location.

Dampers

The actuator i s not posi tion se nsitive. It can be mounte d in any posi tion i n an NEMA Type 1 location.

Valves

Allow 3" (76 mm) of clearance above the actuator val ve assembly for the removal and reattachment of the actuator to the installed valve.

1. Install all two-way valves so that they close against the flow. An arrow on the valve body or tag indicates proper flow direction.

2. Always install three-way mixing valves with two inlets and one outlet.

3. Always install three-way diverting valves with one inlet and two outlets.

4. Fo r steam applications only, mo unt the actuator above the valve body at 45° from vertical.

5. Ac tuators can be mounted in any upright position above the centerline of the valve body.

Wiring Requirements Contr ol Leads

The control leads may be connected to a Class 2 circuit if routed separately from Class 1 circuit wiring. Refer to Figure-9 .

Caution:

• Use either 18 gage, two- or three-conductor twisted, shielded wire when it becomes

necessary t o instal l the control le ads in t he same c onduit wi th power wiring or wh en high RFI/EMI generating devices are near.

• Do not connect the shield to earth ground or any other leads.

135 Ω Slidewire Controller: Use 18 gage, three-conductor, twisted leads (TAC Part Number W-103 or equivalent) for runs of up to 500 ft. (152 m) between the 135 Ω slidewire controller and the actuator. Use larger-gage wires for longer runs.

4 to 20 mAdc Controller: Use 18 gage, two-conductor , twisted leads (TAC Part Number W-102 or equivalent) for runs of up to 500 ft. (152 m) between the 4 to 20 mAdc controller and the actuator . Use la rger-gage wires for longer runs.

Power Leads

The low voltage (24 Vac) actuators may be connected to a Class 2 ci rcuit. Line volt age (12 0 Vac an d 240 Vac ) power l eads m ust b e c onnected to a Cl ass 1 cir cuit and

routed separately from Class 2 circuit wiring. Refer to Figure-9 .

Page 7

Refer to Table-4 for the maximum length of run for the power leads, for the given wire size(s). To determine the allowable maximum power lead run when wiring multiple actuators, divi de the maxi mum ru n shown in Tabl e-4 by t he nu mber of ac tua tors on the run . Refer to Figure-5 for further det ails.

Table-4 Power Wiring Data.

Actuator

Voltage

Vac

120

240

*Green grounding wire is provided. Length is 4 ft. (1.2 m).

Actuator Model

Number

MPR-5613 MPR-5713 MPR-5633 MPR-5733 MPR-5610 MPR-5710 MPR-5630 MPR-5730 MPR-5611 MPR-5711

Power Lead Colors* Wire Size GA

Black/Blue & Black

White & Black 14 3,500 (1,067)

White/Black & Black 14 6,00 0 (1,829)

14 300 (91.5)

12 480 (146.3)

Max. Two-Wire Run ft.

(m)

To AC Power

Source

24Vac Black/Blue

120Vac White

Controller

240Vac White/Black

Yellow/White

Red

Blue

Yellow/White

Red

Blue

To Additional MPR-56XX and

MPR-57XX Series Actuators

Black

Green

MPR-56XX or MPR-57XX

Figure-5 Wiring of Multiple MPR-56XX and MPR-57XX Series Actuators to a Single Power Source.

Wiring Connections General

Make connections as required. Refer to the following sections:

• Wire Lead Connectio ns (No Conduit)

• Install 3/8" reduced (thin wall) flexible conduit onto either side of actuator

• Install 3/8" reduced (thin wall) flexible conduit directly onto actuator

• Install conduit box onto actuator

Page 8

Wire Lead Connections (No Conduit)

Make connections as required. Refer to Figure-1 through Figure-3 to determine your particular application. Refer to Table-5 to determine the damper position versus the input signal. Refer to Fi gure-6 for a view of the actuator.

Note:

The cover plate and scr ew supplied with the actuator are not required with this

method.

Table-5 Damper Position Versus Input Signal.

Figure-6 Connection of Wire Leads (No Conduit).

Damper Normal

Position

Normally

Open

Normally

Closed

Decrease

In "R" to "B"

Resistance

Closes

Damper

Opens

Damper

135 Ω Slidewire (Series 90) Input Signal

Figure-1 Figure-2 Figure-3

MPR-573X Series

Decrease

In "R" to "W"

Resistance

Opens

Damper

Closes

Damper

Decrease

In "R" to "B"

Resistance

Opens

Damper

Closes

Damper

Decrease

In "R" to "W"

Resistance

Closes

Damper

Opens

Damper

MPR-563X Series

4 to 20 mA Input Signal

Decrease

In mA Signal

Opens

Damper

Closes

Damper

Increase

In mA Sign al

Closes

Damper

Opens

Damper

Installing 3/8" Reduced (thin) Wall Flexible Conduit onto One or Both Sides of Actuato r

Flexible cond uit may be installed onto one or bot h sides of the actuator (ref er t o Figure-8 and Figure-9 ). Inst all each conduit as follows:

1. Determine the side of the actuator to which the flexible conduit is to be attached.

2. Remove the knockout, using channel lock pliers, on the sel ected side of the actuator. Refer to Figure-7 .

3. Make the required connections. Refer to Figure-1 , Figure-2 , and Figure-3 to determine your particular applica tion. Refer to Table -5 to determine the damper position versus the input signal.

Base

Knockout

Figure-7 Removal of Knockout on Actuator Base.

4. Slip the conduit onto the base, over the ri bs. Refer to Figure-8 and Figure-9 .

Page 9

Base

Cover Plate

Ribs

Figure-8 Flexible Conduit Installation to Either Side of Actuator.

Line voltage motor leads when connected to circuits other than Class 2.

Cover Plate

The low voltage control leads may be connected to a Class 2 circuit if routed separately from the line voltage circuit wiring.

Leave Knockout in place

Note: Class 2 circuit wiring must be routed separately from the wiring from other circuits. Do not route Class 2 circuit wiring in the same conduit box with the line voltage transformer

Typical for 24 Vac models

(MPR-56X3 and MPR-57X3)

4 x 4

Conduit

Box

Transformer

(AM-610 shown)

Figure-9 MPR-5600 and MPR-5700 Series Wiring with Separation for

Class 2 and Line Voltage Circuits.

5. Install the cover plate with two screws. The cover plate and two screws are supplied with the actuator.

6. If flexible conduit is to be insta ll ed on both sides of the actuator, repeat the preceding steps to insta ll the second conduit.

Installing 3/8" Reduced (thin) Wall Flexible Conduit Directly onto Actuator

1. Remove the knockout from the cover plate supplied with the actuator. Refer to Figure10 .

Cover Plate

Knockout

Figure-10 Cover Plate Knockout Removal.

Page 10

2. Slip the leads through a standard 1/ 2" condu it bushi ng (not suppli ed) and the knocko ut hole in the cover plat e. Refer to Figure-11 and Figure-12 .

1/2" Conduit Bushing

(not supplied)

Base

Cover Plate

Figure-11 Conduit Bushing and Cover Plate Installation.

1/8" maximum

Use TAC 11-1612, Bridgeport 1102-DC, or equivalent

Figure-12 1/2" Conduit Bushing.

3. Nest the conduit bushing in the base.

4. Install the cover plate, using the two screws provided.

5. Make the required connectio ns. Refer t o Figure-1 through Figur e-3 to determine yo ur particular application. Refer to Table-5 to determine the damper position versus the input signal.

6. Attach the flexible conduit to the conduit bushing, as required.

Installing Conduit Box onto Actuator

1. Remove the knockout from the cover plate supplied with the actuator. Refer to Figure10 .

2. Slip the leads through a standard 1/ 2" condu it bushi ng (not suppli ed) and the knocko ut hole in the cover plat e. Refer to Figure-11 and Figure-12 .

3. Nest the conduit bushing in the base.

4. Install the cover plate, using the two screws provided.

5. Attach the conduit box to the threaded adaptor.

6. Make the required connectio ns. Refer t o Figure-1 through Figur e-3 to determine yo ur particular application. Refer to Table-5 to determine the damper position versus the input signal.

7. Install the rigid condu it, the f lexib le cond uit, etc. to the c onduit box as req uired. Refer t o Figure-13 .

Page 11

Note:

As shown in Figure- 11 , the hole in the cov er plat e of the ac tua tor condu it hous ing is sized to a ccept both Brit ish st and ard M20 ( 20mm) conduit con nect ors an d 20 mm-to-PG16 adaptors for use with DIN PG16 connectors. (Follow the s teps for install ing the conduit box to the actuator.)

Linkage Assembly Damper

Note:

Each actuator in the MPR-5X3X series is provided with a factory-installed damp er linkage. No separately-ordered linkage is required.

Caution:

• Do not twist or exert any force on the actuator housing during installation. Either turn

the base by hand or, if necessar y, use a 1-5/8" open-ended wrench (TOOL-37) on the flats provided on the actuator base, or on the val ve body mounting nut. (Refer to Figure-4 )

Conduit Lock Nut

Figure-13 Attachment of Conduit Box to Thr eaded Adaptor.

1. Determine the best mounting position for the actuator as follows: a. Determine, from the system requir ements, if the damp er should spring- return to the

open position (Figure-14 ) or closed position (Figure-15 ) whenever power is lost to the actuat or. An actuator is normally linked so as to retract (spring-return) to the damper’s fully open position (heat position).

Spring returns open

on loss of power

Open

ExtendRetract

Damper Shaft

Figure-14 Dampers Open When Actuator Retracts

(Spring-Returns Open on Power Loss).

Page 12

Spring returns open

on loss of power

Retract Extend

Open

Damper Shaft

Figure-15 Dampers Open When Actuator Extends

(Spring-Returns Closed on Power Loss).

b. Be sure to allow adequat e working space around the actuator mounting location to

mount the actuator, li nk it to the damper, and wire it into the system (refer to Figure-21 ).

c. If possible, select a mounting position such that, at mid-stroke, the actuator crank

arm and the damper crank arm on the drive shaft are each at a 90° angle to th e damper rod (refer to Figur e-16 ). This is the recommended mounti ng position. It may be necessary to swivel the actuator linkage to arrive at this mounting location.

Mid-Stroke Position

Mounting

Points

Actuator

Crank Arm

Angle from Mid-Stroke Position (See Table)

Mounting

Points

Damper

Rod

Linkage

Connectors

Damper

Crank Arm

Damper

Shaft

Required

Damper

Rotation

Position of Linkage Connector (See Table)

Angle

from

Mid-Stroke

Position

60° 90°

30° 45°

Position of

Linkage

Connector

2" (50 mm)

1-1/2" (38 mm)

Figure-16 Recommended Actuator/Damper Mounting.

d. Consider the damper rod length when positio ning the actuator in relation to the

damper. A damper rod that is too l ong is not rigid enough to provide good control, while a damper rod that is too sh ort mak es adjustment difficul t.

2. Position the actuator on the duct and mark the location of the mounting holes, usi ng the actuator mounti ng bracket as a template (refer to Figure-21 ).

3. Drill or punch the mounting holes in the duct for the appropriate 1/4" diameter screws or bolts. The actuator must be mounted firmly enough to prevent excessive actuator movement under nor mal damper l oading. If ther e is exces sive act uator movem ent, the damper may not fully open or close.

4. Mount a ball joint connector in the slot on the damper crank arm. To achieve 9 0° of damper rotatio n, position the connector 1-1/2" (38 mm) from the centerline of the shaft hole on the crank arm. For 60° of damper rotation, positio n the connector 2" (50 mm) from the shaft hole centerline. Typical ly, 60° to 70° of rotation (maximum is 90°) is sufficient to permit almost maximum air flow t hrough the damper s. Refer to Figure-16 .

Page 13

5. Rotate the damper to its open position. Install and secure the damper crank arm (with ball joint connector) to the damper shaft, positioning the crank arm as follows (refer to Figure-16 ):

a. To achieve 60° of damper rotation, position the crank arm so that it is pointed

towards the actuator at 30° from its mid-stroke position.

b. To achieve 90° of damper rotation, position the crank arm so that it is pointed

towards the actuator at 45° from its mid-stroke position.

6. Install the damper rod by sliding one end through the ball joint conn ector mounted on the damper crank ar m, and the othe r end through t he straigh t connector on the actuat or crank arm. Tighten the nut on the actuator crank arm’s straight connector. Cut off any excess length of damper rod.

7. For normally open dampers, tighten the nut on the ball joint connector on the damper crank arm. To ensur e that the damper cl oses complet ely, make adjustments so that the actuator is 1/16" (1.6 m m) from the extended end of stroke when the damper closes. Verify and, if necessary, make final adjustments during system checkout.

8. For normally closed dam pers, rotate the dam per crank arm until the damper is closed. While holding the damper closed, tighten the nut on the ball joint connector on the damper crank arm. To ensur e that the d amper closes c ompletely, make adjust ments so that the actuator is 1/16" (1.6 mm) from the retracted end of stroke when the damper closes.

Final adjustment of the actuator and damper must be performed when the system is powered and functioning. Refer to the CHECKOUT section to ensure that the damper is linked correctly.

Valve

For valve assembly details refer to AV-600 Hydraulic Actuat or Valve Linkage Kit, F26279 or AV-601 Linkage Extension Set for AV- 600 Valve Linkage Ki t, F-26280. Refer to

Figure-22 for external dimensions of the valve actuator.

CHECKOUT

Positioning with Controller

Go, No-Go Test (MPR-57XX Series Only)

Manual Positioning (MPR-57XX Series Only)

After the entire system has been installed and the actuator has been powere d up, per form the following checks for proper system oper ation.

Caution:

If the sensed media is within the controller’s se tpoint range, the actuator can be posit ioned by adjusti ng the cont roller setpoi nt up and down. Check f or correc t oper ation of th e ac tuator (valve or damper) while the actuator is being stroked.

1. Apply power to the actuator.

2. Disconnect the actuator’s control leads from the contr oll er.

3. Make the actuator shaft extend fully by shorting the red lead to the bl ue lead.

4. Make the actuator shaft retract fully by shorting the re d lead to the yellow/white lead.

5. Check for proper operation of the valv e or damper as the actuator is operat ed.

6. Reconnect the actuator wires to the controller.

7. Remove power from the actuator.

1. Apply power to the actuator.

2. Disconnect the actuator’s control leads from the contr oll er.

3. Attach the slidewire l eads fr om t he cali brat ion box (TOOL- 209) t o the s ame-c olor l eads

4. Manually position the actuator by turning the knob of the calibration box (TOOL-209).

5. Check for proper operation of the valv e or damper as the actuator is operat ed.

Never power the actuator without a spring return linkage attached.

on the actuator.

Turning the knob in the cl ockwise dire ction retract s the actuator shaf t. Turning the knob in the counterc lockwise direction ext ends the actuator shaft.

Page 14

THEORY OF OPERATION

6. Reconnect the actuator wires to the controller.

7. Remove power from the actuator.

Refer to Figure-17 . The permanently sealed, oil-filled case contains a movable hydraulic piston assembly and an electric pump/motor for the hydraulic system. The electric pump/motor is powered by t he in put supply voltage and runs con tinuously , generat ing a flui d pressure whi ch is transm it ted to the t op o f the pist on. Thi s fl uid pr essu re cre ate s a hydr aul ic force which drives the piston downward. Opposing the hydraulic force is the spr ing of the valve or damper linka ge. When the hydraul ic for ce becom es great eno ugh to overc ome the opposing spri ng force, the piston transl ates downward, extending the output shaft.

The pump/motor contai ns a transformer winding whi ch provides power to the Vdc power supply. The power supply, in turn, provides power to the transducer assem bly. To proportionally position the shaft, first the control signal (135 Ω slidewire or the 4 to 20mA) input is compared to the shaft position feedback signal, through the actuator controller circuit. Then , the actuat or controll er circuit emi ts an output signal whi ch positions t he flapper in the transduc er. The flappe r opens or closes further to decr ease o r increase th e hydr aulic pressure above the piston, resulting in an upward or downward movement at the shaf t.

Oil-Filled Case

Transducer

Assembly

Electric

Motor/Pump

Controller Printed

Circuit Board

Hydraulic Piston

Assembly

Yellow/White

Figure-17 MPR-56XX and MPR-57XX Series Actuators.

Red

Blue

Vdc Power

Supply

To AC Power

Source

Feedback

Controller

Input

REPLACEMENT PARTS

The installati on of repl acement act uators , in place of the obsolete ser ies of MPR-56 XX and MPR-57XX actuators (refer to Figure-18 ), may require additional it ems. These replace ment items are required f or the following reasons:

1. The AM-601 damper linkage is used to convert base actuators to damper actuators when damper models are not available.

2. The AM-602 spacer is used wh en current actuato rs are installed on old linkages (refer to Figure-19 and Figure-20 ).

3. The AE-249 transformer (208 Vac to 120 Vac) is used when replacing 208 Vac actuators (MPR-5XX2) with 120 Vac actuators (MPR-5XX0).

Page 15

3/4"

(19 mm)

MPR-561X and MPR-571X MPR-561X-2 and MPR-571X-2 MPR-561X-3 and MPR-571X-3

Obsolete Actuators

1-5/16"

(33 mm)

1-5/16"

(33 mm)

Current Actuator

Figure-18 Current and Obsol ete Actuators

2-3/16"

(56mm approx.)

Current Linkage

AV-600

Spacer

AM-602

1-5/8"

(41mm approx.)

1-5/8"

(41mm approx.)

Obsolete Linkages

AV-315, AV-317, AV-319-10,

& AV-319-20

MAINTENANCE

TROUBLESHOOTING

Figure-19 Spacer and Curre nt and Obsolete Valve Linkages.

No Strap

Strap

Obsolete AM-601

Current AM-601-0-0-2

Figure-20 Current and Obsol ete Damper Linkages.

The actuator is sealed in oil and requires no maintenance. Regular maintenance of the total system is recomm ended to assure sustained, optimum

performance.

Use the following steps to locate malfuncti ons:

1. Check the controller and determine that it is operating to the manufacturer’s specifications.

2. The actuator motor should run continually. If it does not run, check the supply voltage and the actuator wiring.

Page 16

FIELD REPAIR

DIMENSIONAL DATA

3. Verify actuator operation, using the Go, No-Go Test. If the actua tor does not function, replace it with a functi onal unit.

None. Replace an inoperative actuator with a functi onal unit.

4-1/4"

(108 mm)

5/16"

(8 mm)

3-1/4"

(83 mm)

(117 mm)

Actuator

(146 mm)

4-5/8"

5-3/4"

(203 mm)

(4) 1/4" (6 mm)

(50 mm)

Figure-21 Damper Linkage Assembly Dimensions.

3-1/4" Dia.

(83 mm)

6-3/4"

(171 mm)

4-3/4"

(120 mm)

4-1/4"

(110 mm)

5-1/2"

(140 mm)

3-23/32" (94 mm)

F-23576-6

2-9/32"

(58 mm)

Figure-22 Actuator Dimensions.

TAC

1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940

www.tac.com

1-3/8"

(35 mm)