KMC Controls MEP-7 Series Guía del usuario

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 1 Applications Guide, AN1113A Rev. D

Applications Guide

MEP-7xxx

Direct-Coupled Actuators (up to 320 in-lb.)

Contents

Important Notices........................................................................................................................... 2

Introduction.................................................................................................................................... 2

Torque Requirements for Dampers ................................................................................................. 2

Models............................................................................................................................................ 3

Accessories ..................................................................................................................................... 4

Auxiliary Switches and End Stops ................................................................................................ 4

Transformers................................................................................................................................ 4

Enclosure, Cord Grip, and Wiring Kits......................................................................................... 4

Thermostat .................................................................................................................................. 4

Mounting Brackets and Crank Arm Kit......................................................................................... 5

Master/Slave Wiring........................................................................................................................ 6

All Master/Slave Combinations.................................................................................................... 6

MEP-7802/7852 Proportional Actuators...................................................................................... 6

MEP-7801/7803 Tri-State Actuators............................................................................................. 7

MEP-7851/7853 Tri-State with Fail-Safe Actuators....................................................................... 7

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 2 Applications Guide, AN1113A Rev. D

Speciﬁcations, design, and operation are subject to change without notice.

Conﬁguration.................................................................................................................................. 8

Troubleshooting .............................................................................................................................. 8

Auxiliary Switch Does Not Work ................................................................................................. 8

Fail-Safe Does Not Work.............................................................................................................. 8

Feedback Does Not Work ............................................................................................................ 8

No Rotation................................................................................................................................. 8

Rotation in Wrong Direction ....................................................................................................... 9

Stroke Range Is Wrong ................................................................................................................ 9

Wiring Issues ............................................................................................................................... 9

Index............................................................................................................................................... 9

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 3 Applications Guide, AN1113A Rev. D

Torque Requirements for Dampers

Introduction

This application guide gives torque selection, ac-

cessory, master/slave wiring, troubleshooting, and

other related information.

For help choosing the best model for an application,

see Models on page 4 and also the KMC Actua-

tors Selection Guide.

For specications and other information, see the

MEP-7500/7800 Series Data Sheet.

For general mounting, connections, and congura-

tion, see the MEP-7200/7500/7800 Series Installation

Guide.

For possible proportional heating/cooling applica-

tions using the CTE-5202 electronic thermostat, see

the CTE-5202 Applications Guide.

For valve applications, see information on:

• VEB-53 Series Two-Way, Flanged Ball Valves (4

to 6")

• VEB-56 Series Three-Way, Flanged Ball Valves

(4 to 6")

• VEF-53 Series Two-Way, Rubber-Lined, Buer-

y Valves (2 to 6")

• VEF-56 Series Three-Way, Rubber-Lined, But-

tery Valves (2 to 6")

The latest support les are always available on the

KMC Controls web site (www.kmccontrols.com).

Important Notices

The KMC logo is a registered trademark of KMC

publication may be reproduced, transmied, tran-

scribed, stored in a retrieval system, or translated

into any language in any form by any means with-

out the wrien permission of KMC Controls, Inc.

The material in this document is for information

purposes only. The contents and the product it de-

scribes are subject to change without notice. KMC

Controls, Inc. makes no representations or warran-

ties with respect to this document. In no event shall

KMC Controls, Inc. be liable for any damages, direct

or incidental, arising out of or related to the use of

this document.

Damper manufacturers should provide information

about the required minimum actuator torque. If

that information is not available, use the following

Damper Type

Opposed Blades Without Seals

Parallel Blades Without Seals

Opposed Blades With Seals

Parallel Blades With Seals

Up to 1000 FPM

3 in-lb. per square foot

4 in-lb. per square foot

5 in-lb. per square foot

7 in-lb. per square foot

1000 to 2500 FPM

4.5 in-lb. per square foot

6 in-lb. per square foot

7.5 in-lb. per square foot

10.5 in-lb. per square foot

2500 to 3000 FPM

6 in-lb. per square foot

8 in-lb. per square foot

10 in-lb. per square foot

14 in-lb. per square foot

general guidelines to calculate the required mini-

mum torque.

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 4 Applications Guide, AN1113A Rev. D

Models

Powered Timing (Full Rotation)

MEP-72xx 75–90 seconds,

load dependent

MEP-75xx 90–115 sec., load

dependent

Fail-Safe Timing (Full Rotation)

MEP-725x 65–100 sec., load

dependent

MEP-755x 80–115 sec., load

dependent

*NOTE: The MEP-7200 series (120 in-lb.) has been

discontinued. Use an MEP-75xx (180

in-lb.)—or, if less torque is required, an

MEP-48xx (80 in-lb., non-fail-safe) or MEP-

49xx (90 in-lb., fail-safe) instead. Besides

maximum torque, the dierences between

the MEP-7200 and MEP-7500 series include:

Model #

Torque Control Built-in Options

180 in-lb.

(20 N•m)

min.

320 in-lb.

(36 N•m)

min.

Tri-state

(Floating)

0–10 VDC, 2–10

VDC, or 4–20 mA

Proportional

Feedback:

10K ohm

Potentiometer

Feedback:

0/1–5 or

0/2–10 VDC

Fail Safe

MEP-7x01

7500 series

(x=5)

7800 series

(x=8)

MEP-7x02 4 4

MEP-7x03 4 4

MEP-7x51 44

MEP-7x52 4 4 4

MEP-7x53 4 4 4

The MEP-72xx series (120 in-lb.) has been discontinued. Use the MEP-75xx series (180 in-lb.)—or, if less torque is required, an MEP-48xx (80

in-lb., non-fail-safe) or MEP-49xx (90 in-lb., fail-safe) instead.

To replace the MEP-70xx series (150 in-lb.), use MEP-75xx series (180 in-lb.).

To replace the MEP-77xx series (300 in-lb.), use MEP-78xx series (320 in-lb.).

NOTE: See also the KMC Actuators Selection

Guide.

NOTE: Before Jan. 2014, MEP-7xx2 proportional

models had (besides the 4-20 mA input)

a 0–10 VDC input and 0–5 or 0–10 VDC

feedback. From 2014 through July 2015,

they had a 2–10 VDC input and 1–5 or 2–10

VDC feedback instead. Starting in August

2015, all these options were available and

selectable via a jumper and slide switch.

NOTE: When the 0–10 VDC input is selected (with

the jumper), selectable (with a switch)

feedback options are 0–5 or 0–10 VDC.

When the 2–10 VDC input is selected,

feedback options are 1–5 or 2–10 VDC.

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 5 Applications Guide, AN1113A Rev. D

The HMO-4536 adjust-

able end stop kit allows

rotation to be blocked at

a desired angle in one or

both directions.

CME-7001/7002 rotary

switches (SPDT or dual

SPDT) are designed to

start and stop auxiliary

items (such as electric heat

or fans) or to indicate an

actuator’s fully open or

closed position. Switches

are independently adjust-

able for a trip point any-

where within the angular

rotation of the driving

actuator.

Accessories

The HCO-1152 enclosure

kit, consisting of a metal

mounting plate, plastic

cover, non-rotation brack-

et, plug caps, and screws,

is designed to protect

actuators from inclement

conditions. See also the

HMO-4521 cord grip.

For sample proportional

heating/cooling applica-

tions using the CTE-5202

electronic thermostat, see

the CTE-5202 Applica-

tions Guide.

An HMO-4521 liquid-tight

cord grip threads into con-

duit ings on MEP-7xxx

actuators when an ingress

protection rating of IP54 is

required. The HMO-4521

accepts 0.18 to 0.40" diam-

eter cables. See also the

HCO-1152 and HPO-7001.

Thermostat

Auxiliary Switches and End Stops

Transformers

Enclosure, Cord Grip, and Wiring Kits

An HPO-7001 assembled wiring kit has an HMO-

4521 liquid-tight cord grip, a 3-foot plenum-rated

cable, conduit ing, and a pre-wired terminal block

for the MEP-75xx/78xx actuators:

An XEE-6000 series Class-2 transformer provides 24

VAC power to the actuator:

XEE-6111-050 120 to 24 VAC, 50 VA, single-hub

XEE-6112-050 120 to 24 VAC 50 VA, dual-hub

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 6 Applications Guide, AN1113A Rev. D

The HLO-1020 crank arm kit is used when direct

mounting of the actuator is impractical.

One HMO-4535 non-rotation bracket is provided

with each actuator. It can span an open distance, or

be formed (bent) into a shape that increases the dis-

tance between the mounting surface and the actua-

tor.

Mounting Brackets and Crank Arm Kit

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 7 Applications Guide, AN1113A Rev. D

Master/Slave Wiring

All Master/Slave Combinations

1. Follow the instructions in the Wiring (General)

section of the MEP-7200/7500/7800 Series

Installation Guide and also include the following

steps.

2. Connect the actuators according to the relevant

illustration below.

4. Check that the wiring is properly phased (“~”

to “~” and “ ” to “ ”). In tri-state actuators, CW

and CWW are connected to like terminals for

“stacked-mounted” applications and opposite

terminals for “opposite-mounted” applications.

2. On applicable models, set the Master and the

Slave’s CW/CCW switches according to the

relevant illustration and chart.

3. On applicable models, set the Master and the

Slave’s FAIL switches according to the relevant

illustration and chart.

5. If using feedback, connect to one actuator only.

Do NOT interconnect the feedback between the

master and slave.

NOTE: The 4–20 mA input and auto-mapping

options are not available with Master/

Slave actuators.

CAUTION

Miswiring or wrong switch positions could

result in damage to one or more actuators.

Carefully check wiring and switch positions.

MEP-7802/7852 Dual Actuators, 0–10 or 2–10 VDC, OPPOSITE Mount (e.g., on KMC’s ﬂanged globe valves)

CW/CCW Switches Fail Switches (MEP-7852 only) Unavailable Options

Opposite Positions Opposite Positions 4–20 mA input and Auto-Mapping

MEP-7802/7852 Proportional Actuators

MEP-7802/7852 Dual,Triple, or Quad Actuators, 0–10 or 2–10VDC, STACKED Mount (e.g., on KMC’s butterﬂy valves)

CW/CCW Switches Fail Switches (MEP-7852 only) Unavailable Options

Same Positions Same Positions 4–20 mA input and Auto-Mapping

24 VAC/VDC

Power In

0/2–10 VDC Control Signal

0/1–5 or 0/2–10 VDC

Feedback Signal

Control Signal Common

Input Voltage

Range Set the

Same on Both

Actuators

MASTER SLAVE

(MEP-7802/7852 Opposite Mount, Proportional Input)

MASTER

(MEP-7x52 Only)

CCW

OUT

COM

24 VAC

CCW

OFF

0/1-50/2-10

0/2-10 IN

4-20 mA IN

DIRECTION

AND MAPPING

FAIL-SAFE

DIRECTION

0-10

2-10

(MEP-7x52 Only)

CCW

OUT

COM

24 VAC

CCW

OFF

0/1-50/2-10

0/2-10 IN

4-20 mA IN

DIRECTION

AND MAPPING

FAIL-SAFE

DIRECTION

24 VAC/VDC

Power In

0/2–10 VDC Control Signal

0/1–5 or 0/2–10 VDC

Feedback Signal

Control Signal Common

Input Voltage

Range Set the

Same on Both

Actuators

MASTER SLAVE

(MEP-7802/7852 Stacked Mount, Proportional Input)

MASTER

(MEP-7x52 Only)

CCW

OUT

COM

24 VAC

CCW

OFF

0/1-50/2-10

0/2-10 IN

4-20 mA IN

DIRECTION

AND MAPPING

FAIL-SAFE

DIRECTION

0-10

2-10

(MEP-7x52 Only)

CCW

OUT

COM

24 VAC

CCW

OFF

0/1-50/2-10

0/2-10 IN

4-20 mA IN

DIRECTION

AND MAPPING

FAIL-SAFE

DIRECTION

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 8 Applications Guide, AN1113A Rev. D

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

MASTER SLAVE

(MEP-7802/7852 Opposite Mount, 0–10 VDC Input)

(MEP-7802/7852 Stacked Mount, 0–10 VDC Input)

(MEP-7851/7853 Opposite Mount)

(MEP-7801/7803 Stacked Mount)

(MEP-7801/7803 Opposite Mount)

(MEP-7851/7853 Stacked Mount)

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

MASTER SLAVE

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

MASTER

7851/7853 Dual Actuators, OPPOSITE Mount (e.g., on KMC’s ﬂanged globe valves)

MEP-7851/7853 Tri-State with Fail-Safe Actuators

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

MASTER SLAVE

(MEP-7802/7852 Opposite Mount, 0–10 VDC Input)

(MEP-7802/7852 Stacked Mount, 0–10 VDC Input)

(MEP-7851/7853 Opposite Mount)

(MEP-7801/7803 Stacked Mount)

(MEP-7801/7803 Opposite Mount)

(MEP-7851/7853 Stacked Mount)

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

MASTER SLAVE

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

MASTER

7851/7853 Dual or Quad Actuators, STACKED Mount (e.g., on KMC’s butterﬂy valves)

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

MASTER SLAVE

(MEP-7802/7852 Opposite Mount, 0–10 VDC Input)

(MEP-7802/7852 Stacked Mount, 0–10 VDC Input)

(MEP-7851/7853 Opposite Mount)

(MEP-7801/7803 Stacked Mount)

(MEP-7801/7803 Opposite Mount)

(MEP-7851/7853 Stacked Mount)

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

MASTER SLAVE

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

MASTER

MEP-7801/7803 Dual Actuators, OPPOSITE Mount (e.g., on KMC’s ﬂanged globe valves)

MEP-7801/7803 Tri-State Actuators

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

MASTER SLAVE

(MEP-7802/7852 Opposite Mount, 0–10 VDC Input)

(MEP-7802/7852 Stacked Mount, 0–10 VDC Input)

(MEP-7851/7853 Opposite Mount)

(MEP-7801/7803 Stacked Mount)

(MEP-7801/7803 Opposite Mount)

(MEP-7851/7853 Stacked Mount)

24 VAC/VDC

Power In

(MEP-7x52 Only)

0–10 VDC Control Signal

0–5 or 0–10 VDC Feedback Signal

Control Signal Common

(MEP-7x52 Only)

MASTER SLAVE

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

24 VAC/VDC

Power In

CWCCW

SLAVEMASTER

24 VAC/VDC

Power In

CW CCW

SLAVEMASTER

MASTER

MEP-7801/7803 Dual or Quad Actuators, STACKED Mount (e.g., on KMC’s butterﬂy valves)

RotationTerminals Fail Switches

CW to CCW and

CCW to CW Opposite

Positions

RotationTerminals Fail Switches

CW to CW and

CCW to CCW Same

Positions

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 9 Applications Guide, AN1113A Rev. D

Troubleshooting

Auxiliary Switch Does Not Work

• Check the auxiliary switch seing. See the

CME-7001/7002 Auxiliary Switches Installation

Guide.

• Check the wiring. See Wiring Issues on page 10.

Fail-Safe Does Not Work

• After initial connection or reconnection to power,

proper fail-safe operation might be delayed up

to 20 seconds for the MEP-725x/755x or up to 40

seconds for the MEP-785x (until the capacitors

are fully charged).

• Check the Fail-Safe Direction switch. See Con-

guration on page 9.

Feedback Does Not Work

• Check the feedback switch seing. See Congu-

ration on page 9.

• Check the wiring. See Wiring Issues on page 10.

No Rotation

• Check that the direction switch (Switch 2) is fully

engaged in the proper position. See Congura-

tion on page 9.

• Check that the shaft moves freely. (Press and

hold the gear disengagement lever and manually

rotate the shaft.)

• Check for a tripped circuit breaker to the trans-

former (or power supply).

• Check polarity and strength of input signal.

• Check for proper supply voltage from the trans-

former (or power supply) and that it has enough

capacity (VA) for all connected devices. See their

respective data sheets and Tips for Connecting

24-Volt Power Application Note (AN0604D).

• Check the wiring. See Wiring Issues on page 10.

For direction, feedback, and auto-mapping setup,

see the MEP-7200/7500/7800 Series Installation

Guide.

NOTE: Before Jan. 2014, MEP-7xx2 proportional

models had (besides the 4-20 mA input)

a 0–10 VDC input and 0–5 or 0–10 VDC

feedback. From 2014 through July 2015,

they had a 2–10 VDC input and 1–5 or 2–10

VDC feedback instead. Starting in August

2015, all these options were available and

selectable via a jumper and slide switch.

NOTE: When the 0–10 VDC input is selected (with

the jumper), selectable (with a switch)

feedback options are 0–5 or 0–10 VDC.

When the 2–10 VDC input is selected,

feedback options are 1–5 or 2–10 VDC.

Conﬁguration

MEP-7xxx Direct-Coupled Actuators (up to 320 in-lb.) 10 Applications Guide, AN1113A Rev. D

Rotation in Wrong Direction

• For tri-state models, check the CW/CCW wiring.

• For proportional models, check the position of

the direction switch (Switch 2). See Congura-

tion on page 9.

• For fail-safe operation, check the Fail-Safe Direc-

tion switch. See Conguration on page 9.

Stroke Range Is Wrong

• Use and/or check position of the HMO-4536

adjustable end stop kit.

• On proportional models, check the auto-map-

ping. See Conguration on page 9.

• Check the voltage from the controller or thermo-

stat.

Wiring Issues

• For master/slave wiring, see Master/Slave Wir-

ing on page 7.

• Check for correct wiring for the application.

• Check the wiring at the connected devices.

• Use a voltmeter and ohmmeter to check the

terminals for expected values.

• See Tips for Connecting 24-Volt Power Applica-

tion Note (AN0604D).

NOTE: Wiring must be adequate to avoid exces-

sive voltage drop on long runs! Allow

plenty of “cushion” in measurements. A

meter may be too slow to register tran-

sient dips or peaks during startup.

Index

Symbols

0-5/0-10 vs. 1-5/2-10 VDC Feedback: 4, 9

0-10 vs. 2-10 VDC Inputs: 9

4-20 mA: 7

Accessories: 5

Auto-Mapping: 9

Auxiliary Switch: 5, 9

Bracket, Non-Rotation: 6

Brackets, Non-Rotation: 6

Cable: 5

CME-7001/7002: 5

Conduit Fitting: 5

Conﬁguration: 9

Cord Grip: 5

Crank Arm Kit: 6

CTE-5202: 5

Dampers: 3

Direction: 7, 9, 10

Enclosure: 5

Fail-Safe: 7, 9, 10

Feedback: 4, 9

HCO-1152 Weather Shield Kit: 5

HLO-1020 Crank Arm Kit: 6

HMO-4521 Liquid-Tight Cord Grip: 5

HMO-4535 Non-Rotation Bracket: 6

HMO-4536 Adj. End Stop Kit: 5

HPO-7001 Wiring Kit: 5

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