Metso Valvcon LCR Series Operating and maintenance manual

IMO-I1262 • 1/2014

VALVCON

LCR-Series

REVERSING ELECTRIC ACTUATORS

Installation, Maintenance and

Operating Instructions

Table of Contents

1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 General Technical Information . . . . . . . . . . . . . . . 3

2 TEMPERATURE LIMITS . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Low Ambient Temperatures . . . . . . . . . . . . . . . . . 3

2.2 High Ambient Temperatures. . . . . . . . . . . . . . . . . 3

2.3 High Media Temperatures . . . . . . . . . . . . . . . . . . . 3

3 MOUNTING THE ACTUATOR . . . . . . . . . . . . . . . . . . . 6

3.1 Actuator Drive Output Requirements . . . . . . . . 6

3.2 Bracket Requirements . . . . . . . . . . . . . . . . . . . . . . . 6

4 MANUAL OVERRIDE . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 Male Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.2 Female Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5.1 AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5.2 DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6 ADJUSTMENT OF THE LIMIT SWITCHES . . . . . . . . 7

6.1 Adjust the Open Limit Switch. . . . . . . . . . . . . . . . 7

6.2 Adjust the Closed Limit Switch . . . . . . . . . . . . . . 7

7 OTHER OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

READ THESE INSTRUCTIONS FIRST!

These instructions provide information about safe handling and operation of the actuator.

If you require additional assistance, please contact the manufacturer or manufacturer's representative.

Addresses and phone numbers are printed on the back cover.

See also www.metso.com/valvcon for the latest documentation.

SAVE THESE INSTRUCTIONS!

Subject to change without notice.

All trademarks are property of their respective owners.

2IMO-I1262

1 GENERAL

1.1 Description

Valvcon's LCR-Series Electric Actuators are designed to

provide reliable and efficient operation of 1/4-turn valves.

The supported torque range for actuation is between 150

and 600 inch pounds. LCR-Series actuators are available in

AC models with a 25% duty cycle and DC models with an

80% duty cycle.

1.2 Parts List

1 - Limit Switches

2 - Cams

3 - O-Ring

1.3 General Technical Information

LCR-Series AC voltage actuators use a split phase motor,

which internally steps up the applied AC voltage and feeds

it back to the off terminal. For example, when 115 VAC

power is applied at terminals 1 and 4, 230 volts will be fed

back to terminal 3. This can create a problem for con-

trollers with solid state outputs rated for less then 230 VAC

and it is suggested that relay outputs be used.

Additionally, due to this feed back, multiple actuators can-

not be wired in parallel, and individual leads (isolated con-

tacts) must be run to each actuator.

It is important to verify that the output torque of the actu-

ator is appropriate for the torque requirements of the

valve and that the actuator duty cycle is appropriate for

the intended application.

2 TEMPERATURE LIMITS

2.1 Low ambient temperatures:

The minimum recommended ambient temperature with-

out the optional heater and thermostat is approximately

30°F (although it varies with the frequency of use). With

the optional heater and thermostat installed, the recom-

mended minimum ambient temperature is -40°F.

2.2 High ambient temperatures:

The maximum recommended ambient temperature is

150°F.

2.3 High media temperatures:

For media temperatures up to 200°F, additional precau-

tions are not typically required. For media temperatures

between 200°F and 300°F, a shielding plate about on inch

larger than the actuator in each dimension should be

placed between the actuator and the mounting bracket.

In addition, the actuator should be mounted at the

3 o'clock or 9 o'clock position relative to the pipe. For

media temperatures above 300°F, a valve with an extend-

ed shaft mounting arrangement should be used.

CAUTION:

Dangerous voltages are present inside the actua-

tor cover unless the power supply to the actuator

has been shut off or disconnected. Use extreme

caution whenever working on the actuator with

the cover removed.

IMO-I1262 3

Figure 1 Parts Identification

4IMO-I1262

* Requires an additional 4.375" to remove cover.

Figure 2A Dimensions, Male output (standard)

Figure 2B Dimensions, Female output (optional)

Approximate Weight 7 lb

AC NEUTRAL/L1

AC HOT, OPT. HEATER/L2

AC HOT, CCW, OPEN

AC HOT, CW, CLOSED

CCW, OPEN, INDICATION

CW, CLOSED, INDICATION

AUX. LIMIT SWITCH COM

BLK

WHT

RED

WHT

BLK

RED

WHT

BLK

COM

NO RED

NO WHT

MOTOR

TERMINAL

STRIP

12345678910

D C

MOTOR

CW LIMIT

SWITCH

CCW LIMIT

SWITCH

CCW

+ POS

- NEG

VDC

1112

NONC NC NO

HEATER /

THERMOSTAT

(OPT)

BRAKE

NOTE: ACTUATOR SHOWN IN

FULLY OPEN (CCW) POSITION

COM

POS

NEG

COM

AUX LIMIT

SWITCHES

IMO-I1262 5

Figure 3A LCR Series AC Wiring

Figure 3B LCR Series DC Wiring

3 MOUNTING THE ACTUATOR

First verify that the output torque of the actuator is appro-

priate for the torque requirements of the valve and that

the actuator duty cycle is appropriate for the intended

application.

3.1 Actuator Drive Output Requirements:

Valvcon's LCR-Series actuators have a square output drive.

ISO 5211 bolt circle configurations are provided (see

Figures 2A and 2B).

3.2 Bracket Requirements:

It is mandatory that the actuator be firmly secured to a

sturdy mounting bracket. A minimum of four bolts with

lockwashers must be used to secure the actuator to the

bracket. There can be no flexibility in the bracket, and

backlash ("play") in the coupling should be minimized. In

addition, the actuator output shaft must be in line (cen-

tered) with the valve shaft. This avoids side-loading the

shafts (crossed-slot couplings are more tolerant of mis-

alignment).

4 MANUAL OVERRIDE

4.1 Male output:

To operate the actuator manually, push the override shaft

down approximately 1/4", and use a wrench on the flats of

the shaft to rotate the actuator. As noted in Figure 2A, the

coupling must be designed to accommodate this shaft

movement. The override shaft can also be used to provide

visual identification of the valve's position.

4.2 Female output:

To operate the actuator manually, push the override shaft

down approximately 1/4", and use a wrench on the flats of

the shaft to rotate the actuator.The override shaft can also

be used to provide visual identification of the valve's posi-

tion.

5 WIRING

Note: Be sure to follow local wiring codes.

The identification label on each actuator specifies the volt-

age and current requirements for the actuator. Figure 3

shows the standard power and control wiring connections

for AC and DC actuators. To operate the LCR-Series actua-

tor, the user supplies power to the actuator's motor

through two limit switches. The limit switches control the

actuator's mechanical travel limits and are factory set at 90

degrees.

5.1 AC

To drive the actuator counterclockwise (CCW), apply

power to terminals 1 and 3. To drive the actuator clock-

wise (CW), apply power to terminals 1 and 4. The actuator

can be driven fully open (CCW) or closed (CW) by main-

taining power to the motor until the actuator trips the

internal limit switches. Power can also be disconnected at

any point during the travel to position the actuator. (see

Figure 3A)

5.2 DC

DC voltage actuators require a reversing of the power

polarity. To drive the actuator CW, apply power so that ter-

minal 1 is negative and terminal 4 is positive. To drive the

actuator CCW, apply power so that terminal 1 is positive

and terminal 3 is negative. (see Figure 3B)

NOTE: LCR series actuators have a 25% duty cycle,

which means that for every operating cycle that the

actuator is ON (to open or close the valve), the actuator

must be OFF for a time equal to three operating cycles.

For example, if the operating cycle time is 5 seconds,

for every operating cycle that the actuator is ON, it

must be OFF for 15 seconds. Exceeding the actuator's

duty cycle may cause the thermal overload switch to

temporarily shut off power to the motor.

6IMO-I1262

6 ADJUSTMENT OF THE LIMIT SWITCHES

If adjustment of the open or closed position is required,

proceed as follows:

6.1 Adjust the OPEN limit switch cam

1. Using a hex wrench, loosen the set screw in the

OPEN limit switch cam (the second up from the bot-

tom).

2. Apply power to terminals 1 and 3 (See Figures 3A

and 3B) to drive the actuator to the open position

(counterclockwise rotation).

3. Remove the power from the actuator.

4. Rotate the cam toward the limit switch arm just until

the switch clicks closed.

5. Set the vertical cam position so that the bottom of

the cam will be in contact with the limit switch arm.

Tighten the Cam set screw to secure the Cam in posi-

tion. Do not over-tighten the screws (use less than 8

in/lbs of tightening torque). If the cam is not set

"high" as described, the cam will become disengaged

from the limit switch arm when using the manual

override feature.

6.2 Adjust the CLOSED limit switch cam

1. Using a hex wrench, loosen the set screw in the

CLOSED limit switch cam (the bottom one).

2. Apply power to terminals 1 and 4 (See Figures 3A

and 3B) to drive the actuator to the closed position

(clockwise rotation).

3. Remove the power from the actuator.

4. Rotate the cam toward the limit switch arm just until

the switch clicks closed.

5. Set the vertical cam position so that the bottom of

the cam will be in contact with the limit switch arm.

Tighten the Cam set screw to secure the Cam in posi-

tion. Do not over-tighten the screws (use less than 8

in/lbs of tightening torque). If the cam is not set

"high" as described, the cam will become disengaged

from the limit switch arm when using the manual

override feature.

7 OTHER OPTIONS

Other options such as extra limit switches and heater/ther-

mostats are available. Consult your local Valvcon represen-

tative.

IMO-I1262 7

8IMO-I1262

Metso Automation Inc.

Europe, Vanha Porvoontie 229, P.O. Box 304, FI-11301 Vantaa, Finland, Tel. +358 20 483 150, fax +358 20 483 151

North America, 44 Bowditch Drive, P.O.Box 8044, Shrewsbury, Massachusetts, 01545-8044 USA. Tel. int. +1 508 595 5083. Fax int. +1 508 595 5183

www.metso.com/valvcon

Subject to change without prior notice.

Additional Actuator Products and Accessories from Metso

V-Series

• Up to 3000 inch pounds for On/Off, Modulating or

Automatic Cycling applications

• 75% Duty Cycle

• 115VAC and 230VAC voltages

• NEMA 4/4X and NEMA 4/4X/7&9 enclosures

• CSA Certified (Canadian & U.S. Standards)

• Options include Modulating Control Board, Speed

Control/TimerBoard, Iso/Readback Board, extra limit

switches, heater/thermostats, motor brake, feedback

potentiometer and handwheel override

I-Series Network Capable

• Modbus®

• AS-Interface

• DeviceNet™

• Foundation Fieldbus

• Other fieldbus protocols (consult factory)

Q6-Series for Remote Solar Applications

• 600 inch pounds

• 12VDC

• Low current draw

ADC-Series

• Up to 3000 inch pounds for On/Off or Modulating

applications

• Optional Internal Battery Back-Up

• Continuous Duty Cycle

• 115VAC, 230VAC, 24VAC, 12VDC and 24VDC voltages

• Options include extra limit switches, heater/thermo-

stats and handwheel override

QX-Series

• Up to 3000 inch pounds for On/Off applications

• Economical NEMA 4/4X/7&9 solution

• 12VDC & 24VDC voltages

• 80% Duty Cycle

• CSA (C US) Certification

ESR-Series

• Up to 600 inch pounds for True "Two-Wire" On/Off

applications

• 80% Duty Cycle

• 115VAC and 230VAC voltages

• Options include extra limit switches and heater/ther-

mostats

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