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.
2 IMO-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 controllers 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 cannot be wired in parallel, and individual leads (isolated contacts) must be run to each actuator.
It is important to verify that the output torque of the actuator 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 without 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 recommended 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 precautions 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 extended shaft mounting arrangement should be used.
CAUTION:
Dangerous voltages are present inside the actuator 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
4 IMO-I1262
* Requires an additional 4.375" to remove cover.
*
* Requires an additional 4.375" to remove cover.
*
Figure 2A Dimensions, Male output (standard)
Figure 2B Dimensions, Female output (optional)
Approximate Weight 7 lb
Approximate Weight 7 lb
IMO-I1262 5
Figure 3A LCR Series AC Wiring
Figure 3B LCR Series DC Wiring
TERMINAL
STRIP
BLK
AC NEUTRAL/L1
1
AC HOT, OPT. HEATER/L2
AC HOT, CCW, OPEN
AC HOT, CW, CLOSED
CCW, OPEN, INDICATION
CW, CLOSED, INDICATION
NC
AUX. LIMIT SWITCH COM
NO
NC
AUX. LIMIT SWITCH COM
NO
2
3
4
5
6
7
8
9
10
11
12
CW LIMIT
SWITCH
WHT
WHT
RED
RED
RED
WHT
BLK
RED
WHT
BLK
NONC NC NO
COM
COM
COM
COM
CCW LIMIT
D C
MOTOR
NO RED
NC
NO WHT
NC
NC
NO
NC
NO
SWITCH
MOTOR
AUX LIMIT
SWITCHES
NC
COM
1112
NC
THERMOSTAT
COM
HEATER /
(OPT)
POS
NEG
NOTE: ACTUATOR SHOWN IN
FULLY OPEN (CCW) POSITION
6
5
7
BRAKE
CW
2
3
8
CCW
4
1
12345678910
+ POS
VDC
- NEG
3 MOUNTING THE ACTUATOR
First verify that the output torque of the actuator is appropriate 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 (centered) with the valve shaft. This avoids side-loading the
shafts (crossed-slot couplings are more tolerant of misalignment).
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 position.
5 WIRING
Note: Be sure to follow local wiring codes.
The identification label on each actuator specifies the voltage 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 actuator, 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 clockwise (CW), apply power to terminals 1 and 4. The actuator
can be driven fully open (CCW) or closed (CW) by maintaining 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 terminal 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)
NO
TE: 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.
6 IMO-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 bottom).
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 position. 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 position. 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/thermostats are available. Consult your local Valvcon representative.
IMO-I1262 7
8 IMO-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/thermostats 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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