Chamberlain ESTATE SERIES SW 2000-X3 User manual

ESTATE SERIES
INSTALLATION MANUAL
MODEL SW 2000-X3
HEAVY DUTY, HIGH CYCLE SWING GATE OPERATOR
MODEL SW 2000-X3 IS FOR VEHICULAR PASSAGE GATES
ONLY, NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
3 YEAR WARRANTY
Serial # _____________________
(located on electrical box)
Installation Date ______________
X3

Rev F Doc 01-20099
TABLE OF CONTENTS
SAFETY SUMMARY ___________________________________________________________________1
BASIC INSTALLATION HINTS AND RULES ______________________________________________2
PART 1 SITE PREPARATION __________________________________________________________3
A. LOCATION AND LAYOUT ________________________________________________________________ 3
B. PAD AND MOUNT _______________________________________________________________________ 4
C. POWER WIRING_________________________________________________________________________ 5
D. LOOP DETECTORS AND PHOTO-SENSORS _________________________________________________ 5
E. TELEPHONE CONNECTION _______________________________________________________________ 5
F. MASTER/SLAVE INTERCONNECTION (MASTER/SLAVE SYSTEM ONLY)_______________________ 5
G. OTHER CONNECTIONS __________________________________________________________________ 5
H. GROUNDING __________________________________________________________________ 5
PART 2 SY STEM INSTALLATION ______________________________________________________6
A. GATE AND PHOTO-SENSOR LAYOUT ______________________________________________________ 6
B. MOUNTING GATE OPERATOR ____________________________________________________________ 7
C. CONNECTING POWER ___________________________________________________________________ 7
D. RUNNING INPUT WIRING ________________________________________________________________ 8
E. SETTING GATE OPEN DIRECTION SWITCHES S2 AND S3 ____________________________________ 8
F. POWER UP PROCEDURE _________________________________________________________________ 9
G. USING MANUAL CONTROLS _____________________________________________________________ 9
H. GATE ARM INSTALLATION _____________________________________________________________ 10
I. SETTING LIMIT CAMS ___________________________________________________________________ 11
J. GATE SENSITIVITY ADJUSTMENTS ______________________________________________________ 13
K. CONNECTING INPUT WIRING ___________________________________________________________ 15
L. BASIC GATE OPERATOR PROGRAMMING_________________________________________________ 17
M. POST INSTALLATION PROCEDURES _____________________________________________________ 18
N. FINAL ASSEMBLY OF GATE OPERATOR __________________________________________________ 22
O. PROGRAMMING THE RADIO RECEIVER __________________________________________________ 23
PART 3 LIFTMASTER LOOP DETECTOR BOARDS (OPTIONAL) __________________________24
PART 4 TROUBLESHOOTING AND MAINTENANCE ____________________________________ 25
A. TROUBLESHOOTING ___________________________________________________________________ 25
B. FAULT LIST ___________________________________________________________________________ 28
C. FAULTS AND THEIR CAUSES ____________________________________________________________ 29
D. MAINTENANCE ________________________________________________________________________ 30
APPENDIX A: SYSTEM OPERATION REFERENCE ______________________________________ 33
APPENDIX B: SW 2000-X3 PARTS LIST _________________________________________________38
GLOSSARY__________________________________________________________________________40
FCC REQUIREMENTS________________________________________________________________41
NOTICE TO CANADIAN USERS _______________________________________________________42

Doc 01-20099 RevMF
TABLE OF FIGURES
Figure 1. Gate Operator Layout Options____________________________________________________ 3
Figure 2. Pad and Mount. _______________________________________________________________4
Figure 3. Photo-Sensor Layout ___________________________________________________________6
Figure 4. AC Wiring____________________________________________________________________ 7
Figure 5. Gate Direction and UPS Low Battery Switch Locations. ________________________________8
Figure 6. Manual Controls, Location and Use. _______________________________________________ 9
Figure 7. Gate Arm Installation__________________________________________________________ 10
Figure 8. Setting Right Gate Limit Cam ___________________________________________________11
Figure 9. Setting Left Gate Limit Cam_____________________________________________________ 12
Figure 10. Gate Sensitivity Adjustments Location. ___________________________________________ 13
Figure 11. Control Board Wiring _________________________________________________________15
Figure 12. Photo-Sensor Coverage Areas __________________________________________________ 20
Figure 13. Gate Operator Final Assembly__________________________________________________ 22
Figure 14. Programming The Radio Receiver __________________________________ 23
Figure 15. Programming The Radio Receiver ________________________________________ 23
Figure 16. Programming The Radio Receiver _______________________________________________________________ 23
Figure 17. Gate Operator Final Assembly__________________________________________________ 24
Figure 18. Gate Operator Disassembly and Assembly. ________________________________________31
Figure 19. Exploded View_______________________________________________________________ 39

Rev F Doc 01-20099
The LiftMaster Gate Operator Model SW 2000-X3
The LiftMaster Gate Operator model SW 2000-X3 is a full featured, commercial swing gate
operator with a telephone interface. The gate operator contains the following features:
• Satisfies U.L. 325 requirements for primary (motor current) and secondary (photo) obstruction
senses.
• Five different open inputs are available for a variety of devices.
• Dynamic motor braking limits gate overtravel.
• Separated arm segment joints reduce the risk of injury to users.
• Alternate action OPEN/CLOSE inputs.
• Manual Open/Close/Stop inputs are provided for three-button station.
• Programmable Reclose timer.
• Gate lock relay can be used for electromagnetic locks and CCTV cameras or lights.
• Master-Slave operation for two operators on bi-part gates and vehicle trap gates.
• Selectable anti-tailgate function prevents two cars from entering on one open command.
• Open motor detection in case of motor thermal overload.
• Maximum Run Time feature stops run-away motor in case of belt breakage.
• Senses obstructions through adjustable peak and fixed average motor current sense.
• Two separate peak motor current sense adjustments for reversing direction or stopping; one
for clockwise motion and the other for counterclockwise motion.
• Start-up current sense adjustment offsets initial inrush current to the motor.
• Obstruction Alarm sounds off the second time the gate is obstructed.
• Interrupt Bar input is included for use with edge sensors.
• Cycle counter is able to initiate a service request call at a predetermined number.
• Event recording memory keeps track of all commands and actions even during power
interruptions. This is very helpful in troubleshooting the system. Can be retrieved by modem into
your computer.
• Automatic service request call is activated in the event of a fault or warning condition. A call
can be made to any telephone or pager and will include system ID number and fault condition
code.
• 12-button keypad and 7-segment display to facilitate programming, service and operation.
• Automatic OPEN/CLOSE and Alert Call schedules include holidays.
• Two 115 VAC accessory plugs provided.
• 24 VAC accessory power provided.
• True ½ HP high starting torque motor reduces stalling.
• 80:1 worm gear reduction.
• Handles any gate weight up to 1000 pounds and length up to 18 feet.
• Diagnostic LEDs on controller board show gate operator actions and assist in troubleshooting.
• Remote telephone interface permitting gate operator programming and diagnostics.
• Inside and Outside Interrupt Loops and Photo Sensor Inputs enhance gate control and
distinguish between entering and exiting traffic.
• Quick disconnect arm cap for fast and easy release of gate arm.
• Cover access door provides easy access to the control box.
• Optional loop detector add-on boards plug into the controller board, reducing wiring.
DIMENSIONS WEIGHT ELECTRICAL
Height 24” 159 Lb. 115 VAC, 60 Hz. Single Phase
Width 20” 15 amp (A separate 20 AMP circuit
Depth 23” is required by most codes.)

Rev F Doc 01-20099 1 of 42
SAFETY SUMMARY
It is important for everyone involved in the installation and operation of the Gate Operator to
read the following warnings.
WARNING!
1. READ AND FOLLOW ALL INSTRUCTIONS. Improper installation of a gate operator
can result in a dangerous system. SAVE THESE INSTRUCTIONS.
2. A vehicle gate is a large, heavy object that is moved by an electric motor. A moving
gate can cause serious injury or death! The safety and well-being of others depends
on the installation of a safe system.
3. The entrance is for VEHICLES ONLY. Pedestrians must use a separate entrance.
Always keep people and objects away from the gate. NO ONE SHOULD CROSS THE
PATH OF THE MOVING GATE.
4. Choose one or more controls that together will allow complete control of the gate.
Most importantly, the gate must be able to be stopped at all times in case of
emergency, and the emergency control should be conveniently located, clearly
marked and visible.
5. All controls must be kept out of the reach of small children. Serious injury or death
can result from children playing with the controls.
6. All controls should be located so the person operating them can see the full area of
gate movement.
7. Use the emergency release only when the gate is not moving.
8. KEEP GATES PROPERLY MAINTAINED. Have a qualified person make repairs to the
gate hardware.
 Test the gate operator safety features monthly. The gate MUST reverse on
contact with a rigid object or stop when an object activates the non-contact
sensors.
 After adjusting the force or the limit of travel, retest the gate operator. Failure
to adjust and retest the gate operator properly can increase the risk of
damage, injury or death.
9. Gate operators and associated control equipment should be installed by qualified
professional installers who should observe the following safe installation
procedures:
 Power should always be disconnected whenever installing, wiring or servicing a gate
operator. Moving chains in gate operators can catch clothing or fingers and cause
severe injury.
 Installation of wiring should comply with local building and electrical codes.
 All manual gate locks should be disabled to avoid damage to the gate or gate operator
should the lock become engaged after the operator is installed.
 All operator controls and safety equipment should be tested at the conclusion of
installation to be sure they are functioning properly.
 The operation of the gate controls and safety equipment should be reviewed with the
owner and/or end user of the automated gate system. They should also be informed
of the need to maintain control and safety equipment on a regular basis. Safety
equipment should be checked monthly to ensure it is working properly. All
installation manuals and safety information should be left with the owner.
 Moving gates have pinch points and entrapment zones which can be extremely
dangerous to pedestrians, especially small children.

2 of 42 Doc 01-20099 Rev F
BASIC INSTALLATION HINTS AND RULES
READ THIS SECTION CAREFULLY BEFORE BEGINNING YOUR INSTALLATION.
1. UNDERSTAND THE SYSTEM AND INSTALLATION SITE THOROUGHLY. The SW
2000 is a flexible and reliable gate operator system, but the quality of service depends
directly on the quality of installation. Please read these instructions carefully and study the
applicable diagrams before planning your installation. In particular, understand any site
characteristics that may affect the system installation.
WARNING
2. INSTALL PERMANENT WIRING. UL specifications require the SW 2000 system to be
permanently wired. Refer to your local wiring code for specific information.
WARNING: Damage caused by faulty wiring is not covered by warranty.
3. U.L. OBSTRUCTION-SENSING REQUIREMENTS. To maximize safety, U.L. 325
standards require primary obstruction sensing (gate sensitivity to impact) and secondary
obstruction sensing (photo-sensors) be in operation at all times.
4. GROUND THE SYSTEM. The system contains parts which may be damaged by static
discharge. A proper earth ground connected to the gate operator housing at the lower left
grounding screw (see Figure 12) will significantly reduce the chances of damage or
improper operation. The shielding in the cables specified for all remote sensors and
controls should also be connected to earth ground at the controller end of the cable only.
To be effective, the ground connection must be made by running 12 AWG copper wire to a
good ground point (e.g., an electrical panel, a metallic cold water pipe that runs into the
earth, or a grounding rod at least 10 feet in length that is driven into the earth) within 12
feet of the system. Even if you have a good earth ground, you should try to discharge any
static before handling the circuit boards.
WARNING: Damage caused by static discharge and lightning is not covered by warranty.
5. PROVIDE POWER FROM A DEDICATED SOURCE. The outlet into which you connect
the Gate Operator should be wired to its own circuit breaker to reduce line noise and
minimize the risk of having other equipment interrupt system operation. In a Master/Slave
system, Master and Slave must each have separate circuits.
6. DO NOT OVERLOAD THE TERMINAL BLOCKS. The terminal blocks are removable and
the pins are soldered into the boards. To connect your wires, remove the "head" from the
correct terminals and loosen the screws. Insert the wire into the correct opening on the
front and tighten the screw until the wire is held firmly. When you have made all
connections for a given "head", plug it back onto the pins designated for that terminal
block.
Stranded wire must be between 16 and 24 AWG. Solid wire must be between 18 and 24
AWG. This is the total thickness measurement so, if you are putting two wires in, the
combined thickness must fall within this range. NEVER try to insert more than two wires
per terminal.
7. ENSURE GOOD CONNECTIONS. A light tug on the wire will tell you if the connection is
secure. When reconnecting system components, make sure all pins are straight on chips,
connectors, and terminal block heads.
8. READ THE MARKINGS CAREFULLY. The connection points are marked on the boards
clearly. Before making any connection, be sure to read the marking and check it against
the corresponding figure in these instructions.
9. TRAIN YOUR CUSTOMERS THOROUGHLY. Although customer responsibility is limited
to proper installation, the quality of service is determined by the care of system setup.
Ensure that the customer has a copy of this manual to guide them.

Rev F Doc 01-20099 3 of 42
PART 1
SITE PREPARATION
A. LOCATION AND LAYOUT
Figure 1. Gate Operator Layout Options

4 of 42 Doc 01-20099 Rev F
NOTES
• Left Gate and Right Gate are determined by looking from inside the complex toward
the street.
• Figure 1 shows a typical Bi-Parting gate in standard and compact installations.
1. Always install gate operators inside of the fence line, NEVER on the public side of
the fence.
2. Mount all manual controls and activating devices at least 6 ft. away from the gate
for safety.
3. Allow enough clearance around the gate and the gate operator for installation and
service.
B. PAD AND MOUNT
Figure 2. Pad and Mount.
1. The concrete pad must be sufficient to support the gate operator and the dynamic
forces created by the moving gate. LiftMaster recommends a pad 24” wide by 27”
long by 30” deep.
2. The operator must be level and parallel to the gate, so the pad should be level and
about 4” above grade to prevent water entrance.
3. Four anchor bolts are required to secure the gate operator to the pad. The
mounting holes in the gate operator are 5/8” in diameter. Red Head bolts ½” x 3½“
are recommended.
4. Be sure to provide access for wiring conduits. In Master/Slave systems, remember
to include conduit stubs for separate inputs (if any) and for the Master/Slave
connection cable between gate operators. For more information about
Master/Slave systems, see Master/Slave Systems for X3 Series Gate Operators.
NOTE: Shading indicates conduit stub access areas.

Rev F Doc 01-20099 5 of 42
C. POWER WIRING
1. Provide a separate conduit stub for the AC power.
2. Each gate operator requires a 115 VAC 20 AMP single phase circuit
NOTE: Master and Slave units each require separate circuits to prevent false
overcurrent faults (see X3 Series Master/Slave Systems).
3. Wiring must comply with the local Electrical Code for operating a 1/2HP motor. 12
AWG for up to 300' and 10 AWG for up to 500' long wire runs is suggested.
4. Be sure to pull a ground wire in the conduit for the connection to the gate operator.
NOTE: Do not rely on metallic conduit for earth ground.
D. LOOP DETECTORS AND PHOTO-SENSORS
1. A shelf is provided (10" x 11" x 18" high) to support non-LiftMaster loop detector
electronics. Power for the loop detector can come from the auxiliary 115 VAC plugs
in the gate operator or from the 24 VAC provided by the gate operator control board.
NOTE: The auxiliary plugs have power regardless of the unit power switch setting.
2. Conduit provisions should be made for the “loop” wire entrance to the loop detector.
3. Wiring should be 16-24 AWG stranded or 18-24 AWG solid.
NOTE: Optional LiftMaster-supplied loop detector add-on boards are available, both
pre-installed and for installation in the field. See Part 3, Gate Operator Options.
E. TELEPHONE CONNECTION
1. A conduit entrance into the gate operator should be provided for the telephone line.
2. A single twisted pair wire 18 AWG to 24 AWG, will be connected from the telephone
company termination block through the conduit to J9 on the control board. Polarity is not
important.
NOTE: Do not run telephone and AC power wires in the same conduit.
G. OTHER CONNECTIONS
1. Provisions should be made for conduit entrance into the gate operator for external
activation devices such as key switches, telephone entry systems, loops, etc.
2. Wire size requirement: 16-24 AWG stranded or 18-24 AWG solid wire should be used.
F. MASTER/SLAVE INTERCONNECTION (MASTER/SLAVE SYSTEM ONLY)
1. A conduit between the Master and Slave units should be provided for the Master/Slave
interconnection cable.
2. Two shielded twisted pair wire 16 AWG to 24 AWG will be connected between the two
units at TB1 on the controller board.
NOTES: 1. Do not run the Master/Slave cable and AC power wires in the same conduit.
2. Master/Slave interconnection cable should not exceed 3000' in length.
H. GROUNDING
1.
2.
The system contains parts which may be damaged by static discharge. A proper earth
ground connected to the gate operator housing will significantly reduce the chances of
damage or improper operation. The shielding in the cables specified for all remote
sensors and controls should also be connected to earth ground at the controller end of
the cable only.
To be effective, the ground connection must be made by running 12 AWG copper wire
to a good ground point (e.g., an electrical panel, a metallic cold water pipe that runs into
the earth, or a grounding rod at least 10' in length that is driven into the earth) within 12'
of the system. Even if you have a good earth ground, you should try to discharge any
static before handling the boards.

6 of 42 Doc 01-20099 Rev F
PART 2
SYSTEM INSTALLATION
A. GATE AND PHOTO-SENSOR LAYOUT
Figure 3. Photo-Sensor Layout

RevMFDoc 01-20099 7 of 42
IMPORTANT NOTE
The installation shown in Figure 3 is a suggested layout using emitters and receivers. Any
UL-approved photo-sensors are acceptable, but they must cover the entire area of gate
travel to be effective.
1. Install photo-sensors in three Coverage Areas as shown in Figure 3.
Coverage Area A- Inside-Open Coverage:
Inside the gate, from the gate post(s) to the gate fully open position(s).
Coverage Area B- Inside-Closed Coverage:
Inside the gate, from the gate open position across full arc of gate travel.
Coverage Area C- Outside-Closed Coverage:
Single Gates: Outside the gate, from the gate post to the fence.
Dual Gates: Outside the gate, from gate post to gate post.
2. For wiring instructions, see Paragraph K, Connecting Input Wiring, below.
NOTE: If you are installing a Master/Slave system, refer to Series X3 Master/Slave Systems
for additional layout information.
B. MOUNTING GATE OPERATOR
WARNING
To avoid injury, always turn off the unit power switch before working on gate.
1. Pull red release lever to disengage and remove quick disconnect arm cap from the output
shaft (see Figure 7).
2. Remove 4 protective bolts holding the cover on, lift off the cover and set aside.
3. Remove the assembly kit and parts.
4. Remove the 4 bolts that attach the gate operator to the shipping pallet.
5. Mount gate operator on cement pad using the previously installed anchors. Be sure the
operator is mounted level and square, with the control box facing away from the gate.
6. Connect the power conduit into the switch box.
7. Reinstall gate arm assembly onto output shaft/hub. Close red release lever until
engagement pin fully seats into hub and ball plunger engages on handle. This may require
slight side-to-side motion – HANDLE WILL CLOSE WHEN PIN IS PROPERLY ALIGNED –
DO NOT FORCE SHUT.
C. CONNECTING POWER
Figure 4. AC Wiring
CAUTION
Ensure that the AC power circuit breaker is turned off
before wiring power to the switchbox.
Run power cables through the conduit to Gate Operator, then
connect wires to the switch box as shown in Figure 4:
1. Wire nut the hot (black) wire to the black pig tail.
2. Wire nut the neutral (white) wire to the white pig tail.
3. Wire nut the ground (green) wire to the green pig tail.
4. Dress all wiring inside the switch box and install cover.

8 of 42 Doc 01-20099 Rev F
D. RUNNING INPUT WIRING
WARNING
Route but do not connect input wires at this time. If inputs are connected now, the
gate operator may activate at random during installation, potentially injuring installation
personnel.
1. Remove the plastic control box cover.
2. Run wires from input components conduits and Master/Slave conduits into control
box.
3. For Master/Slave wiring, refer to Master/Slave Systems for X3 Series Gate
Operators, Part 2.
E. SETTING GATE OPEN DIRECTION SWITCHES S2 AND S3
Figure 5. Gate Direction and UPS Low Battery Switch Locations.
NOTE: For swing gate operation, controls are Left/Clockwise and
Right/Counterclockwise.
• Switch S2 sets gate opening direction (open to left or open to right).
• Switch S2 is sensed only on power up, it should be set when the power is off, or
power should be cycled after setting the switch.
1. Set switch S2 to the Left for Clockwise Gate Opening, or to the Right for
Counterclockwise Gate Opening as required.
2. Set switch S3 to the direction you wish the gate to move (left or right) and remain
when the LOW BATTERY input is activated by an Uninterruptible Power Supply
(UPS).

RevMFDoc 01-20099 9 of 42
F. POWER UP PROCEDURE
CAUTION
If gate is positioned at the 'open' limit, gate will automatically close if Relcose
Timer is enabled and power is switched on. Position gate either at the closed
limit or at no limit when preparing to switch power on. Always use extreme
caution and follow all warning in the Safety Summary.
1. Turn on circuit breaker that provides power to gate operator.
2. Turn on gate operator power switch and verify that the seven-segment LED display
above the keypad sequentially spells out “HELLO”. The only LEDs that should
remain on are MAGLOCK and CLOSE LIMIT or OPEN LIMIT, if one of the limit
switches is engaged.
NOTE: If the LEDs do not follow this pattern, the controller board may not be working
correctly. Stop installation and call LiftMaster Technical Support for assistance.
G. USING MANUAL CONTROLS
Figure 6. Manual Controls, Location and Use.
If necessary, use the manual controls on Manual Input Terminal TB2 (OPEN, CLOSE,
and STOP, as shown in Figure 6), to move the gate arm during system installation.
• To open the gate: connect the OPEN and STOP terminals to the COMMON
terminal.
• To close the gate: connect the CLOSE and STOP terminals to the COMMON
terminal.
• To stop the gate: disconnect the STOP terminal to the COMMON terminal.
IMPORTANT NOTE
If the STOP terminal is disconnected from the COMMON terminal, the gate is
prevented from moving and no command will affect the gate.

10 of 42 Doc 01-20099 Rev F
H. GATE ARM INSTALLATION
NOTES:
1. All dimensions are measured from one pivot point to the next pivot point.
2. The dimensions shown above are only recommended settings. Your installation
may require different dimensions.
3. The SW 2000-X3 can be installed without welding. The anchor, swing arm and
drag link may be attached using the supplied hardware only, welded, or bolted and
welded.
4. Paint or other anti-rust coating must be applied to the cut areas of the swing arm
and/or drag link pipe to prevent rust.
1. Attach gate anchor to gate by welding or using hardware (not supplied).
2. Using manual controls, move the swing arm cap assembly until it points roughly to
the anchor. See Figure 7.
3. Measure and cut the swing arm to length. Attach swing arm to swing arm cap
assembly with gate stop on driveway side, using supplied hardware or by
welding.
WARNING: Installing gate stop on the wrong side will cause damage to the gate
operator.
4. Measure and cut Drag Link pipe to length, then insert spherical rod end assembly
into pipe and tighten locking nut.
5. Attach welded end of Drag Link Assembly to Anchor and unwelded end to Swing
Arm.
Swing Arm Cap Assembly
Engaged
Quick Disconnect
Release Lever
Disengaged
Figure 7. Gate Arm Installation

RevMFDoc 01-20099 11 of 42
I. SETTING LIMIT CAMS
• Adjust the limit cams by loosening the clamp and rotating the cams. The cams
rotate with the swing arm shaft, so small adjustments are magnified by the length
of the gate.
• Use manual controls to move the gate during limit cam adjustment.
• To avoid damage to the gate and gate operator due to the gate overrunning its
limits, perform the following steps carefully:
1. SETTING RIGHT GATE LIMIT CAMS
Top Limit Switch Bottom Limit Switch
Top Limit Cam Bottom Limit Cam
Open Gate Closed Gate
01-20099F1
Figure 8. Setting Right Gate Limit Cam
1. Make sure that switch S2 is set to the "Right" position.
2. Turn on gate operator power switch.
3. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
4. Loosen the clamp on the bottom limit cam and turn the cam clockwise until it just
barely closes the limit switch.
5. Retighten the clamp. Do not overtighten.
6. Using manual OPEN and STOP, move the gate to its proper open limit position.
7. Loosen the clamp on the top limit cam and turn the cam counterclockwise until it
just barely closes the limit switch.
8. Retighten the clamp. Do not overtighten.
9. Open and close the gate to check the limit cam settings. If required, readjust the
limit cams until they are set properly.

12 of 42 Doc 01-20099 Rev F
2. SETTING LEFT GATE LIMIT CAMS
Top Li mi t S wi tc h Bottom Limit Switch
Top Limit Cam Bottom Limit Cam Open Gate
Closed Gate
01-20099F2
Figure 9. Setting Left Gate Limit Cam
1. Make sure that switch S2 is set to the "Left" position.
2. Turn on gate operator power switch.
3. Using manual OPEN and STOP, move the gate to its proper open limit position.
4. Loosen the clamp on the bottom limit cam and turn the cam clockwise until it just
barely closes the limit switch.
5. Retighten the clamp. Do not overtighten.
6. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
7. Loosen the clamp on the top limit cam and turn the cam counterclockwise until it
just barely closes the limit switch.
8. Retighten the clamp. Do not overtighten.
9. Open and close the gate to check the limit cam settings. If required, readjust the
limit cams until they are set properly.

RevMFDoc 01-20099 13 of 42
J. GATE SENSITIVITY ADJUSTMENTS
The gate operator monitors both average and peak motor current. When the gate
encounters an obstruction, the gate operator senses the change in motor current and
reverses the gate. Three sensitivity adjustments must be set for each installation:
•Right gate motion (R69)
•Left gate motion (R160)
•Inrush current (R203)
NOTE: For swing gate operation, controls are Left/Clockwise and
Right/Counterclockwise.
♦If your installation requires setting switch S2 to the “Open to Right” position, use
the “Open to Right" adjustment procedures below. If your installation requires
setting S2 to the “Open to Left” position, use the “Open to Left" adjustments
following the "Open to Right" procedures.
♦The minimum sensitivity is full clockwise and maximum sensitivity is full counter
clockwise. These adjustments must be made while the gate is in motion.
♦Before starting the adjustments, verify that the Left and Right reverse pots are set
fully clockwise, and the Inrush pot is set to the 11 o’clock position.
♦Make all adjustments in the order listed.
NOTE: Current flow varies with temperature. Do not tune the sensitivity
measurements too finely, or they may cause false overcurrent faults to occur during
cold weather.
Figure 10. Gate Sensitivity Adjustments Location.
"OPEN TO RIGHT" ADJUSTMENT PROCEDURES
Right Gate Motion Adjustment (R69)
1. Initiate opening the gate.
2. Wait 4 to 5 seconds, then lightly "tug" against the edge of the gate to simulate an
obstacle.
3. If the gate does not stop or back up, reclose gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until gate stops or backs up when tugged and has the desired
sensitivity.

14 of 42 Doc 01-20099 Rev F
Left Gate Motion Adjustment (R160)
1. Open the gate fully, then initiate closing the gate.
2. Wait 4 to 5 seconds, then lightly "bump" the leading edge of the gate to simulate
an obstacle.
3. If the gate does not stop or back up, reopen the gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until the gate stops or backs up when bumped and has the
desired sensitivity.
"OPEN TO LEFT" ADJUSTMENT PROCEDURES
Left Gate Motion Adjustment (R160)
1. Initiate opening the gate.
2. Wait 4 to 5 seconds, then lightly "tug" against the edge of the gate to simulate an
obstacle.
3. If the gate does not stop or back up, reclose the gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until the gate stops or backs up when tugged and has the
desired sensitivity.
Right Gate Motion Adjustment (R69)
1. Open the gate fully, then initiate closing the gate.
2. Wait 4 to 5 seconds, then lightly "bump" the leading edge of the gate to simulate
an obstacle.
3. If the gate does not stop or back up, reopen the gate and adjust the pot slightly
counterclockwise.
4. Repeat steps 1-3 until the gate stops or backs up when bumped and has the
desired sensitivity.
INRUSH CURRENT ADJUSTMENT (R203)
1. Turn the pot fully counterclockwise.
2. Open the gate.
3. If the gate stops due to a fault condition, slightly adjust the pot clockwise.
4. Repeat steps 2 and 3 until the gate cycles without a fault.
5. Open gate fully, then initiate closing the gate.
6. If the gate stops or backs up due to a fault condition, slightly adjust the pot
clockwise.
7. Repeat steps 6 and 7 until the gate cycles without a fault and has the desired
sensitivity.