Chamberlain LiftMaster Professional SL540 User manual

CONTROLLER BOARD
GL
Serial # ________________________
(located on electrical box cover)
Installation Date __________________
2 YEAR WARRANTY
MODELS SL540 AND SL570 ARE FOR VEHICULAR PASSAGE GATES ONLY
AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
MODEL SL540
MEDIUM DUTY SLIDE GATE OPERATOR
MODEL SL570
HEAVY DUTY, SLIDE GATE OPERATOR

2
TABLE OF CONTENTS
IMPORTANT NOTE
• BEFORE attempting to install, operate or maintain the operator,
you MUST read and fully understand this manual and follow all
safety instructions.
• These instructions are intended to highlight certain safety
related issues. These instructions are not intended to be
comprehensive. Because each application is unique, it is the
responsibility of the purchaser, designer, installer and end user
to ensure that the total gate system is safe for its intended use.
OPERATOR SPECIFICATIONS
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Gate Speed and Horsepower Chart . . . . . . . . . . . . . . . . . . . . . . .3
Operator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
UL325 Model Classifications . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
OPERATOR WARNINGS
Gate Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Safety Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . .7
Safety Label Placement / Warnings and Precautions . . . . . . . . .8
Safety Precautions for Open Roller Gates . . . . . . . . . . . . . . . . . .9
Safety Precautions for Grill Type Gates . . . . . . . . . . . . . . . . . . . .9
OPERATOR MOUNTING
Pad Mounting (SL540 & SL570) . . . . . . . . . . . . . . . . . . . . . . . .10
Post Mounting (SL540 & SL570) . . . . . . . . . . . . . . . . . . . . . . .11
Gate Bracket and Drive Chain Installation . . . . . . . . . . . . . . . . .12
MECHANICAL OPERATOR FEATURES
Manual Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
OPERATOR WIRING & PROGRAMMING
Install Power Wiring & Control Station . . . . . . . . . . . . . . . . . . .14
Wiring Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Disconnect Switch Power Wiring . . . . . . . . . . . . . . . . . . . . . . .15
Stop/Reset Button Control Wiring . . . . . . . . . . . . . . . . . . . . . . .15
Limit Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Programming The Radio Receiver . . . . . . . . . . . . . . . . . . . . . . .16
Sequence Access Management System . . . . . . . . . . . . . . . . . .17
Optional Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19
Control Board Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Controller Programming and Features . . . . . . . . . . . . . . . . . . . .21
Program Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23
Pressure Type Slipping Clutch . . . . . . . . . . . . . . . . . . . . . . . . . .24
Solenoid Actuated Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-26
Hall Effect Sensor Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .27
Operator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Repair Parts Kits (Electrical Box) . . . . . . . . . . . . . . . . . . . . . . . .29
Variable Parts List (SL540 & SL570) . . . . . . . . . . . . . . . . . . . .29
Illustrated Parts (Control Box) . . . . . . . . . . . . . . . . . . . . . . . . . .30
Repair Parts (SL540 & SL570) . . . . . . . . . . . . . . . . . . . . . . . . .31
Illustrated Parts (SL540 & SL570) . . . . . . . . . . . . . . . . . . . . . .32
Single Phase Wiring Diagram (SL540 & SL570) . . . . . . . . . . . .33
Three Phase Wiring Diagram (SL570) . . . . . . . . . . . . . . . . . . . .34
Warranty Policy / Repair Parts and Service . . . . . . . . . . . . . . . .35
Control Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . .36
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will
alert you to the possibility of damage to your gate and/or the gate
operator if you do not comply with the cautionary statements that
accompany it. Read them carefully.
Mechanical
Electrical
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION WARNING
WARNING
2
CARTON INVENTORY
Before beginning your installation check that all components
were supplied and received undamaged. Refer to list below for
factory supplied parts.
Part No. Description Qty.
01-G0582 Gate Safety Brochure 1
02-401-SP PBS, Stop Button 1
10-3209 Gate Bracket 2
19-3020 Nickel Plated Chain #40 1
19-3025 Nickel Plated Chain #50 (SL570 Only) 1
19-40001M Master Link #40 2
19-50MLNP Master Link #50 (SL570 Only) 2
40-3505 Warning Sign 2
80-3001 U-bolt, 2", 5/16-18 4
80-3002 U-bolt, 3", 3/8-16 4
MG6400035 Flat Washer 7/16" 4
84-RH-38 Hex Nut 3/8-16 8
85-LS-31 Lock Washer 5/16" 8
85-LS-38 Lock Washer 3/8" 8
MG3100878 Eyebolt, #40/#50 Chain 2
MG6100113 Hex Nut 5/16-18 8
MG6100117 Hex Nut 7/16-14 4
82-QN43-12 Square Head Set Screw 7/16-14 4
85-FW-38S Flat Washer 3/8" 8
MG6400035 Flat Washer 7/16" 4
85-LS-43 Spring Washer 7/16" 4
HARDWARE KIT
SL540 (K77-SL540) & SL570 (K77-SL570)

3
28-1/4 "
16 "
13-1/2 "
22 "
27-1/4 "
15-3/8 "
7-3/8 "
2 "
8-1/2 "
17-3/8 "
MODELS SL540 & SL570
GATE SPEED AND HORSEPOWER CHART
MODEL SL540
"1/3 HP Motor
Gate Speed – 12"/sec.
Maximum Gate Weight – 550 lbs.
Maximum Cantilever Gate Width – 16 ft.
Maximum Overhead Roller Gate Width – 24 ft.
Maximum V-Track Gate Width – 20 ft.
"1/2 HP Motor
Gate Speed – 12"/sec.
Maximum Gate Weight – 900 lbs.
Maximum Cantilever Gate Width – 20 ft.
Maximum Overhead Roller Gate Width – 36 ft.
Maximum V-Track Gate Width – 26 ft.
MODEL SL570
"1/2 HP Motor
Gate Speed – 12"/sec.
Maximum Gate Weight – 1200 lbs.
Maximum Cantilever Gate Width – 25 ft.
Maximum Overhead Roller Gate Width – 40 ft.
Maximum V-Track Gate Width – 30 ft.
"3/4 HP Motor
Gate Speed – 12"/sec.
Maximum Gate Weight – 1500 lbs.
Maximum Cantilever Gate Width – 30 ft.
Maximum Overhead Roller Gate Width – 45 ft.
Maximum V-Track Gate Width – 45 ft.
"1 HP Motor
Gate Speed – 12"/sec.
Maximum Gate Weight – 1800 lbs.
Maximum Cantilever Gate Width – 32 ft.
Maximum Overhead Roller Gate Width – 50 ft.
Maximum V-Track Gate Width – 48 ft.
OPERATOR DIMENSIONS

4
CLASS I – RESIDENTIAL VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a home of one-to four single family
dwellings, or a garage or parking area associated therewith.
CLASS II – COMMERCIAL/GENERAL ACCESS VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a commercial location or building such
as a multi-family housing unit (five or more single family units), hotel, garage, retail store or other
building servicing the general public.
CLASS III – INDUSTRIAL/LIMITED ACCESS VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in an industrial location or building such as
a factory, loading dock area or other location not intended to service the general public.
CLASS IV – RESTRICTED ACCESS VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a guarded industrial location or building
such as an airport security area or other restricted access locations not servicing the general
public, in which unauthorized access is prevented via supervision by security personnel.
UL325 MODEL CLASSIFICATIONS
MODEL
SL570
SL540
CLASS 1 CLASS 2 CLASS 3 CLASS 4
####
####
NOTE: Models SL540 and SL570 meet the following specifications

5
SAFETY ACCESSORY SELECTION
All UL325 compliant LiftMaster gate operators will accept external
entrapment protection devices to protect people from motorized
gate systems. UL325 requires that the type of entrapment
protection correctly matches each gate application. Below are the
six types of entrapment protection recognized by UL325 for use
on this operator.
ENTRAPMENT PROTECTION TYPES
Type A: Inherent obstruction sensing system, self-contained
within the operator. This system must sense and initiate
the reverse of the gate within two seconds of contact
with a solid object.
Type B1: Connections provided for a non-contact device, such as
a photo eye can be used as a secondary protection.
Type B2: Connections provided for a contact sensor. A contact
device such as a gate edge can be used for secondary
protection.
Type C: Inherent adjustable clutch or pressure relief valve.
Type D: Connections provided for a control requiring continuous
pressure to operate the operator open and close.
Type E: Built-in audio alarm. Examples
include sirens, horns or buzzers.
NOTE: UL requires that all installations must
have warning signs placed in plain view on
both sides of the gate to warn pedestrians of
the dangers of motorized gate systems. Many
signs and labels are included with each
operator.
This document is current with the UL325 specification at the
time of printing. However, please check the most current
version of UL325 for update information.
UL325 ENTRAPMENT PROTECTION REQUIREMENTS
The chart above illustrates the entrapment protection
requirements for each of the four UL325 classes. (For more
information on UL325 classes, refer to the previous page.)
In order to complete a proper installation you must satisfy the
entrapment protection chart shown above. That means that
the installation must have one primary means of entrapment
protection and one independent secondary means of
entrapment protection. Both primary and secondary
entrapment protection methods must be designed, arranged
or configured to protect against entrapments in both the open
and close directions of gate travel.
For Example: For a slide gate system that is installed on a
single-family residence (UL325 Class I) you must provide the
following: As your primary type of entrapment protection you
must provide Type A inherent (built into the operator)
entrapment sensing and at least one of the following as your
secondary entrapment protection:
• Type B1 - Non-contact sensors such as photo-eyes
• Type B2 - Contact sensors such as gate edges or
• Type D - Constant pressure control
GATE OPERATOR ENTRAPMENT PROTECTION
Class
I & II
Class III
Class IV A, B1, C
or D
A, B1, C,
D or E
A, B1, B2,
D or E
A, B1, B2
or D
A, B1, B2
or B2
A, B1, D
or E
A, B1, C
or C
A, B1, C or
DA, B1
A or C
B1, B2
or D
A
UL325 Slide Gate Operator Swing & Gate Barrier
Installation (Arm) Operator
Class Primary
Type
Secondary
Type
Secondary
Type
Primary
Type
D or E
Moving Gate Can Cause
Injury or Death
KEEP CLEAR! Gate may move at any
time without prior warning.
Do not let children operate the gate or
play in the gate area.
This entrance is for vehicles only.
Pedestrians must use separate entrance
UL325 MODEL CLASSIFICATIONS cont’d

6
1-1/2"
1/4" Or As Required
For Loop Wire Width
STREET
COMPLEX
OR
PARKING LOT
4'
Typical
4'
Typical
Run Twisted Wire
From Loop
To Detector
Seal Loops
Loop Wire
Layer
Interrupt
Loop
Interrupt
Loop
Photo Eye For
Open Cycle
Photo Eye For
Close Cycle
8'
4'
Open
Edge
Close
Edge
Telephone
Entry System
4'
Typical
1-1/2"
1/4" Or As Required
For Loop Wire Width
6"
Interrupt
Loop
Interrupt
Loop
4'
Typical
Seal Loops*
Loop Wire*
Layer
12'
6'
Close
Edge
Second
Unit
Open
Edge
Photo Eyes
For Close Cycle
4'
Typical
4'
Typical
Open
Edge
Photo Eyes For
Open Cycle
Run Twisted Wire*
From Loop
To Operator
Street
Complex
Or
Parking Lot
Master
Unit
*REFER TO LOOP MANUFACTURER’S INSTRUCTIONS FOR DETAILED INSTALLATION & LOOP WIRING INSTRUCTIONS.
GATE SYSTEM (COMMERCIAL SLIDE GATE)
GATE SYSTEM (MASTER/SECOND SLIDE GATE)

7
1. Vehicular gate systems provide convenience and security. Gate systems are comprised of many component parts. The gate
operator is only one component. Each gate system is specifically designed for an individual application.
2. Gate operating system designers, installers and users must take into account the possible hazards associated with each individual
application. Improperly designed, installed or maintained systems can create risks for the user as well as the bystander. Gate
systems design and installation must reduce public exposure to potential hazards.
3. A gate operator can create high levels of force in its function as a component part of a gate system. Therefore, safety features
must be incorporated into every design. Specific safety features include:
•Gate Edges •Guards for exposed rollers •Photoelectric Sensors •Screen Mesh
•Enclosed Track •Vertical Posts •Instructional and Precautionary Signage
4. Install the gate operator only when:
a. The operator is appropriate for the construction and the usage class of the gate.
b. All openings of a horizontal slide gate are guarded or screened from the bottom of the gate to a minimum of 4' (1.2 m) above
the ground to prevent a 2-1/4" (57.15 mm) diameter sphere from passing through the openings anywhere in the gate, and in
that portion of the adjacent fence that the gate covers in the open position.
c. All exposed pinch points are eliminated or guarded, and guarding is supplied for exposed rollers.
5. The operator is intended for installation only on gates used for vehicles. Pedestrians must be supplied with a separate access
opening.
6. The gate must be installed in a location so that enough clearance is supplied between the gate and adjacent structures when
opening and closing to reduce the risk of entrapment.
7. The gate must be properly installed and work freely in both directions prior to the installation of the gate operator.
8. Controls must be far enough from the gate so that the user is prevented from coming in contact with the gate while operating the
controls.
9. Controls intended to be used to reset an operator after 2 sequential activations of the entrapment protection device or devices
must be located in the line of sight of the gate, or easily accessible controls shall have a security feature to prevent unauthorized
use.
10. All warning signs and placards must be installed where visible in the area of the gate.
11. For a gate operator utilizing a non-contact sensor:
a. See instructions on the placement of non-contact sensor for each type of application.
b. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the sensor while the gate is still
moving.
c. One or more non-contact sensors shall be located where the risk of entrapment or obstruction exists, such as the perimeter
reachable by a moving gate or barrier.
12. For a gate operator utilizing a contact sensor such as an edge sensor:
a. One or more contact sensors shall be located at the leading edge, trailing edge and post mounted both inside and outside of a
vehicular horizontal slide gate.
b. One or more contact sensors shall be located at the bottom edge of a vehicular vertical lift gate.
c. One or more contact sensors shall be located at the pinch point of a vehicular vertical pivot gate.
d. A hard wired contact sensor shall be located and its wiring arranged so the communication between the sensor and the gate
operator is not subject to mechanical damage.
e. A wireless contact sensor such as the one that transmits radio frequency (RF) signals to the gate operator for entrapment
protection functions shall be located where the transmission of the signals are not obstructed or impeded by building
structures, natural landscaping or similar obstruction. A wireless contact sensor shall function under the intended end-use
conditions.
SAFETY INSTALLATION INFORMATION

8
The UL required Warning Signs must be installed in plain view and on
both sides of each gate installed. Each sign is made with fastening
holes in each corner and should be permanently secured in a suitable
manner. Warning label on unit should be visible.
NOT FOR USE AS PEDESTRIAN PASSAGE!
DO NOT MOUNT ACCESSORIES THAT ARE ACCESSIBLE THROUGH GATE!
SAFETY LABEL PLACEMENT
WARNINGS AND PRECAUTIONS
Moving Gate Can Cause
Injury or Death
KEEP CLEAR! Gate may move at any
time without prior warning.
Do not let children operate the gate or
play in the gate area.
This entrance is for vehicles only.
Pedestrians must use separate entrance

9
Injuries occur when people get their hands or feet caught between the top or bottom of the gate and the gate roller. This
potential pinch-point should be guarded against at all times. Enclosed style gate tracks are available for refitting of these
rollers from many fence suppliers. Also, roller guards are available for installing over the rollers.
UL325 requires that, when used, contact sensors shall be located at the leading edge, trailing edge, and post-mounted both
inside and outside of a vehicular horizontal slide gate. Non-contact sensors such as photo eyes must protect during both
open and close gate cycles.
Gate Edge
On Rear
Of Gate
For Open
Direction
Gate Edge On Fence
Post For Open Direction
Unit
Gate Edge On Leading Edge Of Gate
For Close Direction
Photo Beam
For Close
Direction
Additional Post Mounted Gate
Edge For Open Direction
Additional Post Mounted Gate
Edge For Close Direction
Photo Beam
For Open
Direction
Gate Edge
For Open
Direction
Vertical Post Placed On Both
Sides Of The Exposed Rollers
Can Prevent Hands From
Reaching These Pinch Points
Pinch Point
Hazard
Always Test Gate Edges And
Photo Beams Anytime They Are
Adjusted Or Serviced
Gate Edge
Pinch Point
Hazard
Gate Edge
For Open
Direction
Gate Edge
For Close
Direction
Gate Edge
For Close
Direction
Roller Guard
Roller Guard
Injuries occur when people put their hands and arms through openings in the grill while the gate is operating. They cannot
retract their arm and it gets caught between the moving gate grill and the stationary fence post or fence. This potential
hazard can be averted by placing a 4' screen mesh on the gate to prevent access through openings anywhere the gate may
travel. See Safety Brochure for details.
TB TB
TB TB
Close Gate Edge
(Close TB10)
Open Gate Edge
(Open TB9)
Unit
Close Photo Beam
(Close TB10) Open Photo Beam
(Open TB9)
or
or
SAFETY PRECAUTIONS FOR OPEN ROLLER GATES
SAFETY PRECAUTIONS FOR ORNAMENT “GRILL TYPE” GATES

10
8-1/2"
22"
5"
7"
36"
18"
Fence Line
Rear Of Gate
or Back Frame
CONCRETE PAD PREPARATION
NOTE: For the following instructions refer to Figures 1 and 2.
1. Lay out concrete pad as detailed in Figure 1.
2. Locate electrical conduit, as required, prior to pouring
concrete.
3. Pour concrete pad
4. Secure operator to the concrete pad using (4) 1/2" concrete
anchoring bolts (not provided).
Figure 1
Figure 2
Depth Required
By Local Codes or
Below Frost Line
2" To 4"
Above Grade
Concrete
Pad
1/2" Concrete Anchoring
Bolts (4 Required) Power And Control Wiring
Should Be Run In Seperate Conduit
Drive And Idler
Sprocket Toward
Gate Side
Using Suitable
Hardware Secure
Operator To L-bolts
PAD MOUNTING (SL540 & SL570)

11
3" U-bolt
(4 Required)
Power And Control Wiring
Should Be Run In Separate Conduit
Gate Side
Sprocket Toward
Drive And Idler
Angle
Bracket
POST PREPARATION
NOTE: For the following instructions refer to Figures 1 and 2.
1. Locate and anchor two posts made of 3" outer diameter heavy
walled pipe. Posts should be parallel and square to the gate
(Figure 1).
2. Remove the mounting angles from base of the operator. Use
the angles as a guide for proper distance between posts.
Secure the angles to the posts using U-bolts, supplied.
3. Locate electrical conduit, as required, prior to pouring
concrete.
4. After concrete has set, remove angle brackets from post and
install them on operator.
5. Secure operator to posts using (4) 3" U-bolts and hardware
supplied (Figure 2).
3" U-bolts
Figure 1
Figure 2
Gate
Outside To Outside
Fence Line
26"6"
3" Outside
Diameter
Heavy Wall
Fence Pipe
7-3/4"
End Post
Ground
Level
Local Codes Or Below
Depth As Required By
14" Min.
Frost Line
L
C
POST MOUNTING (SL540 & SL570)

12
"Inside"
Gate
"Outside"
Gate Bracket
2" U-bolts
With Lock
Washers
& Nuts
Anti-rotation
Set Screw
FIGURE 1
* *
*Gate brackets must be level and centered
with bottom of idler sprocket
Gate Post (Typ.)
Gate Bracket (Typ.)
Safety Bracket
Insert chain through plastic guides
FIGURE 2
1. Mount gate brackets to the vertical front and rear posts of the
gate (Figure 1).
2. Remove the operator cover or open access door.
3. Locate and engage the manual disconnect and lock it in place
(refer to page 13).
4. Connect chain take-up bolt to the end of the chain and attach
to the rear gate bracket (Figure 2).
5. Ensure that the drive and idler sprockets are in line with each
other. Thread the chain through the plastic chain guide,
around drive and idler sprockets, and then through the
second plastic chain guide toward front gate bracket
(Figure 3).
6. Adjust the chain to proper length and attach second take-up
bolt to chain end. Secure the take-up bolt to the front gate
bracket as shown.
Adjust nuts on chain take-up bolts to remove chain slack. A
general rule of thumb is to leave a maximum of 1" of chain slack
for every 10' of chain length.
Do not overtighten chain.
NOTE ABOUT SOME TYPES OF CANTILEVER GATES:
With some cantilever gates over 20' long, you may need to add a
brace along the length of the gate to prevent the gate from
bowing when chain is tightened. This may also be required on
some styles of gates that are constructed out of aluminum. Note
that if positioned properly, this brace can also be used as a chain
support.
FIGURE 3
GATE BRACKET & DRIVE CHAIN INSTALLATION
When pulling the chain through the operator, the limit shaft
will turn. DO NOT drive the limit (nuts) actuators on this shaft
past their normal positions.
WARNING
CAUTION WARNING
WARNING

13
NOTE: When the operator is under load, you may find it necessary to relieve the tension on the drive chain before disengaging the
system.
Disconnect
MODELS SL540 & SL570
DISENGAGEMENT: Remove cover and pull the lever
outwards away from the frame. The
gate may now be moved manually.
RE-ENGAGEMENT: Push the lever back towards the frame.
MANUAL DISCONNECT

14
POWER WIRING INSTALLATION
Wiring Specifications (STRANDED COPPER WIRE)
On a Dual Gate System, each unit must be installed on ITS OWN separate circuits
NOTE: Calculated using NEC guidelines. Local codes and conditions must be reviewed for suitability of wire installation. All power
wiring should be dedicated and protected. Location of primary power disconnect should be labeled.
INSTALL POWER WIRING & CONTROL STATION
WIRING SPECIFICATIONS
ANY maintenance to the operator or in the area near the operator
MUST not be performed until DISCONNECTING the electrical power
and locking-out the power via the operator power switch. Upon
completion of maintenance the area MUST be cleared and secured, at
that time the unit may be returned to service.
WARNING
CAUTION WARNING
WARNING
DISCONNECT power at the fuse box BEFORE proceeding.
Operator MUST be properly grounded and connected in accordance
with local electrical codes. NOTE: The operator should be on a
separate fused line of adequate capacity.
ALL electrical connections MUST be made by a qualified individual.
WARNING
CAUTION WARNING
WARNING
BEFORE installing power wiring or control stations be sure to follow
all specifications and warnings described below. Failure to do so may
result in SEVERE INJURY to persons and/or damage to operator.
WARNING
CAUTION WARNING
WARNING
DO NOT install any wiring or attempt to run the operator without
consulting the wiring diagram. We recommend that you install an
optional reversing edge BEFORE proceeding with the control station
installation.
WARNING
CAUTION WARNING
WARNING
4263 ft. 12789 ft. 31974 ft.
2557 ft. 12789 ft. 15987 ft.
1827 ft. 6394 ft. 10657 ft.
1278 ft. 5115 ft. 7993 ft.
2671 ft. 8072 ft. 20179 ft.
1614 ft. 8072 ft. 10089 ft.
1152 ft. 4035 ft. 6726 ft.
807 ft. 3228 ft. 5044 ft.
1688 ft. 5064 ft. 12661 ft.
1012 ft. 5064 ft. 6330 ft.
723 ft. 2532 ft. 4220 ft.
506 ft. 2025 ft. 3165 ft.
1057 ft. 3171 ft. 7929 ft.
634 ft. 3171 ft. 3964 ft.
503 ft. 1585 ft. 2643 ft.
316 ft. 1269 ft. 1982 ft.
615 ft. 2769 ft.
425 ft. 1845 ft.
291 ft. 1107 ft.
213 ft. 852 ft.
388 ft. 1747 ft.
269 ft. 1165 ft.
183 ft. 699 ft.
134 ft. 537 ft.
243 ft. 1096 ft.
168 ft. 730 ft.
115 ft. 438 ft.
84 ft. 337 ft.
170 ft. 686 ft.
105 ft. 458 ft.
72 ft. 274 ft.
53 ft. 211 ft.
WIRE GAUGE 6
"1/3 HP Motor ––––––––
"1/2 HP Motor ––––––––
"3/4 HP Motor ––––––––
"1 HP Motor ––––––––––
WIRE GAUGE 8
"1/3 HP Motor ––––––––
"1/2 HP Motor ––––––––
"3/4 HP Motor ––––––––
"1 HP Motor ––––––––––
WIRE GAUGE 10
"1/3 HP Motor ––––––––
"1/2 HP Motor ––––––––
"3/4 HP Motor ––––––––
"1 HP Motor ––––––––––
WIRE GAUGE 12
"1/3 HP Motor ––––––––
"1/2 HP Motor ––––––––
"3/4 HP Motor ––––––––
"1 HP Motor ––––––––––
SINGLE PHASE
115 Vac 230 Vac
THREE PHASE
230 Vac 460 Vac 575 Vac

Hall Effect
(RPM
Sensor)
Limit Nut
Close when L.H.
Open when R.H.
Limit Nut
Close when L.H.
Open when R.H.
Limit Switch
Open when L.H.
Close when R.H.
Limit Switch
Close when L.H.
Open when R.H.
1. By using the mechanical disconnect, manually open the gate to
its full open position.
2. Remove control panel cover and locate the rotary limit switch
assembly. Disengage the detent plate from the limit nuts, as
shown.
3. Depending on “hand” of the operator, rotate the open limit nut
until it makes contact with the open limit switch lever and trips
the open limit switch activation button.
4. Adjust the other limit nut so that it is near the open limit nut
but not touching.
5. Manually close the gate to its full closed position.
6. Disengage the detent plate and rotate the close limit nut until it
makes contact with the close limit switch lever and trips the
close switch.
7. Re-engage the detent plate into both limit nuts and also
re-engage the mechanical disconnect.
15
Important: On three phase operators, power connections must
be properly phased. If phased incorrectly, the gate operator will
run backwards. To correct this situation, shut off power at main
power source and at the operator’s electrical disconnect switch.
Then reverse any two of the three power leads.
NOTE: Before running power wiring refer to wiring specifications
on page 14 for correct wire gauges.
Secure all electrical power connections inside the disconnect
switch electrical box. Refer to electrical wiring diagram on pages
33 and 34.
Cover
ON/OFF Switch
Wire Nut Connections
(See Instructions)
MAKE SURE THE LIMIT NUTS ARE POSITIONED BETWEEN THE LIMIT SWITCH ACTUATORS BEFORE PROCEEDING WITH ADJUSTMENTS.
All single phase operators will have the following:
115V 230V
"L1 (NEUTRAL), WHITE "L1 (HOT), BLACK
"L2 (HOT), BLACK "L2 (HOT), BLACK
"GROUND, GREEN "GROUND, GREEN
SINGLEPHASE
All three phase operators will have the following:
"L1 (HOT), BLACK
"L2 (HOT), BLACK
"L3 (HOT), BLACK
"GROUND, GREEN
THREEPHASE
1. This control will function as a Stop/Reset command and is to
be wired within line of sight of the gate. The operator will not
function unless this circuit is completed.
2. Wire Stop/Reset control station to terminals 3 and 5 in the
control box on the operator.
TERMINAL BLOCK
STOP/RESET BUTTONWIRING
STOP/RESET
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NOTE: For optional control station options refer to pages
18 and 19.
MODEL SL540/SL570 LIMIT ASSEMBLY
DISCONNECT SWITCH POWER WIRING
STOP/RESET BUTTON CONTROL WIRING (REQUIRED)
LIMIT SWITCH ADJUSTMENT
To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution,
DISCONNECT electric power BEFORE manually moving limit nuts.
WARNING
CAUTION WARNING
WARNING
STOP/RESET
Button
Control Conduit

SET SECURITY MODE
The Universal Receiver can be used with up to 15 rolling code
transmitters or passwords in HIGH security mode. Alternately, it
can be used with up to 31 of any type transmitter in NORMAL
security mode, including any combination of rolling code, billion
code, or dip switch remotes.
The jumper must be set at the HIGH position for the receiver to
operate in HIGH security mode. It must be set at NORMAL
position to operate at the NORMAL mode (Figure 1).
When changing from NORMAL to HIGH security mode, any
previous transmitter codes must be erased. Repeat Steps 2 and 3
in the Programming Section below to reprogram the receiver for
each remote control transmitter in use.
The receiver is factory set at HIGH.
SET OUTPUT DURATION
For commercial applications, the receiver can be set for either
constant or momentary closure on the output contacts. Use of
constant closure is prohibited on residential garage door openers
because it overrides the safety reversal devices.
With the jumper in the “M” (Momentary) position, the contacts
will close for 1/4 second regardless of the length of radio
transmission. With the jumper in “C” (Constant) position, the
contacts will stay closed as long as the radio continues
transmitting (Figure 2).
The receiver is factory set at M.
PROGRAMMING THE REMOTE TO THE RECEIVER
1. Pry open the front panel of receiver case with a coin or a
screwdriver. Re-connect power to opener (Figure 3).
2. Press and release the “learn” button on the receiver. The learn
indicator light will glow steadily for 30 seconds.
3. Within 30 seconds, press and hold the button on the hand-held
remote that you wish to operate your garage door.
The opener will now operate when the push button on either the
receiver or the remote control transmitter is pressed.
Repeat Steps 2 and 3 for each remote control that will be used to
operate the garage door opener.
TO ERASE ALL REMOTE CONTROL CODES
Press and hold the “learn” button on the receiver panel until the
indicator light turns off (about 6 seconds). All transmitter codes
are now erased. Then follow the steps above to reprogram each
remote control.
HIGH
SECURITY MODE
Security Mode
Terminals
Jumper
Output
Duration
Terminals
Jumper
M
CONSTANT
OPERATION
NORMAL
SECURITY MODE
Security Mode
Terminals
Jumper
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
Output
Duration
Terminals
Jumper
M
MOMENTARY
OPERATION
OPENING RECEIVER
Connect
Antenna
24V 12V
HIGH
NORM
C
P2
M
Learn Button
Indicator Light
Output Duration
Terminals
Security Mode
Power Supply
Jumper
OPEN RECEIVER
Figure 1
Figure 2
Figure 3
16
PROGRAMMING THE RADIO RECEIVER
To prevent possible SERIOUS INJURY or DEATH from electrocution:
• Be sure power is not connected BEFORE installing the receiver.
To prevent possible SERIOUS INJURY or DEATH from a moving gate
or garage door:
• ALWAYS keep remote controls out of reach of children. NEVER
permit children to operate, or play with remote control transmitters.
• Activate gate or door ONLY when it can be seen clearly, is properly
adjusted, and there are no obstructions to door travel.
• ALWAYS keep gate or garage door in sight until completely closed.
NEVER permit anyone to cross path of moving gate or door.
WARNING
CAUTION WARNING
WARNING
To prevent possible SERIOUS INJURY or DEATH, the use of
CONSTANT OPERATION on residential openers is PROHIBITED.
WARNING
CAUTION WARNING
WARNING

Street
COMPLEX
or
PARKING LOT
BG770
BG770
TRAFFIC
SAMS
Conduit
HoldOpen Loop
Interrupt Loop
SAMS OPERATION
1) When an authorized vehicle accesses the gate system, the
SAM system responds by first opening the gate farthest from
the vehicle, the swing or slide gate.
2) Once the swing or slide gate is open, the barrier gate begins
its open cycle.
3) Once the barrier is open the vehicle may pass through the
SAM system. At this point you have two options in how you
would like to initiate the SAM systems closure. You may chose
to:
a) Use a timer to close system to automatically close the
barrier gate after a preset amount of time or
b) Use a loop system to close the barrier gate after the vehicle
has passed through the SAM system.
4) Once the barrier gate is closed the slide or swing gate will
activate its internal timer to close and begin closing.
5) If another authorized vehicle accesses the SAM system before
the slide or swing begins to close the barrier will open and
allow the vehicle to pass through the SAM system.
6) If another authorized vehicle accesses the SAM system during
the slide or swing gates closing cycle the SAM system will
reopen the slide or swing gate. Once the slide or swing gate
reaches the open position the barrier will then open to allow
the vehicle to pass through the SAM system.
7) If no other authorized vehicles access the SAM system the
swing or slide gate will close followed by the barrier.
SAMS DEFINITION
The Sequenced Access Management System or SAMS allows the customer more control when managing vehicular entrances to areas
such as apartment complexes, businesses and gated communities. The basic concept of the system is that traffic is controlled by two
gates installed in tandem, a fast moving gate such as a barrier gate operator and a slower moving more secure or ornamental gate
such as a single or pair of slide/swing gate operator. The design of this gate system balances the demands of speed during high traffic
periods with security during low traffic periods. Barrier gates typically have the fastest open times of the many gate operator types and
the slide or swing gates allow you to effectively seal off the perimeter of the complex you are planning to secure.
NOTE: Connect all entry devices to the slide or swing gate. If using a device, such as a 7-day timer, to latch the slide or swing gate
open during high traffic times, connect the device’s N/O relay output to the GL board’s Interrupt Loop input. Once the device activates
the Interrupt Loop input, the next vehicle to access the SAM system will lock the gate in the open position until the device deactivates.
When the device deactivates, the timer to close will automatically close and secure the gate.
SAMS WIRING
1) Install conduit between the BG770 and the SL540/570 for
SAMS control wiring.
2) Run a 4-conductor cable in the conduit between the BG770
SL540/570.
3) Locate the SAMS relay terminals (J5) on the GL board in the
SL540/570 and locate the auxiliary limit switch in the BG770.
4) Attach a wire from the SAMS relay terminal (J5) on the GL
board to terminal 1 on the BG770 terminal strip.
5) Attach a wire from the SAMS relay terminal (J5) on the GL
board to terminal 3 on the BG770 barrier gates terminal strip.
6) Attach a wire from terminal 5 of the terminal block to the
common (COM) on the auxiliary limit switch in the barrier
gate.
7) Attach a wire from terminal 8 of the terminal block to the
normally open (NO) on the auxiliary limit switch.
8) Test for correct functionality of the SAM system.
1 (OPEN)
3 (COMMON)
Auxiliary Limit Switch
N/O
COM
Interrupt Loop Input
TB5
TB8
SAMS Relay At J5
N/O
COM
BG770 Barrier Gate
Terminal Block
Terminal Strip
17
SAMS (SEQUENCED ACCESS MANAGEMENT SYSTEM)

All inputs are normally open and momentary, except the stop (N.C.). The following instructions are based upon UL325, and include
recommendations for significant increase in safety.
We strongly recommend that you follow the UL guidelines presented throughout the manual. Refer to instructions shipped with
optional control devices for mounting, wiring, programming and adjustment.
Terminals 1 and 5 - Residential Radio (single button) Input
These terminals are intended for use with a radio receiver in a
residential application or as a single button control. This allows
the user to open the gate by activating the transmitter when the
gate is closed or between limits. This input also gives the user
the ability to close the gate by activating the transmitter when the
gate is on the open limit.
Terminals 2 and 5 - Shadow Loop Input
These terminals are intended for use with a loop detector and are
primarily used on swing gate operators. This input protects cars
by preventing the gate from moving off of the open or close limit
when the shadow loop input is active.
Terminals 6 and 5 - Soft Open
These terminals are intended for use as a general open control.
Accessories that may be wired to this input include: Telephone
Entry Systems, Radio Receiver (Commercial Applications), Exit
Loop Detector, Keypads, 7-Day Timer.
Note: Will not override a double entrapment (signalled by the
gate stopped and entrapment alarm on).
Terminals 8 and 5 - Interrupt (Safety) Loop Input
These terminals are intended for use with a loop detector. This
input functions to reverse a closing gate to the open limit.
Latching this input will reset the timer to close.
ONE BUTTONWIRING
12345678910
3
6
9
#
2
5
8
0
1
7
FREQ
FREQ
FREQ
Control Box
Terminal Block
12345678910
24Vac Accessory Power
Can be found at terminals R1 and R2 located on
radio terminal block.
R2
R1 R4 R3
24 Vac
SHADOWLOOP INPUT
12345678910
SOFT OPEN
12345678910
INTERRUPT (SAFETY) LOOP INPUT
12345678910
18
OPTIONAL CONTROL DEVICES

Terminals 9 and 5 - Obstruction Open (Edge/ Photo Eye Input)
Edge Input: See Programming Section
This input will reverse an opening gate to the close limit.
Activating this input when the gate is closing will have no effect.
NOTE: If upon reversal a second seperate obstruction is detected
(gate edge or RPM sensor), gate will stop and alarm.
Photo Eye Input: See Programming Section
This input will pause an opening gate. Once the input (photo eye)
is cleared, the gate continues to open. Activating this input when
the gate is closing will have no effect.
Terminals 10 and 5 - Obstruction Close (Edge/ Photo Eye Input)
Edge Input: See Programming Section
This input will reverse a closing gate to the open limit. When
reaching the open limit the timer to close, if enabled, will be
disabled until another command is given. Activating this input
when the gate is closing will have no effect. NOTE: If upon
reversal a second seperate obstruction is detected (gate edge or
RPM sensor), gate will stop and alarm.
Photo Eye Input: See Programming Section
This input will reverse a closing gate to the open limit. This input
will not affect the timer to close. Activating this input when the
gate is closing will have no effect.
Terminals 3 and 5 - Stop/Reset Control Input
These terminals are intended for use with a single stop/reset
button or the stop control of a three-button station that is
installed within line of site of the gate. This input functions to
stop the gate or to reset the gate after an entrapment fault.
NOTE: This input uses a normally closed circuit and the operator
will not run until a stop control is installed.
Terminals 4 and 5 - Hard Close Control Input
These terminals are intended for use only with the close control
of a three-button station that is installed within line of sight of the
gate. A momentary activation of this input will cause the gate to
close. Activation of this input for longer than three seconds will
enable the control to be used as a constant pressure override
device. This will allow the user, in emergencies, to override a
failed accessory such as a loop detector or photo-eye.
Terminals 7 and 5 - Hard Open Control Input
These terminals are intended for use only with the open control of
a three-button station that is installed within line of sight of the
gate. A momentary activation of this input will cause the gate to
open. Activation of this input for longer than three seconds will
enable the control to be used as a constant pressure override
device. This will allow the user, in emergencies, to override a
failed accessory such as a loop detector or photo-eye.
OBSTRUCTION OPEN (EDGE/PHOTO EYE INPUT)
12345678910
OPEN
CLOSE
STOP
STOP
OPEN
CLOSE
STOP
CLOSE
OPEN
CLOSE
STOP
OPEN
OBSTRUCTION CLOSE (EDGE/PHOTO EYE INPUT)
12345678910
STOP/RESET CONTROL INPUT
12345678910
HARD CLOSE CONTROL INPUT
12345678910
HARD OPEN CONROL INPUT
12345678910
19
OPTIONAL CONTROL DEVICES cont’d

20
Motor Learn
Button
Programming
Port
(factory use only)
Relay Drive
Troubleshooting LEDs
J1 Terminal
Troubleshooting LEDs
Limit
LEDs
Dip Switch #1
Diagnostic
LED
Dip Switch #2
Potentiometer
Force Adjustment
Potentiometer
Timer to Close
Dip Switch #4
Master/Second
J4 Connector
Master/Second
J1 Connector
J5 Connector
SAMS
J3 Connector
Aux. Relay Drive
(not used)
J2 Connector
CONTROL BOARD ILLUSTRATION