Power Master MBG User manual

Installation Manual
UL 325 AND UL 991 LISTED
MEDIUM DUTY BARRIER GATE OPERATOR U
L
R
PowerMaster
2
MODEL “MBG”
MEDIUM DUTY BARRIER GATE OPERATOR
Important Safety Information………………………………............…...……3
System Designer Safety Instructions……………………….…....…...4
Installer Safety Instructions…………………………………….....…. ..….…5
Installation Notes ……………………………………….................…….6
End User Safety Warnings ………………………………….….……....8
Installation & Setup Procedure
Before Installing Operator……………………………..………..……..11
Installation of Mounting Pipe………………………………………….12
Installation of Power Head………………………………..…..............14
Installation of Barrier Arm…………………………………...…..........15
Electrical Connections…………………………...……………………….15
Left Hand/Right Hand Conversions…………………………………...17
Manual Operation……………………………………...………………....18
Limit Adjustment Procedure………………………………..…………19
Master/Slave Operation………………………………………………...20
Connection of a 3 Button Station……………………………………..21
Radio Control Installation………………………………….…………..21
Timer To Close…………………………………….……………………..22
Installation of Edge Sensor or Photo Eyes……………………….…22
Loop Detector Systems and Installation
Loop Layout Diagram…………………………………………………...23
Standard Loop Layouts…………………………….…........................24
Loop Installation…………………………………………………………24
Cutting The Required Groove…………………………......................25
Loop Connections……………………………………………………….26
Installer Information…………………………………………………… .27
Wiring Diagram………………………………………………….……….28
Notes/Maintenance Log………………………………….……………....29
Warranty……………………………..……………………………………...30
TABLE OF CONTENTS

3
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FOR BARRIER GATE OPERATING SYSTEMS
SAFETY IS EVERYONE’S BUSINESS
Automatic gate operators provide convenience and security to
users. However, because these machines can produce high
levels of force, it is important that all gate operator system
designers, installers, and end users be aware of the potential
hazards associated with improperly designed, installed, or
maintained systems. Keep in mind that the gate operator is a
component part of a total gate operating system.
The following information contains various safety precautions
and warnings for the system designer, installer and end user.
These instructions provide an overview of the importance of
safe design, installation, and use.
Warnings are identified with the ▲symbol. This symbol will
identify some of the conditions that can result in serious injury or
death. Take time to carefully read and follow these precautions
and other important information provided to help ensure safe
system design, installation and use.
▲WARNING:Gate operators are only one part of a
TOTAL GATE OPERATING SYSTEM. It is the
responsibility of purchaser, designer, and installer to ensure
that the total system is safe for its intended use. All
secondary entrapment safety devices must be
RECOGNIZED by U/L to ensure the safety of the complete
operating system.
4
SYSTEM DESIGNER SAFETY INSTRUCTIONS
▲1. Familiarize yourself with the precautions and
warnings for the installer. Users are relying on your
design to provide a safe installation. The installation
should have an entrapment protection system
installed such as photoelectric sensors or an electric
edge.
▲2. When designing a system that will be entered from a
highway or main thoroughfare be sure the system is
placed far enough away from the road to eliminate
traffic backup. Distance from the road, size of the
gate, usage levels, and gate cycle/speed must be
considered to eliminate potential traffic hazards.
▲3. Design the gate system so a person cannot be
trapped between the arm and any other fixed
structure. All rigid objects must be at least 2 feet
from gate arm.
2
FEET

5
INSTALLER SAFETY INSTRUCTIONS
BEFORE INSTALLATION
▲1. Check to see that the operator is proper for this
type and size of opening and its frequency of use.
If you are not sure, consult factory.
▲2. Check to see that there are no structures
adjacent to the area, which may pose a risk of
entrapment when gate is opening or closing.
▲3. Safety equipment such as electric edges or
photocell sensors must be installed to provide
personnel, equipment, and property protection.
For assistance in selecting the correct type of
safety equipment, consult the factory.
▲4. You must install a pushbutton control or key
switch to allow for normal operation of the gate if
the automatic controls do not work. Locate the
pushbutton or key switch and small warning
placard within sight of the gate in a secured area
at least 10 feet or more from the gate and fence
to keep users away from the moving gate and
fence.
▲5. Outdoor or easily accessed gate controls should
be of the security type to prohibit unauthorized
use.
6
DURING INSTALLATION
▲1. Be aware of all moving parts and avoid close
proximity to any pinch points.
▲2. Disconnect power at the control panel before making
any electric service connections. Connection
location for controls and safety equipment can be
found on the wiring diagram, and in this manual.
▲3. Locate the controls at least 10 feet from the moving
gate so that the user can observe the gate operation,
but is not able to come in contact with the gate while
operating the controls.
10 FEET

7
AFTER INSTALLATION
▲You are responsible for ensuring that the end
user understands the basic operations and
safety systems of the unit, including the proper
way to engage and manually operate the unit.
▲Point out that the safety instructions in
brochure are the responsibility of the end user,
and then LEAVE A COPY OF THIS
BROCHURE WITH THE END USER
8
END-USER SAFETY WARNINGS
Be sure you’ve been fully instructed on the sequence of
operation for your specific gate system(s). Keep the gate
properly maintained and have a qualified service person
make repairs.
▲1. Be sure the following safety instructions are
distributed to all persons authorized to use your
gate.
▲2. KEEP GATEWAY CLEAR AT ALL TIMES. Your
automatic gate is not for pedestrian use. No one
should ever cross the path of the moving gate.

9
▲3. DO NOT allow children to play near your gate, or
to operate the gate.
▲4. DO NOT operate your gate system unless you can
see it when the gate moves.
▲5. Be sure a pushbutton or key switch has been
installed for manual electric operation in the event
your radio or card does not work. Any mounted
control station should be located a minimum of 10
feet from the gate so the gate cannot be touched.
Any pushbutton located in a building should be
installed within sight of the gate.
▲6. DO NOT operate any controls without watching the
movement of the gate.
▲7. Be sure the gate arm DOES NOT come within 2
feet of any rigid object, therefore causing an
entrapment situation.
10
2
FEET
▲8. If your gate closes automatically, loop detectors
should be installed to detect the presence of a vehicle.
▲9. If a contact or non-contact safety system has been
installed check for proper operation at least once per
month. If these functions are observed to operate
improperly, discontinue use and have it serviced
immediately!
▲10. To ensure safe operation of this equipment, you
must read this safety manual and keep it for reference.
MANUAL OPERATION
▲. Please refer to page 18 for Manual Operation
Instructions.

11
INSTALLATION INSTRUCTIONS
WARNING: DO NOT APPLY POWER UNTIL TOLD TO DO
SO! RISK OF ELECTRICAL SHOCK OR INJURY MAY
RESULT!
BEFORE INSTALLING OPERATOR
IMPORTANT:
1. Operator should always be mounted inside the gate.
2. All controls are to be mounted at least 10’ from the
gate arm.
10 FEET
2
FEET
3. Allow at least 2 feet clearance from rigid objects to
gate arm.
12
INSTALLATION OF MOUNTING PIPE
Note: There are two options for the
installation of a mounting pipe.
1. Cement a 69” long, 1-1/2 inch pipe
(approximately 2” diameter) in the ground as
shown below.
4"MIN.
33"
36"
2 FOOT DIA.
2" DIA. PIPE
ELECTRICAL SUPPLY PIPE
(PER LOCAL CODE)
NOTE: A SEPARATE CONDUIT
SHOULD BE USED FOR
CONTROL WIRING.
Ground
Level
Note: Let cement cure for two days before proceeding.

13
2. Install a mounting pad as shown below, for use
with optional pipe stand available through your
dealer.
Note: Let cement cure for two days before proceeding.
2"
24" MIN.
1/2" ANCHOR BOLTS
28"
16"
22"
10"
GROUND LEVEL
1-1/2" MIN.
14
INSTALLATION OF POWER HEAD
1. Remove exterior cover and install (2) 2” U-bolts as shown
below.
2. Install 3/8 flat washers, 3/8 lock washers, and 3/8 nuts.
3. Mount power head on top of pipe by inserting pipe up
through large hole in bottom of operator frame, through
the two u-bolts until it stops against drive frame angle.
2"U-BOLTS
(4) 3/8" NUTS
(4) 3/8"
LOCKWASHERS
(4) 3/8"
FLATWASHERS
DRIVE FRAME
ANGLE
2"PIPE
NOTE: REDUCER AND MOTOR
NOT SHOWN FOR CLARITY.
EXTERIOR
COVER
POWER HEAD

15
INSTALLATION OF BARRIER ARM
1. Install arm flange on power head output shaft as shown
figure below ,and secure position with ¼” square key and
(2) 5/16 set screws.
2. Install (2) 2-1/2” U-bolts in arm flange as shown.
3. Install 3/8 serrated flange nuts loosely on U- bolts.
4. Insert barrier arm pipe through two U-bolts and secure the
desired position by tightening the 3/8 serrated flange nuts
on the u-bolts.
2
-
1/2" U
-
BOLTS
ARM FLANGE
POWER HEAD
OUTPUT SHAFT
1/4" SQUARE KEY
5
/16" SET
SCREWS
(4) 3/8" SERRATED
FLANGENUTS
BARRIER ARM PIPE
ELECTRICAL CONNECTIONS
WARNING- DO NOT APPLY POWER UNTIL TOLD TO DO
SO. RISK OF SHOCK OR INJURY MAY RESULT!
NOTE: Wiring to operator must use watertight materials in
accordance with local electric code. See wire gauge/distance
charts for proper sizing. Master/Slave installations should
have SEPARATE power supply wiring or length of wire runs
16
BLK BLK
WHT WHT
GRN GND
INSIDE UTILITY BOX,
CONNECT AS SHOWN
INCOMING
POWER
115V - 1Ø
OPERATOR
UTILITY BOX
should be figured at half that shown on the chart. This unit
must be grounded in accordance with N.E.C. and local
codes.
Before connecting the operator, use a voltmeter to determine
that the electrical service is 115V. THIS OPERATOR
CANNOT BE CONNECTED AT 230 VOLTS. Damage will
result which is not covered under warranty.
1. Be sure power switches at source and operator are OFF.
2. Connect incoming power lines and ground wire as shown
below.
Hot leg (black) to BLACK; Neutral (white) to White:
Ground to GREEN
Line
Voltage HP 14
AWG
12
AWG
10
AWG
8
AWG
6
AWG
115
VAC 1/2 150 250 400 500 650
LOW VOLTAGE WIRE
GAUGE /DISTANCE CHART
24 AWG: Up to 150'
20 AWG: 150' - 200'
250' - 1, 500'
Control wiring shoul d be run as twist ed
pairs. DO NOT run control wires in the
same conduit as power wires. telephone
wires, or loop detector leads.
18 AWG:

17
LEFT HAND/RIGHT HAND CONVERSIONS
1. Determine the hand of the operator required for this
installation by referring to the illustration below.
LEFT HAND RIGHTHAND
Note: Operators are wired for Right Hand
operation at the factory.
2. Place the Yellow and Blue wires in the appropriate
positions, as shown below, for Right Hand or Left Hand
operation.
Note: If operator hand is being changed, limits MUST
be reset.
GREEN
BLUE
YELLOW
GRAY
GREEN
BLUE
YELLOW
GRAY
BACKOFMOTOR,
LEFT HAND MOTOR CONNECTIONS BACK OF MOTOR, RIGHT HAND MOTOR CONNECTIONS
18
MANUAL OPERATION
▲WARNING: TURN OFF POWER SUPPLY BEFORE
REMOVING COVER.
1. Remove (4) cover mounting screws and lift off top cover.
2. Remove crank pin from storage area in drive frame. See
Diagram. Note: This will disengage interlock and prevent
power from returning to the operator during manual
operation.
3. Insert crank pin in timing
pulley as shown in
diagram. Rotate timing
pulley with crank pin
until desired position is
achieved.
4. To resume powered
operation, remove crank
pin from timing pulley and
replace in storage area on
drive frame.
▲Note: Be sure drive pin is fully inserted back into drive
frame in order to activate interlock.
5. Replace cover and secure with (4) mounting screws.
6. Turn on supply power to operator.
CRANK
PIN
TIMING
PULLEY
TOP COVER

19
LIMIT ADJUSTMENT PROCEDURE
▲WARNING: TURN OFF POWER SUPPLY BEFORE
MAKING ANY ADJUSTMENTS.
1. After the operator has been installed and the Barrier Arm
secured in position, rotate the arm to the horizontal position using
manual crank as shown in previous section.
2. Loosen the set screw on the horizontal stop cam and rotate the
cam, (counterclockwise for a Right Hand installation and
clockwise for a Left Hand installation) until it just actuates the
horizontal limit switch. (See diagram.) Secure this position by
tightening set screw.
HORIZONTAL
STOPCAM
HORIZONTAL
LIMITSWITCH
VERTICAL
STOPCAM
VERTICAL
LIMIT SWITCH
3. Rotate the Arm to the straight up, vertical position. Loosen the set
screw on the vertical stop cam and rotate the cam, (clockwise for
a Right Hand installation and counterclockwise for a Left Hand
installation) until it just actuates the vertical limit switch. (See
diagram.) Secure this position by tightening set screw.
4. Remove crank pin from timing pulley and replace in storage area
on drive frame. Note: Be sure drive pin is fully inserted back
into drive frame in order to activate interlock.
5. Turn on power, then raise and lower barrier arm using the
control switch next to outlet box.
20
▲WARNING:TURN OFF POWER BEFORE MAKING
ADJUSTMENTS!!!
6. Make minor adjustments to limit cams as required to obtain the
desired “OPEN” and “CLOSED” positions.
MASTER - SLAVE OPERATION
NOTE: A single unit is considered a MASTER. For MASTER-
SLAVE installation, one unit must be converted to LEFT HAND
operation, as shown on page 16. All units are shipped as
“MASTER” from the factory.
1. Leave jumper on the MASTER operator’s circuit board in the
“OFF” position.
2. Move jumper on SLAVE operator’s circuit board to the “ON”
position.
ON
SLAVE
JUMPER ON
SLAVE
JUMPER
MASTER
POSITION
(OFF)
SLAVE
POSITION
(ON)
3. Connect terminal #15 of MASTER unit to terminal #5 of SLAVE
unit.
4. Connect terminal #16 of MASTER unit to terminal #6 of SLAVE
unit.
5. Connect terminal #17 of MASTER unit to terminal #7 of SLAVE
unit.
1
2
3
4
5
6
7
8
9
15
16
17
A
B1
2
3
4
5
6
7
8
9
15
16
17
A
B
MASTER
TERMINAL
STRIP

21
CONNECTION OF A 3 BUTTON STATION
NOTE: All Control contacts must be NORMALLY OPEN.
•Connect “STOP” button to Terminal #4.
•Connect “COMMON” button to Terminal #5.
•Connect “OPEN” button to Terminal #6.
•Connect “CLOSE” button to Terminal #7.
RADIO CONTROL INSTALLATION
A Three or Four wire radio control receiver can be installed on
this operator. See the diagrams below for the correct connections
to match your installations equipment and desired functions.
NOTE: If your radio’s connecting wires are not color coded as
shown, see the radio’s installation manual to determine which
wires are for the normally open contacts and which require
the 24 VAC Power Supply.
4 WIRE
RADIO
R1
R2
R3
GY
R
BK
GY
R4
N.O.
CONTACT
RADIO CONTROL
TERMINAL
24 VAC
USE THESE
3 TERMINALS
FOR 3-WIRE
RADIO CONTROL 1 2 3 4 5
A B
NOTE:The radio connections shown above are for “OPEN ONLY”
operation. Therefore the “TIMER TO CLOSE” option must be
activated for closing. (See next section.) If alternate “Open” -
“Close” operation is desired move wire on terminal strip from
terminal #2 to terminal #1.
22
TIMER TO CLOSE OPTION
The operator is equipped with
a timer to close option for use
with OPEN ONLY control
devices such as a radio
control, or card key control.
The AUTO RECLOSE TIMER
adjustment screw is located on
the printed circuit board. The
operator is shipped from the
factory with this timer preset to
the off position; fully counter
clockwise. As the timer
adjustment screw is rotated
clockwise, the closing of the gate can be delayed from 2 seconds
to 60 seconds. The timer to close will only be activated whenever
the gate is in the full open position.
INSTALLATION OF EDGE SENSOR OR PHOTOEYES
NOTE: 24 VAC power is available between terminals A & B for
devices such as photo eyes, wireless edges, etc. All safety device
contacts must be NORMALLY OPEN.
1. Install edge sensor or
photoelectric eye system as shown.
Photocells should be installed at
least 10” above the ground.
NOTE: All hard wiring to safety
edges must be installed so there is
no threat of mechanical damage to
wiring between components, when
the gate is moving.
NOTE: A separate pedestrian gate
must be installed if there is no other
entry access but the vehicular gate.
AUTO
CLOSE
TIMER
60 SEC
2 SEC
OFF
LOCATIONOF
AUTOCLOSETIMER
ADJUSTMENT
EDGE SENSOR
PHOTOELECTRIC CELL
REFLECTOR

23
2. Electrically connect sensing system to operator terminal strip as
shown below.
LOOP DETECTOR SYSTEMS AND INSTALLATION
8'
4'
4'
4'
4'
Road Surface
Sealant
Loop wires
Min 1"
3/16" To 1/4"
Saw Slot
4'
4'
8
9
15
FROM EDGE SENSOR OR
PHOTOELECTRIC EYE
24
1. The EXIT LOOP provides a signal to open the gate when a
vehicle enters the loop zone.
2. The REVERSING LOOP protects a vehicle in the loop zone
from being contacted with the gate by over riding any close
signal while the gate is open, and by reversing the gate if
closing.
3. The CLOSE LOOP provides a signal to close the gate when a
vehicle exits the loop.
LOOP INSTALLATION
1. Layout the desired loop
locations per the diagram.
The standard size chart at
right will give an approximate
length of wire required for
various loop dimensions and
number of turns required.
CAUTION: The Loop wires and
Lead-in wires must be a
continuous piece of wire
without splices. Only use wire
intended for this type of
application. (Type XHHW
insulation 16AWG)
NOTE: Buried steel from drains or
other systems may affect
functioning of the loop system.
Check with the factory for advice
on any special installations.
(1-800-243-4476).
STANDARD LOOP LAYOUTS
For 36” High Detection

25
3/16" To 1/4"
1" To 2"
1" To 2"
Loop Wire
(See Chart)
Lead In Wire
(Twisted At 6
Turns Per Foot)
1/2" Conduit
Conduit Cut
2. Cut the required groove as shown in the diagram at left at the
locations laid out in Step #1.
3. Leave enough wire for the LEAD IN, and insert the specified
number of turns of wire into the cut grooves. (See chart page
24.)
CAUTION: Be careful not to damage the wire insulation
during installation.
4. After completing the required number of loop turns, twist the
ends together at the rate of 6 turns per foot to form the LEAD-
IN.
5. Seal the LEAD-IN wire in the conduit to prevent moisture
seepage into the conduit.
6. Fill over the loop wires in the groove with a recommended loop
sealant. Contact your distributor for available sealants.
7. Mount the loop detector in the operator and connect the wire
loop.
26
8. Connect loop detector to the control board as shown in the
following diagrams.
Note: The following diagrams show single loop connections.
For multiple loop connections consult the loop detector’s
instruction manual, or call the Power Master Technical line at
1-800-243-4476.
1. The EXIT LOOP provides a signal to open the gate when a
vehicle enters the loop zone.
V
OR
R
P
Not Used
BL
BK
WH
Y
GR
BR
GY TO DRIVEWAY
LOOP
NOTE: TWIST LEADS APPOX.
6 TURNS PER FOOT.
EXIT LOOP CONNECTION
1 2 3 4 5A B
2. The REVERSING LOOP protects a vehicle in the loop
zone from being contacted with the gate by over riding any
close signal while the gate is open, and by reversing the
gate if closing.
V
OR
R
P
Not Used
BL
BK
WH
Y
GR BR GY
TO
DRIVEWAY
LOOP
REVERSING LOOP CONNECTION
NOTE: TWIST LEADS APPOX.
6 TURNS PER FOOT.
1 2 3 4 5 6 7 8 9
A B

27
3. The CLOSE LOOP provides a signal to close the gate
when a vehicle exits the loop.
V
BL
Y
P
Not Used
OR
BK
WH
R
GR BR GY
TO
DRIVEWAY
LOOP
NOTE: TWIST LEADS APPOX.
6 TURNS PER FOOT.
1 2 3 4 5 6 7 8 9A B
CLOSE LOOP CONNECTION
WARNING LOOP DETECTOR MUST BE PROGRAMMED TO
ACTIVATE OPERATOR WHEN VEHICLE LEAVES LOOP.
(SEE LOOP DETECTOR INSTRUCTIONS OR CALL FACTORY TECHNICAL
HELP AT 1-800-243-4476)
28

29
Maintenance Log
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Notes
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Registration Information
Model MBG Location Installed:
Date Installed____________ Address ___________________
Serial # ________________ Address ____________________
Address ____________________
Installer’s Information
Company Name ______________________________________
Company Address ____________________________________
Company Address ____________________________________
Company Address ____________________________________
Company Telephone # _________________________________
Company Contact _____________________________________

31
PowerMaster
Limited 5 Year Warranty
PowerMaster warrants all gate operators to be free of defects in
materials and workmanship for a period of Five (5) years from date
of purchase. If any part is found to be defective during this period,
new parts will be furnished free of charge. Failure of this product
due to misuse, improper installation, alterations, vandalism, or lack
of maintenance is not covered under this warranty, and voids any
other implied warranties herein.
PowerMaster is not responsible for any labor charges incurred in
connection with the installation of warranted parts.
In order to activate this warranty, the registration form on
opposite page MUST be completed and returned within
THIRTY CALENDER DAYS FROM DATE OF PURCHASE
VIA CERTIFIED MAIL. If registration is not activated, a one
year warranty will apply.
32
Model MBG
Date Installed____________
Serial # ________________
Location Installed:
Address: ___________________
Address: ___________________
Address: ___________________
Installer’s Information
Company Name _____________________ Company Telephone # ______________
Company Address ___________________ Company Contact _________________
Company Address ___________________
Company Address ___________________