LockMaster LM901 User manual

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Table of Contents
Safety Installation Information ………………………………………..…………………………………...... 2-3
Dual Gate Opener Parts List (902) …………………………….…………………………………..……….….4
Single Gate Opener Parts List (901) …………….…………….…………………………………..……….….5
Optional Accessories Parts List………...………………………….…………...…………………..…….…….6
Technical Specifications & Features ………………………………..…………………...……….…………....7
Installation Overview ………………………………………………….…………………...……………….…8-9
Preparation for Installation…………………………………………………..………………………..….…9-10
Determining the Position of Mounting Hardware……………………….…………………..……..……..10-12
Installing the Mounting Hardware……………..………………………………………..………..………. 12-13
Installation of the Opener…...………………………………………………………….……...……………… 13
Mounting the Control Box …………………………………………………………….….……………..…14-15
Connecting Opener Power Cables ……………………………………………..………….….………… 16-17
Wiring Diagram……………………………………………...………………………………………………..…17
Control Board Settings …………………………………………………….……………………...………. 17-20
Indicate Illustration on Digital Display When Gate Opener Is Running ………………………….………..21
Adjust the Limit Switch ………………………………………..….……………………………………….. 21-22
How to Operate ……………………………………………………………….……………………………….. 22
Emergency Release ……………………………………………………………………………………………22
Accessories Connection …………………………………..……………………………………….……….23-24
Installation for Push-to-Open Gates………………………………………………………………………..24-25
Maintenance………………………………………………………………………………………………….......26
Trouble Shooting…………………………………………………………………………………………..…26-27
Quick-Setting Guide……………………………………………………………………………………..…..27-30

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Safety Installation Information
1. READ and FOLLOW all instruction.
2. The gate opener is intended for use with Class I vehicular swing gates.
Class I denotes a vehicular gate opener (or system) dwellings, or a garage or parking area associated
therewith.
Install the gate opener only when the opener is appropriate for the construction and the usage class of
the gate.
3. Gate opening 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 system design and installation must
reduce public exposure to potential hazards. All exposed pinch points must be eliminated or
guarded.
4. A gate opener can create high levels of force during normal operation. Therefore, safety features
must be incorporated into every installation. Specific safety features include safety sensors.
5. The gate must be properly installed and work freely in both directions prior to the installation of the
gate opener.
6. The gate must be installed in a location so that enough clearance is provided between the gate and
adjacent structure when opening and closing to reduce the risk of entrapment. Swinging gates shall
not open into public access areas.
7. The opener is intended for use only on gates used for vehicles. Pedestrians must be supplied with a
separate access opening. The pedestrian access opening shall be designed to promote pedestrian
usage. The pedestrian access shall be located such that persons will not come in contact with the
moving vehicular gate.
8. Pedestrians should never cross the pathway of a moving gate. The gate opener is not acceptable for
use on any pedestrian gate. Pedestrians must be supplied with a separate pedestrian access.
9. For an installation utilizing non-contact sensors (safety sensors), see product manual on the
placement of non-contact sensors (safety sensors) for each type of application.
a. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the
safety sensor while the gate is still moving.
b. One or more non-contact sensors (safety sensors) shall be located where the risk of entrapment of
obstruction exists, such as the perimeter reachable by a moving gate or barrier.
10. Never mount any device that operates the gate opener where the user can reach over, under,
around or through the gate to operate the controls. Controls are to be placed at least 6’(1.8m) from
any part of the moving gate.

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11. 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. Never allow anyone to hang on or
ride the gate during the entire travel of the gate.
12. Each gate opener is provided with two safety warning placards. The placards are to be installed on
the front and back of the gate where they are plainly visible. The placards may be mounted using
cable ties through the four holes provided on each placard.
All warning signs and placards must be installed where visible in the area of the gate.
13. To AVOID damaging gas, power, or other underground utility lines, contact underground utility
locating companies BEFORE digging.
SAVE INSTRUCTION.

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Dual Gate Opener Parts List（902）
Opener and Mounting Hardware

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Single Gate Opener Parts List（901）
Opener and Mounting Hardware
REV 09a

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Optional Accessories Parts List
Tools Needed:
·Power Drill
·Tape Measure
·Open End Wrenches —14# &17# or Adjustable Wrenches
·Wire Strippers
·C-Clamps —small, medium, and large
·Level
·Hacksaw or Heavy Duty Bolt Cutters
·Phillips Screwdriver
·An extra person will be helpful

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Technical Specifications & Features
Specifications:
·Input: 230V/50Hz or 120V/60Hz
·Motor voltage: 24VDC
·Power: 80W each actuator
·Current: 3A
·Actuator arm speed: 16mm/s
·Max. Actuator arm travel: 385mm
·Max. Weight of the gate: 300kg
·Max. Width of the gate: 3m
·Ambient Temperature: -20℃~ +50℃(-4°F to 122°F)
·Protection class:IP44
Features:
·Soft start
·Emergency release key in case of power failure
·Dual/Single gate running mode
·Adjustable opening/closing interval between master and slave gate
·Stop/Reverse in case of obstruction during gate opening/closing.
·Built in adjustable auto-close (0-9 minutes)
·Built in TIMER-TO-CLOSE adjustable for multiple safety protection (0-60 seconds)
·Digital display indicates the running situation and setting menu
·Reliable electromagnetism limit for easy adjustment
·Optional alarm lamp and photocell protection
·Optional push button
·Optional back up battery & solar panel charging kit
·Optional keypad
REV 09a

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Preparation for Installation
The proper position of the post brackets is a decisive factor to the efficiency and leverage of the gate opener. The
distance (usually it is 2.5cm /1 inch or more) between the gate opener and the gate is also determined by the
proper position of the post brackets.
REV 09a

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Step 1
Place the post pivot bracket between the two
post brackets. Insert the M10x30 bolt through the
center hole of the post bracket and post pivot
bracket as shown. Place a ￠10 washer , ￠10
lock washer and M10 nut on the bottom of the
bolt and hand tighten.
Both round and square post can be used because of the curved design of the post brackets. When mounting the
post brackets, use bolts long enough to pass through the entire post.When mounting the post brackets to wooden
posts, a larger-size washer or metal plate should be used between the bolts and the wood post to ensure the
stability of the fastening hardware when thrust is used.
If the gate post is smaller than 15 cm (6”) diameter or square, they should be made of metal and set in cement to
ensure the stability of the post.
Determining the Position of Mounting Hardware
NOTE: The following steps are intended for Pull-to-Open gate installation only.
You will find a series of sizes from following chart to determine the proper mounting position

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Step 2
Attach the gate bracket and post bracket assembly to the opener by inserting a clevis pin. Secure the
clevis pins using the hairpin clips.
Step 3
With the gate in their desired open positions (from 0°to 100°from the gate’s closed position) and with
the opener in their retracted positions, place the opener with the gate bracket and post bracket
assembly on the gate post and the gate. Position the gate bracket and the post bracket assembly so that
the gate opener is level with the horizontal cross member of the gate. While holding the opener in the
desired level position, temporarily secure it with two C-clamps.
Step 4
Determine the optimum position of the pivot bracket on the post bracket assembly by ensuring a
minimum 2.5cm (1 inch) distance exists between the gate and the gate opener in both the gate-open and
gate-closed positions. To ensure the minimum 2.5cm (1 inch) distance maintained in the gate-closed
position, remove the clevis pin from the gate bracket while holding the gate opener, then close the gate.
Move the gate opener so as the gate bracket and the opener are aligned.
NOTE: Ensure the gate opener and the pivot brackets do not bind in the gate –open and gate –closed
positions.
If you don’t have enough distance, or the gate opener is binding on the post pivot bracket, you may move
the post pivot bracket assembly slightly to the right or left to obtain the proper distance.
After you’ve identified the desired position of the pivot bracket, place the M8 x 30 bolt into the desired
pivot on the post bracket.
NOTE: There is an emergency release design. Use the triangular key to unlock the opener, you can
stretch the moving rod or retract it by using hand to pull or push the front mount assembly. Be sure that
the openers are both locked before you prepare to activate your openers. Other information
please refer to content in page 22.

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Installing the Mounting Hardware
Step 5
Sign the bolt-hole point on the gate bracket and gate. Do this by placing a punch or a sign in the middle
of each bolt slot on the post bracket assemblies and the gate bracket. It allows slight adjustments to the
post bracket. Then remove the post bracket and gate bracket by taking off the C-clamps.
Step 6
Using a drill and a bit of ￠10.5, drill holes through the post and the
gate at the sign bolt hole point.
Step 7
Attach the post bracket assemblies to the gate posts by inserting
four M10 x 200 bolts through each post bracket assembly and the
drilled holes in the gate post. Fasten each bolt with one ￠10
washer, one ￠10 lock washer, and one ￠10 nut.

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Step 9
Cut all parts of bolt which is extending beyond the tightened nuts by saw.
Installation of the Opener
Step 10
Attach the gate opener to the securely fastened post bracket assemblies and gate brackets by using the
four clevis pins. Insert one clevis pin through the gate opener and the gate bracket. Insert the other
clevis pin through the gate opener and the post bracket assembly. Secure the clevis pins with the two
hairpin clips.
Step 8
Attach the gate brackets to each gate
by inserting two M10 x 75 bolts
through the gate brackets and the
drilled holes in the gates. Fasten
each bolt with one ￠10 lock washer,
and one ￠10 nut.

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Mounting the Control Box
CAUTION: Install the Control Box in a well ventilated place protected against rain and sunlight.
NOTE: It is strongly suggested that the control box should be mounted in the side of opener 1（in the
right-hand side from a view inside the gate）so that the electric lock (optional accessory) can be properly
installed (See P9).
Step 3
Insert second gate opener cable and alarm lamp cables into the control box through middle strain relief
house. Then repeat step 2.
Step 4
Insert other cables into the control box through rightmost strain relief housing. Then repeat step 2.
Step 1
To install the control box use the deck screws (not provided).
Ensure the control box is installed in a secure surface and at least
100 cm (40 inches) above the ground to protect it from rain, snow,
etc. which probably cause damage to the control box.
Warning: Before connecting the AC power cable to the
control box, check the plug of power cable is disconnected from AC
power socket.
Step 2
Insert the power cable and cable of the first gate opener through the
front strain relief and into the control box by loosening the strain relief
screw located the leftmost of outside bottom of the control box and
feeding the cables into the control box. Check the length of cable is
longer enough to their respective terminal block in control box.
Retighten the sealing nut so that cables are well locked.

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The cables listed from left to right are as follows:
2-core power cable; motor 1, 5-core cable; motor 2, 5-core cable; alarm lamp 2-core cable; battery
2-core cable; push button 2-core cable; photocell two 2-core cables
NOTE: Only motor cables are provided. Other cables are subject to site installation requirement.
CAUTION: Make sure the cable outlet hole in the Control Box is always down during so as to drain off
the water.

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Connecting Opener Power Cables
Back-up Battery (optional)
Step 4
The red wire should be inserted into the BAT+ terminal, the black wire into BAT-.
Photocell Beam System (PBS) (optional)
Step 5
Please refer to the separate Manual Instruction of PBS Switch
Gate Opener 1
Step 1
Insert the stripped cable wires into the
appropriate terminals on the opener terminals
block. The red thick wire should be inserted
into the MOTOR1+ terminal, the black thick
wire into MOTOR1-, the red wire into ULT1,
the black wire into COM, and the yellow wire
into DLT1 terminal.
Gate Opener 2
Step 2
Similar as the step 1, insert the stripped cable
wires into the appropriate terminals on the
opener terminals block. The red thick wire
should be inserted into the MOTOR2+
terminal, the black thick wire into MOTOR2-,
the red wire into ULT2, the black wire into
COM, and the yellow wire into DLT2 terminal.
NOTE: It is recommended that Gate Opener
1 is installed in the Master Gate, and Gate
Opener 2 is installed in the Slave Gate.
Alarm Lamp (optional)
Step 3
The red wire should be inserted into either
LAMP terminal, the white wire into the other
one.

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Push Button (optional)
Step 6
The red wire should be inserted into either O/S/C terminal, the white wire into the other one.
Wiring Diagram
Control Board Settings
1. Check again for completed and correct assembly of your swing gate opener and gate. Plug the Power
Grounded Cord into the nearest AC outlet. The Digital Display on the Control Board will flash with “- -”.
The unit is in standby.
2. Single/Dual Gate Set
Press and hold the “FUNC”Button for more than 4 seconds.
The Digital Display will indicate “P1”. Gate opener is on the
SINGLE/DUAL Gate setting. Press the “INC”and “DEC”
Buttons respectively to following modes:
“01”shown in Digital Display, it is Single Arm 1 (right-hand
side) mode. “10”shown in Digital Display, it is Single Arm 2
(left-hand side) mode. “11”shown in Digital Display, it is Dual
arm mode.
Press the “FUNC”button to store the data when the single or
dual gate is chosen. The Digital Display will indicate “P2”. Now
single/dual gate set is finished.
(Factory set is “11”)

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Without a properly installed safety reversal system, person (particularly small children) could be SERIOUSLY
INJURED or KILLED by a closing gate.
*Too much force on gate will interfere with proper operation of safety reversal system.
*NEVER increase force beyond minimum amount required to close gate.
*NEVER use force adjustments to compensate for a binding or sticking gate.
* If one control (force or travel limits) is adjusted, the other control may also need adjustment.
* AfterANY adjustments are made, the safety reversal system MUST be tested. Gate MUST BE TESTED. Gate
MUST reverse on contact with a rigid object.
The opener is equipped a with an obstruction sensing feature. If the gate encounters an obstruction the opener
will automatically reverse direction and stop. Based on the length and weight of the gate it may be necessary to
make force adjustments. The force adjustment should be high enough that small objects such as branches or
wind will not cause nuisance interruptions but low enough to prevent serious injury to a person or a vehicle.
3. Master/Slave Gate Set
When Digital Display indicates “P2”, the gate opener is on the Master/Slave Gate Setting. Press the
“INC” and “DEC” Buttons respectively to follow modes:
“01”shown in Digital Display, which means Gate Opener 1 (right-hand side) as Master one
“10”shown in Digital Display, which means Gate Opener 2 (left-hand side) as Master one
Press the “FUNC”button to store the data when the master/slave gate is chosen. The Digital Display will
indicate “P3”. Now Master/Slave Gate Set is finished. (factory set is “01”)
4. Set the Open Interval Set between Master and Slave Gate
When the Digital Display indicates “P3”, the gate opener is on the Open Interval between Master/Slave
Gate Setting.
The open interval can be adjusted by pressing the “INC” and “DEC” Buttons respectively. The Digital
Display will show “0-9”, which indicates the interval time”0”is the Master and Slave gates open
simultaneously. ”1”means the Master Gate starts to open 1 second before Slave gate. Maximum start
time is 9 second. Each time you press and release the “INC”button, the figure increases by 1, and the
Master gate starts to open 1 more second earlier. Each time you press and release the “DEC”Button,
the figure decreases by 1, and the start time decreases 1 second.
(Factory set is 3 seconds)
Press the “FUNC”button to store the data when the open interval is set. The Digital Display will indicate
“P4”. Now Open Interval Set is finished.
5. Set the Close Interval between Master and Slave Gate
When the Digital Display indicates “P4”, the gate opener is on the Close Interval between Master/Slave
Gate Setting.
The Close Interval can be adjusted by pressing the “INC” and “DEC” Buttons respectively. The Digital
Display will show “0-9”, which indicates the interval time ”0”is the Master and Slave gates open
simultaneously. ”1”means the Slave Gate starts to close 1 second before Master gate. Maximum start
time is 9 second. Each time you press and release the “INC”button, the figure increases by 1, and the
Slave gate starts to close 1 more second earlier. Each time you press and release the “DEC”Button, the
figure decreases by 1, and the start time decreases 1 second.
(Factory set is 3 seconds)
Press the “FUNC”button to store the data when the Close Interval is set. The Digital Display will indicate
“P5”. Now Close Interval Set is finished.
6. Adjust the Obstruction Sensitivity/Stall Force
When the Digital Display indicates “P5”, the gate opener is on the Stall Force Adjustment.

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NOTE: You may need to increase the stall force in cold weather due to increased resistance from
gate hinges. The gate opener’s open/close force is adjusted automatically according to stall force
adjustment.
Note: If the “11”is be set, the gate opener won’t work until the PBS system is equipped. The PBS
system works only when gate opener is closing. The gate opener will return to its open position when
the obstruction blocks the beam from photo eye.
6-a Adjust Stall Force of Gate Opener 1
Now we adjust the stall force of gate 1
The stall force of gate opener1 is adjusted by pressing “INC” and “DEC” Buttons respectively. The Digital
Display will show “1”–“9”which indicates the stall force level.”1”is the minimum force, and “9”is the
maximum force. Each time you press and release the “INC”button, the figure increase by 1, and the
force increases to a higher level. Each time you press and release the “DEC”button, the figure
decreases by 1, and the force decreases to a lower level. Press “FUNC”to store the data. The Digital
Display will indicate “P6”. Now stall force of gate opener 1 is finished.
(Factory set is Level 3)
6-b Adjust Stall Force of Gate Opener 2
When the Digital Display indicates “P6”.you can adjust force of gate opener 2.
Please perform the same procedure same as gate opener 1. (5-b)
Press the “FUNC”button to store the data when stall force of gate opener2 is set. Then “P7”will be
shown on the Digital Display.
7. Adjust the TIMER-TO-CLOSE (TTC) for gate opener
The TIMER TO CLOSE feature can be set to automatically close the gate after a specified time period.
The gate opener will be stop to move during open if the running time exceeds the specified time.
7-a Adjust the TTC of gate opener 1
When the Digital Display indicates “P7”, the gate opener enter Timer –to –Close adjusting mode
The TTC of gate opener 1 is adjusted by pressing “INC” and “DEC” Buttons respectively. The Digital
Display will show “1”–“60”which indicates the TTC time from 1 to 60 seconds.
You can press hold the INC or DEC button exceeds 1 second to speed up your set until the design time
is set .Press the “FUNC”button to store the data when the TTC of gate opener 1 is adjusted. The Digital
Display will indicate “P8”.
(Factory set is 30 seconds)
7-b Adjust the TTC of gate opener 2
When the Digital Display indicates “P8”, you can adjust TTC of gate opener 2.
Please perform the same procedure same as gate opener 1 (7-a)
Press the “FUNC”Button to store the data when TTC of gate opener2 is adjusted. The
Digital Display will indicate “P9”. Now Gate Opener 2 adjustment is finished.
8. Set the safety Photocell Beam System (PBS) (Optional)
When the Digital Display indicates “P9”, the gate opener enters PBS set mode.
You can press and release the “INC” or “DEC” Buttons to set or close the PBS function. The Digital
Display indicates “11”, the PBS is available. The Digital Display indicates “00”, the PBS is null.
Press the “FUNC”button to store the data when the SPB is set. The Digital Display will indicate “PA”.
(Factory set is “00”)
REV 09a