TOPENS RK990T (01) PDF Document

Prior to installation, please verify that your planned installation complies with all relevant local building codes and ordinances. Dispose of packaging materials in accordance with local regulations.

The gate opener is intended for installation only on gates used for vehicles. Pedestrians should use a separate entrance to avoid contact with the moving vehicular gate.

Ensure that the gate is plumb, level, and slides smoothly in both directions without binding or dragging on the ground. Wheels and guide rollers should rotate easily and be free of dirt or grime. Confirm that the gate track is straight, horizontal, and firmly affixed. Secure the fence posts in the ground with concrete. Repair or replace all worn or damaged gate hardware prior to installation.

Avoid using the post or wall as a stopping mechanism, either directly or indirectly. This precaution helps protect the post or wall from potential damage due to the impact of the sliding gate.

Positive stops must be installed at each end of the gate track to assure that the gate does not exceed its limit of travel and derail while opening or closing fully.

An experienced installer should perform the installation. Improper installation may result in property damage, severe injury or death. The gate opener is only part of the entire gate operating system, and it is the responsibility of the installer and end user to ensure that the total system is safe for its intended use.

Ensure that the gate opener is powered off before electrical wire connections or making any adjustments.

Only install the gate opener on firm, level ground and on the inside of the property or fence line. Ensure there is sufficient clearance between the gate and adjacent structures when opening and closing to minimize the risk of entrapment. Avoid installing it on the outside of the gate where the public has access to it. Avoid installing it in areas prone to flooding or in locations exposed to flammable or explosive fumes.

It is highly recommended to install a photocell sensor in the following situations for safety: if you have children or pets at your property, the gate opener auto close function is set to ON, the gate opener stall force is set to the maximum, a vehicle exit sensor is installed, or other gate control devices are used.

Ensure when the gate is fully open, the end of the sliding gate keeps at least 10cm (4″) away from any walls or objects. Exercise caution around moving parts and avoid approaching areas where fingers or hands could get caught. Always keep children, pets and livestock clear of the gate and its path of travel. Never cross the path of a moving gate.

Gate control accessories intended for user activation must be located at least 1.5 meters (5′) away from any moving part of the gate and where the user is prevented from reaching over, under, around or through the gate to operate the controls. Outdoor or easily accessible controls shall have a security feature to prevent unauthorized use.

Attach the provided warning signs to both sides of the gate in highly visible locations to alert the public about the automatic gate opener system. If your signs are damaged or missing, please reach out to TOPENS Customer Support for replacements.

Test the gate opener monthly. The gate must stop or reverse on contact with a rigid object or when an object activates the non-contact sensors. After adjusting the stall force or limit travel, retest the gate opener.

Understand how to disconnect the power and manually open the gate. Disconnect the gate opener from the gate only when the gate is not in motion and the gate opener system is turned off.

Save the installation manual. Make sure everyone who is using or will be around the gate and gate opener are aware of the dangers of automated gate systems. If a replacement manual is needed, you can download a copy from the TOPENS website.

Ensure that the opener is installed in a level and parallel position and is securely fastened. Improper installation may result in property damage, severe injury, and / or death.

The tools needed are:

• Power Drill
• Tape Measure
• Open End Wrenches – 14# &17# or Adjustable Wrenches
• Wire Strippers
• Level
• Phillips Screwdriver
• Slotted Screwdriver

Items that may be needed include:

• PVC Conduit: Required to protect the cable connecting TC102 infrared photocell sensor to the control board.
• Connection Cable: Connection cable may be required for installing wired accessories. Refer to the Connection of Accessories section in this manual to purchase the correct cable.
• Weatherproof Cover: Use a weatherproof cover to protect the electrical outlet if it is located outdoors.
• Surge Protector: It is recommended to use a surge protector with a rated current of 10A with the power cord for the 120VAC gate opener and rated current of 5A for 230VAC gate opener.

Step 1: Identify the Location of the Power Cord Hole

• Unscrew the three cover screws located on the motor casing to remove the casing.
• Remove the side covers.
• Check the power cord hole.

Step 2: Determine the Position of the Opener

• Place the opener near the front roller of the gate.
• Position the rack against the gate. Adjust the opener’s position to ensure that the rack teeth are fully engaged with the gear.

Step 3: Lay out the Concrete Pad

• Dig a hole for the concrete pad at the designated location for the opener. The dimensions should be approximately 500 x 300 x 350mm (20″ x 12″ x 14″).
• Install the electrical conduit (right under the power cord hole of the opener).
• Pour the concrete pad.
• Ensure that the pad surface is level and parallel to the driveway.
• Increase the pad height if necessary to protect the system from flooding, heavy snow, etc.

Step 4: Install the Opener

• Attach the base plate to the concrete pad and then put the opener on the base plate, ensuring that it is perfectly parallel to the gate.
• Mark the locations for the four expansion bolts based on the mounting holes on the base plate. Drill the holes with a 14mm (0.55″) masonry bit.
• Secure the opener and the base plate with the expansion bolts. DO NOT over tighten the bolts, as further adjustments may be needed later.
• NOTE: Leveling pads and bolts may be used on uneven ground or in areas where a higher position is required to install the racks.

Step 5: Disengage the Clutch

• Insert the manual release key and turn it 90° clockwise.
• Pull the release handle 90° clockwise to disengage the clutch between the gear shaft and the motor.
• The gate opener is now in manual mode, allowing you to open the gate by hand freely.

Step 6: Fit the Rack (Nylon Gear Rack or Steel Gear Rack)

• Place the rack on the gear, ensuring that it is level and fully engaged with the gear teeth across their entire thickness.
• Maintain a 1mm (0.04″) gap between the rack and the gear to prevent the weight of the gate from affecting the opener.
• Secure the nylon gear rack with the included self-threading screws and plates. For the steel gear rack (sold separately), weld the rack nut to the gate, then fasten the steel gear rack with the included hex bolts and plain washers.
• Repeat the same steps used for the first rack section to install the remaining sections until the desired length is reached.
• Manually open and close the gate to ensure that the gate moves smoothly with the gear rack installed.
• Cut away any excess length of the rack. (Note: the rack must be longer than the actual travel distance of the gate.)

Step 7: Install the Magnets

• Attach the magnets to the magnet brackets.
• From the inside view of the property, install the magnet bracket higher on the left side and lower on the right side. Manually close the gate completely and install the appropriate magnet bracket so that the opener stops at the desired closed position when the magnet senses the limit switch. Similarly, fully open the gate and install the appropriate magnet bracket so that the opener stops at the desired open position when the magnet senses the limit switch. Leave some space at both ends of the gate for buffering.
• Adjust the lower magnet to ensure that its center is aligned with the Lower Limit line on the limit switch box. Adjust the higher magnet to align its center with the Upper Limit line.
• Secure the magnet brackets to the rack with M5x12 Pan Head Screws, ensuring that the magnets are 20-30mm (0.8-1.2″) away from the limit switch box. Fine-tune the opener’s position if necessary, and then securely tighten all the nuts.
• Adjust the magnets to ensure that their centers are aligned with the marked line on the limit switch box.

Step 8: Engage the Clutch

• Push the release handle 90° counterclockwise.
• Turn the manual release key 90° counterclockwise and then remove it.

The terminal functions are detailed in the following table:

Terminal	Function
1 “L”	Input terminals for AC power, connected to the live wire of the power cord respectively.
2 “GND”	Input terminals for AC power, connected to the earth wire of the power cord respectively.
3 “N”	Input terminals for AC power, connected to the neutral wire of the power cord respectively.
4 “LA”	Output terminals for a warning light, directly connected to the warning light, providing the same voltage as the mains supply during gate operation, causing the warning light to flash. Ensure that the warning light has a rated voltage matching the motor voltage and a rated current of less than 1A.
5 “LB”	Output terminals for a warning light, directly connected to the warning light, providing the same voltage as the mains supply during gate operation, causing the warning light to flash. Ensure that the warning light has a rated voltage matching the motor voltage and a rated current of less than 1A.
6 “U”	Input terminals for the motor and built-in start capacitor, the terminals are pre-connected at the factory.
7 “W”	Input terminals for the motor and built-in start capacitor, the terminals are pre-connected at the factory.
8 “V”	Input terminals for the motor and built-in start capacitor, the terminals are pre-connected at the factory.
9 “UP”	Input terminals for a normally open limit switch, connected to the red wire of the limit switch, respectively.
10 “COM”	Input terminals for a normally open limit switch, connected to the black wire of the limit switch, respectively.
11 “DWN”	Input terminals for a normally open limit switch, connected to the yellow wire of the limit switch, respectively.
12 “+12”	Auxiliary output terminals, providing 12VDC power to accessories (rated output less than 100mA).
13 “GND”	Auxiliary output terminals, providing 12VDC power to accessories (rated output less than 100mA).
14 “PHO”	Receive signal input from a photocell sensor, operating on a normally open (NO) input basis, connected to “NO” terminal of the sensor respectively.
15 “COM”	Receive signal input from a photocell sensor, operating on a normally open (NO) input basis, connected to “COM” terminal of the sensor respectively. Control gate operation through a normally open dry contact signal input, commonly connected to push button, wired keypad, and external receiver for cyclic gate operation (open/stop/close/stop).
16 “O/S/C”	Control gate operation through a normally open dry contact signal input, commonly connected to push button, wired keypad, and external receiver for cyclic gate operation (open/stop/close/stop).
17 “XB2”	Accept the signal input of the gate opening, can only be connected to the normally open output of the TOPENS TEW3 vehicle sensor exit wand. The signal input will only be accepted when the adapter board of the TOPENS TEW3 vehicle sensor exit wand is properly connected to the control board.
18 “XB1”	Accept the signal input of the gate opening, can only be connected to the normally open output of the TOPENS TEW3 vehicle sensor exit wand. The signal input will only be accepted when the adapter board of the TOPENS TEW3 vehicle sensor exit wand is properly connected to the control board.

The specification of the power cord is 3C×0.75mm² (18AWG).

Connect the live wire and neutral wire of the power cord to control board terminal 1 “L” and terminal 3 “N”, respectively. And connect the earth wire to terminal 2 “GND”.

If the opener is installed on the left side of the driveway and the gate opens to left, set the opener to Left Open. If the opener is installed on the right side of the driveway and the gate opens to right, set the opener to Right Open. The factory default setting for DIP Switch #5 is ON, which corresponds to Left open.

The settings for DIP Switch #1 and #2 in Midway Mode are:

DIP Switch #	ON Position	OFF Position
1	4 Seconds	0 Second (Factory Default)
2	2 Seconds	0 Second (Factory Default)

The midway mode function is disabled when both DIP switches are set to OFF by default. The running time of the motor in midway mode is DIP Switch #1 + DIP Switch #2. Press button B on the remote control to activate the midway mode when the gate is in fully closed position.

The settings for DIP Switch #3 and #4 for Auto Close Time are:

DIP Switch #	ON Position	OFF Position
3	30 Seconds	0 Second (Factory Default)
4	60 Seconds	0 Second (Factory Default)

The auto close function is disabled when both DIP switches are set to OFF by default. The auto close time of the gate opener is DIP Switch #3 + DIP Switch #4. The auto close function should be enabled if a vehicle sensor exit wand is installed.

To adjust the Open Stall Force of the Gate Opener (OPEN Potentiometer) and the Close Stall Force of the Gate Opener (CLOSE Potentiometer), turn the potentiometer clockwise to increase the stall force, and counterclockwise to decrease it. Stall force regulates the gate’s sensitivity to obstacles during operation.

To program the remote control for the TOPENS RK990T:

Enter Programming Mode: Press and release the LNSW button on the control board. The LEARN LED will turn on, indicating that the gate opener is now in programming mode.

Program the Remote Control: Press the remote control button you want to program once, then press it again after the LED on the remote turns off. The LEARN LED will flash for 3 seconds and then turn off, indicating successful programming.

Press and hold the LNSW button until the LEARN LED turns from ON to OFF. Now all programmed remote controls have been erased.

For a Left Open Gate (TOPENS RK990T):

Adjusting the Open Limit Position:

Use the remote control to open the gate. If the gate stops halfway and fails to get to the desired open position, disengage the clutch. Use a screwdriver to loosen the screws on the lower (right) magnet bracket. Gently shift the magnet bracket slightly to the right, then tighten the screws firmly. Engage the clutch and test the gate.

If the gate opens over the desired open position, adjust the lower magnet bracket slightly to the left. Tighten the screw securely.

Repeat the above steps until the gate automatically stops at the desired open position.

For a Left Open Gate (TOPENS RK990T):

Adjusting the Close Limit Position:

Use the remote control to close the gate. If the gate stops halfway and fails to get to the desired closed position, disengage the clutch. Use a screwdriver to loosen the screws on the higher (left) magnet bracket. Carefully move the magnet bracket slightly to the left, then tighten the screws firmly. Engage the clutch and test the gate.

If the gate closes over the desired closed position, adjust the higher magnet bracket slightly to the right. Tighten the screw securely.

Repeat the above steps until the gate automatically stops at the desired closed position.

For a Right Open Gate (TOPENS RK990T):

Adjusting the Open Limit Position:

Use the remote control to open the gate. If the gate stops halfway and fails to get to the desired open position, disengage the clutch. Use a screwdriver to loosen the screws on the higher (left) magnet bracket. Gently shift the magnet bracket slightly to the left, then tighten the screws firmly. Engage the clutch and test the gate.

If the gate opens over the desired open position, adjust the higher magnet bracket slightly to the right. Tighten the screw securely.

Repeat the above steps until the gate automatically stops at the desired open position.

For a Right Open Gate (TOPENS RK990T):

Adjusting the Close Limit Position:

Use the remote control to close the gate. If the gate stops halfway and fails to get to the desired closed position, disengage the clutch. Use a screwdriver to loosen the screws on the lower (right) magnet bracket. Carefully move the magnet bracket slightly to the right, then tighten the screws firmly. Engage the clutch and test the gate.

If the gate closes over the desired closed position, adjust the lower magnet bracket slightly to the left. Tighten the screws securely.

Repeat the above steps until the gate automatically stops at the desired closed position.

To fine-tune the stall force for the TOPENS RK990T:

Initial Assessment: Use the remote control to open and close the gate, observing its movement.

Adjust the Stall Force: If the gate reverses or stops before reaching the fully closed or open position, increase the stall force by turning OPEN and CLOSE Potentiometers slightly clockwise.

Perform the Obstruction Test: Run the test after each force setting adjustment.

To perform the Obstruction Test for the TOPENS RK990T:

Operate the Gate: Open and close the gate with the remote control, ensuring that it stops at the proper open and close limit positions.

Setup for the Test: Place a solid, immovable object in the gate’s path to simulate an obstruction.

Test Gate’s Closing: Run the gate in the closing direction towards the obstruction. The gate should reverse upon contact with the solid object. If it does not, slightly decrease the stall force by turning CLOSE Potentiometer on the control board counterclockwise (towards MIN).

Test Gate’s Opening: Perform the same test with the gate moving in the opening direction. The gate should stop upon contact with the solid object. If it does not, slightly decrease the stall force by turning OPEN Potentiometer on the control board counterclockwise (towards MIN).

To program the TC188 Universal Keypad for the TOPENS RK990T using Wireless Mode:

Step 1 Program New Master Code: Factory default master code is 9999, all codes should be 4 digits in length. Use the sequence: SET 4 digits Old Master Code SET 01 SET 4 digits New Master Code SET 4 digits New Master Code SET.

Step 2 Add New Permanent Entry Code: Use the sequence: SET Master Code SET 02 SET Entry Code SET Entry Code SET.

Step 3 Program with the Gate Opener: Input the entry code of the keypad. Press and release the LNSW button on the control board. The LEARN LED will turn on. Press button A (or B) once, and the keypad LED backlight will flash quickly. Press it again after the backlight changes from a rapid flash to a slow flash. The LEARN LED will flash for 3 seconds and then turn off, indicating successful programming.

Step 4 Operate the Gate Opener: Input the entry code and then press the programmed button A (or B) to operate the gate. Within 3 seconds of pressing button A (or B), you can press the button again without re-entering the code to operate the gate.

To program the TC188 Universal Keypad for the TOPENS RK990T using Wired Mode:

Step 1 Remove the Battery.

Step 2 Wire Connection: Connect the “COM” and “NO” terminals to control board terminal 15 “COM” and terminal 16 “O/S/C”. Then connect the “9-24V AC/DC” terminals to control board terminal 12 “+12” and terminal 13 “GND”. Polarity does not matter for these connections. A 4C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included.

Step 3 Program New Master Code: Factory default master code is 9999, all codes should be 4 digits in length. Use the sequence: SET 4 Digits Old Master Code SET 01 SET 4 Digits New Master Code SET 4 Digits New Master Code SET.

Step 4 Add New Permanent Entry Code: Use the sequence: SET Master Code SET 02 SET Entry Code SET Entry Code SET.

Step 5 Operate the Gate Opener: Input the entry code and then press button A (or B) to operate the gate. Within 3 seconds of pressing button A (or B), you can press the button again without re-entering the code to operate the gate.

To program the TKP3 Wireless Keypad for the TOPENS RK990T:

Programming and Operation: Press and release the LNSW button on the control board. The LEARN LED will turn on. Press the button “OK” on the keypad and the LEARN LED will flash for 3 seconds and then turn off, indicating successful programming. Use the default password “888888” to operate the gate opener. Press “PIN” “888888″ and then press the button “OK” to operate the opener. Just one press of the button “OK”, the moving gate will stop for quick passing through.

Change the Password: Press “PIN”, input the old six digits password, and then press the “PIN” again, the LEARN LED will be ON. Input the new six digits password and then press the “PIN” to confirm the new setting, LEARN LED will flash for 3 seconds and then turn off which indicates the password has been changed successfully. Press “PIN” “new six digits password” and then press the button “OK” to operate the gate opener.

To program the TC173 Wireless Push Button for the TOPENS RK990T:

Programming and Operation: Press and release the LNSW button on the control board. The LEARN LED will turn on, indicating that the gate opener is now in programming mode. Press the push button once, then press it again after the LED on the push button turns off. The LEARN LED will flash for 3 seconds and then turn off, indicating successful programming. Each press of the button will cycle the gate through open, stop, close, stop, and open.

For the TEW3 Vehicle Sensor Exit Wand connection to the TOPENS RK990T control board:

Wire Connection:

• Connect the RED wire to control board terminal 12 “+12”.
• Connect the GREEN wire to control board terminal 13 “GND”.
• Connect the BLUE wire to control board terminal 17 “XB2”.
• Connect the BLACK wire to control board terminal 18 “XB1”.
• The sensitivity range adjustment board should be wired to the GREEN and YELLOW wires of the wand, regardless of the polarity.
• The exit wand adapter board must be inserted into the gate opener control board before using.

Key Installation Notes: Install the wand 7.5m to 30m (25ft. to 100ft.) away from the gate, and bury it 5cm (2″) deep from ground and 20cm (8″) from the driveway edge. Install the wand away from any power lines to avoid interrupting the detection signal. It is strongly recommended to enable the auto close function by referring to the Setting of the Control Board section in the installation manual to ensure home security.

For the TC175P Wired Keypad connection to the TOPENS RK990T control board:

Wire Connection:

• Connect the wires on the JP2 terminal of the wired keypad to the control board.
• Connect the RED wire to control board terminal 12 “+12”.
• Connect the BLACK wire to control board terminal 13 “GND”.
• Connect the BLUE wire to control board terminal 15 “COM”.
• Connect the PURPLE wire to control board terminal 16 “O/S/C”.

NOTE: A 4C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included. Please see detailed password setting steps in TC175P user manual.

For the HLR01 Homelink Remote Control Kit connection to the TOPENS RK990T control board:

Wire Connection:

• Connect terminal 1 to control board terminal 15 “COM”.
• Connect terminal 2 to control board terminal 16 “O/S/C”.
• Connect terminal 7 “+DC” to control board terminal 12 “+12”.
• Connect terminal 8 “DC-” to control board terminal 13 “GND”.

NOTE: A 4C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included. Please see detailed programming steps with Homelink system in HLR01 user manual.

For the JD110VY / JD230VY Warning Light connection to the TOPENS RK990T control board:

Wire Connection: Connect the warning light to control board terminal 4 “LA” and terminal 5 “LB”, regardless of the polarity. NOTE: A 2C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included.

For the TRF3 Reflection Photocell Sensor connection to the TOPENS RK990T control board:

Wire Connection:

• Connect the “10-25VAC / 12-30VDC” terminals to control board terminal 12 “+12″ and terminal 13 “GND”, regardless of the polarity.
• Connect the “NO” terminal to control board terminal 14 “PHO”.
• Connect the “COM” terminal to control board terminal 15 “COM”.

Key Installation Notes: Mount the photocell sensor at least 20cm (8″) above the ground. Power on the gate opener. Position the reflector directly opposite the mounted photocell sensor. The working light on the photocell sensor turning green indicates that the reflector is in the correct position. The maximum sensing range of the photocell sensor is 10m (33ft.). NOTE: A 4C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included.

For the TC102 Infrared Photocell Sensor connection to the TOPENS RK990T control board:

Wire Connection:

• For the emitter, connect the “~+” terminal to control board terminal 12 “+12″, connect the “~-” terminal to control board terminal 13 “GND”.
• For the receiver, connect the “~ +” terminal to control board terminal 12 “+12″, connect the “~ -” terminal to control board terminal 13 “GND”. Connect the “NO” terminal to control board terminal 14 “PHO”, connect the “COM” terminal to control board terminal 15 “СОМ”.

Key Installation Notes: Mount the photocell sensor at least 20cm (8″) above the ground. Place the receiver on the control box side of the gate opener, directly facing the emitter. Ensure that both the emitter and receiver are aligned with each other. If manual precise alignment is difficult, use a visible laser beam for assistance. The maximum sensing range is 20m (65ft.), and the recommended distance between the emitter and receiver is 3m to 14m (10ft. to 46ft.). Put the cables into PVC conduit and bury the conduit underground to prevent damage. NOTE: Connect the emitter to the gate opener with a 2C x 0.3 mm² (22AWG) cable. Connect the receiver to the gate opener with a 4C x 0.3 mm² (22AWG) cable. Cables are required but NOT included.

To program the M12 Remote Control with the ERM12 External Receiver for the TOPENS RK990T:

Before programming, ensure the M12 remote control has been erased from the control board to avoid conflicts.

Press and release the Learn Button on the receiver, the LED light will turn ON. Press the remote control button you want to program once, then press it again after the LED on the remote turns off. The LED Light on the receiver will flash for 3 seconds and then turn OFF indicating successfully programming.

For the TC148 Waterproof Wall Push Button & TC147 Wall Push Button connection to the TOPENS RK990T control board:

Wire Connection: Connect the push button to control board terminal 15 “COM” and terminal 16 “O/S/C”, regardless of the polarity. Each press of the button will cycle the gate through open, stop, close, stop, and open. NOTE: A 2C x 0.3 mm² (22AWG) cable is required for the wire connection, but it is NOT included.

Maintenance for the TOPENS RK990T system:

Routine Inspections:

• Inspect the Gate: Look for any signs of wear or damage on the gate and guide tracks.
• Check the Gate Opener: Ensure that the opener is securely attached to the concrete pad. Tighten any loose bolts and screws.
• Examine Cables and Wires: Check that all cables and wires are intact and free from corrosion. Ensure that the opener is properly earthed and the wire is securely connected.

Cleaning and Lubrication: Keep the gate opener and the surrounding area clean to prevent the accumulation of dirt, dust, leaves, and debris. Use a clean, dry cloth to wipe the gate opener shafts and gears, and lubricate them as needed.

Possible Solutions if the TOPENS RK990T opener does not run and the Power LED is OFF:

Step 1 Check Control Board Input Voltage: Verify that the input voltage of the control board matches the local AC power supply.

Step 2 Check the Power Switch: The power switch is OFF. Please ensure that the power switch is turned ON.

Step 3 Examine Control Board Fuse: Inspect the control board fuse and replace it with the backup fuse that comes with the gate opener if it is burnt out. Use a Ø5*20mm 10A 250VAC fast blow glass fuse for the 120VAC gate opener, or a Ø5*20mm 5A 250VAC fast blow glass fuse for the 230VAC gate opener.

Step 4 Check Control Board: Inspect the control board and replace it if needed.

Possible Solutions if the TOPENS RK990T gate opens to the set open position and stops, but does not return:

Step 1 Verify Magnet Position: Check if the magnet has been installed incorrectly. Adjust the magnet to the correct position as instructed in the manual. Then move the gate to the open and closed positions to check whether the limit switch can detect the magnet, and observe whether the UP and DN LED on the control board turn ON. The UP LED indicates the sensing status of the higher magnet, while the DN LED indicates the sensing status of the lower magnet.

Step 2 Check Limit Switch: Disconnect the limit switch wires from terminal ⑨ “UP”, terminal 10 “COM”, and terminal 11 “DWN” on the control board. Press the remote to operate the opener. If the motor runs normally in both directions, replace the limit switch. During the test, monitor the gate’s movement and use the remote to stop it if necessary to prevent the gate from running off the track.

Step 3 Check Control Board: Inspect the control board and replace it if needed.

Possible Solutions if the midway mode function is disabled on the TOPENS RK990T:

Step 1 Check DIP Switch Setting: Set DIP Switch #5 to ON for a left-opening gate and OFF for a right-opening gate. Check DIP Switch #1 and DIP Switch #2 and make sure the midway mode function is enabled.

Step 2 Verify Magnet Position: Check if the limit switch is properly sensed by the closing magnet when the gate is fully closed. Adjust the magnet’s position to ensure accurate sensing. The UP LED indicates the sensing status of the higher magnet, while the DN LED indicates the sensing status of the lower magnet. The LED will turn ON when it senses the magnet.

Step 3 Check the Remote Control: Reprogram the remote control, press Button B to test if midway mode functions correctly. If it does not work, use a new remote control and repeat the test.

Step 4 Check Control Board: Inspect the control board and replace it if needed.

Possible Solutions if the TOPENS RK990T gate opens but fails to close:

Step 1 Verify Photocell Sensor Function: Check if the photocell sensor is blocked or misaligned. Clear any obstructions, and ensure that the photocell sensor is properly aligned.

Step 2 Check Limit Switch: Disconnect the limit switch wires from terminal ⑨ “UP”, terminal 10 “COM”, and terminal 11 “DWN” on the control board. Press the remote to operate the opener. If the motor runs normally in both directions, replace the limit switch. During the test, monitor the gate’s movement and use the remote to stop it if necessary to prevent the gate from running off the track.

Step 3 Check Control Board: Inspect the control board and replace it if needed.

Possible Solutions if one of the remote controls does not work with the TOPENS RK990T:

Step 1 Check Remote Control Battery: Press the remote and check if the indicator light turns on. If it doesn’t, check the battery orientation and ensure the positive side is facing upward. If the polarity is correct, replace the batteries with two 3V CR2025 lithium button cells.

Step 2 Check Remote Control Programming: Ensure that the remote control is correctly programmed to the control board. If not, refer to the Program the Remote Control section in this manual to reprogram the remote.

Step 3 Check Remote Control Range: The maximum effective range of the remote control is 20 meters (65 feet). Try operating it again from a closer distance.

Possible Solutions if the TOPENS RK990T opener does not run and the Power LED is ON:

Step 1 Isolate the Issue with Wired Accessories: Disconnect all wired accessories from the control board. Test the gate operation. If the issue is resolved, reconnect the accessories one by one to identify the problem.

Step 2 Check Remote Control Programming: Ensure that the remote control is correctly programmed to the control board. If not, refer to the Program the Remote Control section in this manual to reprogram the remote.

Step 3 Check Thermal Protector: Inspect the thermal protector to see if the motor has overheated due to prolonged use. Wait 20 minutes for the motor to cool down.

Step 4 Verify Magnet Position: Check if the magnet has been installed incorrectly. Adjust the magnet to the correct position as instructed in the manual. Then move the gate to the open and closed positions to check whether the limit switch can detect the magnet, and observe whether the UP and DN LED on the control board turn ON. The UP LED indicates the sensing status of the higher magnet, while the DN LED indicates the sensing status of the lower magnet.

Step 5 Check Limit Switch: Disconnect the limit switch wires from terminal ⑨ “UP”, terminal 10 “COM” and terminal 11 “DWN” on the control board. Press the remote to operate the opener. If the motor runs normally in both directions, replace the limit switch. During the test, monitor the gate’s movement and use the remote to stop it if necessary to prevent the gate from running off the track.

Step 6 Check Control Board: Inspect the control board and replace it if needed.

Step 1 Check the Clutch: Ensure that the clutch for the emergency release is properly adjusted and not slipping.

Possible Solutions if the TOPENS RK990T gate stops or reverses during operation:

Step 1 Adjust the Stall Force: The opening or closing force is set too low. Turn the OPEN and CLOSE Potentiometers to increase the force.

Step 2 Check Gate Opener Motor: Use the release key to disengage the clutch, then manually slide the gate to ensure it slides smoothly without any obstructions or binding. Keep the clutch disengaged, and operate the opener with the remote control to check if the motor runs properly.

Step 3 Check Control Board: Inspect the control board and replace it if needed.

Possible Solutions if the TOPENS RK990T gate ignores the limit switch:

Step 1 Adjust the Magnet Position: Move the magnets toward the middle position so that the gate opener detects them earlier. Then press the remote to see if the gate stops at the desired position. If it doesn’t, proceed to Step 2.

Step 2 Check the Limit Switch Indication LED: Release the clutch and press the remote to run the motor. Then move the gate to the open and closed positions to check whether the limit switch can detect the magnet, and observe whether the UP and DN LED on the control board turn ON. The UP LED indicates the sensing status of the higher magnet, while the DN LED indicates the sensing status of the lower magnet. If the LED remains OFF, the magnet is not triggering the limit switch. Please proceed to Step 3.

Step 3 Check the Installation Position of the Magnets: The lower magnet bracket should be installed on the right side and the higher magnet bracket on the left side, as viewed from inside the property. Ensure that both the lower and higher magnets are positioned 20-30mm (0.8-1.2″) away from the limit switch box.

Possible Solutions if the TOPENS RK990T gate opens randomly:

Step 1 Check DIP Switch Setting: Set DIP Switch #5 to ON for a left-opening gate and OFF for a right-opening gate.

Step 2 Isolate the Issue with Wired Accessories: Disconnect all wired accessories from the control board. Test the gate operation. If the issue is resolved, reconnect the accessories one by one to identify the problem.

Step 3 Reprogram Remote Controls: Clear all existing remote codes from the control board and reprogram the remote controls.

Step 4 Check Control Board: Inspect the control board and replace it if needed.