PULSE 500 Series

• Check that the GM wiring on the control board is correctly connected to GM on the drive board.
• Power off the unit, then power it back on. After restarting, check the value of the encoder gain on the LCD screen. It should be within the range of 10–50, with the recommended range being 20–40.
• Measure the +24V across GM and COM on the control board to ensure the voltage is correct.
• If the voltage on the control board is within the proper range, proceed to check the voltage at the same terminals on the junction box and drive board.
• Ensure all connections are secure. Perform a pull test on the connections to verify their integrity.

• Turn off the operator and disconnect the battery backup to power off the encoder.
• Reconnect the power and battery backup. The operator will then display the message "Door is Ready: Press Open to Start".
• Press open button to reset the encoder. This should open the door to the hard stop bracket at the very top of the door.
• If the encoder resets before reaching the hard stop bracket, the door could be jamming or unbalanced. Ensure that the door’s tracks are clear, and check that the door is balanced by running a BALANCE CHECK via the ADVANCED MENU.

For door obstructions or jams:

• Make sure the door latch is not engaged.
• Look for any obstructions in the door's path or if the door is jammed in its tracks.
• To resolve, remove the obstruction or free up the door, then turn off the AC power and cycle test the door under battery backup power. This is to ensure that the problem is not related to the main power supply and to check the door's operation on an alternative power source.

For pusher spring issues:

• Pusher springs can prevent the door from reaching the Open limit.
• To resolve, remove the pusher springs and install the upper limit brackets supplied with your door operator. As an alternative, you can reset the OPEN limit so that the pusher springs are not engaged.

Balance the door:

• Ensure the door is properly balanced by using BALANCE CHECK from the ADVANCED MENU, and adjust as necessary.

Check balance accuracy:

• After the door balance check is complete, make sure the opening and closing numbers are close to each other.
  Note: If the difference is higher than 10%, then the door is not balanced.

Jog Mode for obstruction detection:

• If the door is balanced but the issue persists, then access the STARTUP MENU, and select Jog Mode, to check if there is any obstruction or door is jammed due to obstruction.

Power cycle and check Encoder Gain:

• Power off the unit, then power it back on. Check the value of Encoder Gain on the LCD screen. It should be within the range of 10 – 50, with the recommended range being 20 – 40. If it is higher than that, it indicates that the magnet is too far from the encoder.

Adjust Open/Close slow speed settings:

• If necessary, increase the Open/Close slow speed settings in the STARTUP MENU.

Increase Motion Detect Time:

• If still no luck, you can raise the Motion Detect Time setting in the ADVANCED MENU, to enhance movement recognition.

• First, check that the door’s path and rails are clear of any obstacles.
• If they are already clear, run a BALANCE CHECK from the ADVANCED MENU to check the door’s balance.
• If the door is balanced, the ratio between the 2 numbers displayed on the LCD screen under Open and Close should be under 10%.
• If the door is still overcurrenting, recalibrate the door under the ADVANCED MENU.
• You can also try to increase the Closing/Opening Force under the ADVANCED MENU.

• First check the reversing and activation devices.
  Here's how to check if the reversing devices are working correctly.
• If the devices are working properly, then go to the STARTUP MENU and adjust the door's open limit to be 2 - 4 inches lower than the hard-stop limit.
• Another potential fix is to check that the door is not moving or sliding once it reaches its open limit.
  If the door is sliding once it reaches the open limit, check the balance of the door and adjust the pusher springs.
  Besides door balance, pusher springs end stops could also cause the door to shift out of place causing the closing timer to get stuck (this is more common to older PULSE models).

• First inspect the gearbox and key as outlined in the installation manual .
• Then, perform a BALANCE CHECK on the door from the ADVANCED MENU.
• Finally, consider lowering the opening or closing speed via the STARTUP MENU.

• In battery backup mode, only the push button at the front of the control box works.
  Ensure these buttons are not stuck.
• Another cause could be damaged or stuck relays.
  To fix this, try tapping the battery backup relays located on the bottom left of the control board with the back of a screwdriver to unjam them.
• If none of these options work, please reach out to technical support for further assistance.

Adjust pusher springs and limit brackets:

• If the door does not fully open to the Open limit, or the LCD panel shows the message "Door is Stopped", remove the pusher springs and replace them with the supplied limit brackets.
• Alternatively, reset the Open Limit to avoid engaging the pusher springs and set all activation devices to open the door to the set limit.

Reset the Close Timer:

• If the door isn't closing with the closing timer, ensure the Close Timer is set correctly as per the installation manual.

Check the reversing device:

• Ensure a functional reversing device is correctly installed in either the R1 or R2 terminal. Check wiring, alignment, and test functionality if already installed.

For newer units, check the circuit breaker:

• If the door is not operating, the circuit breaker may have tripped. Locate the breaker and press the reset button on top to restore power.

For missing jumper:

• The issue may be caused by the jumper between the 'S' and '+24' terminals being removed and no push-button station has been wired in its place. To fix the issue, reinstall the jumper.

For incorrect push button station configuration:

• The issue may also stem from a third-party push button station lacking a Normally Closed (NC) contact for the STOP button. Replace the push button station (or just the STOP button contact) with one that has an NC contact on the STOP button.

For incorrect wiring of push button station:

• Incorrect wiring of the third-party push button station could also lead to this problem. Check and correct the wiring as needed to ensure proper operation.

• Ensure that the V+, GM, GS, and COM cables are correctly connected in the junction box and control board.
• Also make sure that V+, GM, and GS are approximately +24V DC when measured against COM.
• Additionally, disconnect all peripheral devices such as photo-eyes, activators, door locks, or interlocks, as they could be shorting the control board.
• If none of these steps work, please contact technical support for further assistance.

• Ensure the operator is hooked up to the door with a hard stop or limit switch.
• Check the encoder gain value displayed on the LCD screen ( here's how ), then power off the unit and power it on again and check the message displayed on the screen.
• If the message shown on the LCD says: "Door Is Ready: Press Open to Start", it means that the encoder has been reset due to a power outage.
• In that case, you have to check if the built-in battery backup is connected and working as expected.

• Make sure a photo-eye is hooked up and aligned.
• Due to UL 325 safety standards, a photo-eye is required to be aligned for the automatic closing features of the door.
• Please ensure that a primary photo-eye is hooked up into either R1 or R2 terminal and the photo-eye is aligned.
• To check if your photo-eyes are working fine, please refer to the troubleshooting article: How to Check if Reversing Devices Are Working Fine? .

For loose/misaligned/obstructed/miswired reversing device:

• Applicable to photo-eye, reflector or thru-beam sensors. Clean the sensors and the reflector, clear any obstructions, and realign them as necessary. Re-check wiring as shown in the installation manual . Also, ensure that no rope or weather-stripping is causing interference.

For too sensitive Force Monitoring setting:

• Adjust the Closing Force in the ADVANCED MENU to a less sensitive setting, where value 1 is the most sensitive, and value 20 is the least sensitive.

For malfunctioning third-party reversing device:

• Disconnect all third-party reversing devices. Then, install a jumper between reversing input terminal 3 and +24 terminal and test again. Reconnect the reversing devices one by one to identify the defective device. For detailed guidance, please refer to your installation manual.

Ensure the door is unobstructed:

• Check that there are no obstructions preventing the door from moving freely.

Check door balance:

• Perform a BALANCE CHECK through the operator's ADVANCED MENU to confirm the door's balance.

Redo door limits:

• If the door is confirmed to be balanced and free of obstructions, proceed to redo the door limits.

• Try pressing the close button again to close the door.
• If the door closes fully, check the LCD screen to see what caused the door to stop.
• If the door does not close, try resetting the door limits.
• If there is only a gap in some parts of the door, it indicates that the floor is not level or that the door itself is not level on the two cables.
• To fix this, try to level the door as good as you can, then increase the CLOSE SLOW SPEED to high.
  This will make the door overshoot the close limit and use more torque on the soft close portion to force the door to close completely.

Power off and restart the operator:

• Power off the unit.
• Power it back on.
• After restarting, the LCD will display the message: “Checking… PULSE” followed by the voltage range.
• The encoder gain value will be shown briefly on the voltage screen.

Alternative method (if restarting is not possible):

• Enter the setup menu by holding the stop button for 10 seconds.
• Exit the menu by pressing the stop button again, which will reboot the unit.

Recommended encoder gain values:

• The encoder gain value should be within 10–50.
• The recommended range is 20–40.

Adjusting encoder gain:

• If the encoder gain is too low, loosen the 4 screws on the encoder (located on the top or side of the gearbox).
• If the encoder gain is too high, tighten the same 4 screws.

By checking the LCD for a UL325 Compliant or Non-Compliant message:

• First power off the unit and then power it on again, and observe the LCD screen.
• If the LCD screen displays the message: "UL325 Compliant", then the reversing devices are working as expected.
• If the LCD screen displays the message: "UL325 Non-Compliant!", then the reversing devices are not detected.

Note: Make sure the reversing devices won’t shake while the door is closing. If they are, then attach the reversing devices directly to the wall instead of the door rails.

• Under PUSH BUTTON STATION terminals on the control board, use the 2 normally open connections on the universal receiver to connect:
  • +24 and O(pen)
  • +24 and C(lose).
• Then, connect +24 and S(top) on the normally closed connection on the receiver.
• You may power the receiver using any +24 and COM terminal.

• Wire the solid black cables from the receiver and transmitter to the COM terminal on the control board;
• Wire the dotted black and white cables from the receiver and transmitter to the R2 terminal on the control board;
• Remove factory supplied resistor between R3 and +24, and wire that into R2 and +24;
• Connect normal jumper cables between R1 and P+, and R3 and +24 to bypass those inputs;
• Alternatively you can hook up a second photo-eye into R1, then a third photo-eye into R2 terminal.

• Run a full open and close cycle on the door; this will refresh the screen.
• Hold stop for 10 seconds to enter STARTUP MENU, then press stop again to exit; this will reboot the operator.
• Disconnect the operator from power for 10 seconds then plug it back in; this will fully reboot the operator.

• Check for +24V across GS and COM on the control board to ensure the voltage is present and correct. Verify that the wiring to these terminals is correctly and securely connected.
• If there's no voltage present, proceed to check the voltage between GS and COM at the junction box. This helps determine if the issue is localized to the control board or elsewhere. Continue tracing the voltage path up to the drive board to confirm if the appropriate voltage is present there.
• If the voltages are confirmed to be correct at the drive board, it indicates that the issue may lie with the connection wiring at either the junction box or the control board. Double-check these connections to ensure they are properly and securely made.

Check the power fuse on the junction box:

• If it needs replacement, use the correct fuse type by referring to the fuse specifications article for details.

Check incoming AC voltage:

• If the fuse is good but there are no voltages, check incoming voltage 120V/240V AC on the drive board.

Measure DC voltage:

• If the AC power is good, then measure DC voltage across V+ and COM on the drive board.
  If there are no voltages on the drive board, then please contact technical support for further assistance.

• This indicates that the control board at the bottom and the drive board at the top are not communicating properly. This communication occurs over the GS cable with voltage being supplied from the control board.
• Check that there is 24V between GS and COM.
• If there is not, try disconnecting the GS cable and measuring between the GS and COM terminals:
  • If you get 24V with the GS cable disconnected, there is a short somewhere up the line.
  • If you do not get 24V with the GS cable disconnected, the control board is either not powered, or is possibly shorted or damaged.
• If the latter is the case, please contact technical support for further assistance.

R1 terminal:

• The R1 input is the primary input for reversing devices when there are no monitored devices in the system.
• The R1 input is special because it is used in tandem with the P+ terminal.
• P+ is a +24V output toggled off and on during operator boot-up and on close to check for a delay with R1.
• This delay indicates that there is a device connected to the R1 terminal instead of a jumper.
• This is done to stay compliant with UL 325 standards which require at least one photo-eye to be connected to the system for the door to close automatically.

R2 terminal:

• The R2 input is for monitored devices and takes priority over R1 when connected.
• This input is always communicating with the photo-eye itself and is the safest.

R3 terminal:

• The R3 input is a simple relay-based input that requires +24V to stay active.
• This input can only be used as a secondary or tertiary input when R1 and/or R2 are hooked up.

For single button operation:

• Only a single normally open channel is required

If you are using an unmonitored photo-eye:

• First, ensure that it toggles when blocked and unblocked.
• Next, verify that the wiring is correct and that the reversing input (R1, R2, or R3) is getting +24V when the photo-eye is aligned.
• If the photo-eye behaves normally when the door is stationary but does not trigger the door to reverse when moving, it could be getting jammed by the frequency of the motor when it is running.
• Try changing the PWM frequency in the ADVANCED MENU.

If you are using a monitored photo-eye:

• Check the value of the resistor powering the photo-eye between R2 and +24 terminals.
• For the Vitector OPTOEYE photo-eyes provided with some PULSE door operators, a 1K ohm resistor is required.

• Ensure that you are pressing and holding the stop button for 10 seconds.
• If the operator fails to enter the Startup menu, try rebooting the operator.
• Make sure no cables are loose on the back of the stop button or the terminal connections on the control board.
• With a multimeter, check that the stop button makes continuity when pressed.
• Alternatively, measure the DC voltage on the two connections on the back of the stop button: it should be 24V when unpressed and 0V when pressed.