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LiftMaster SW420 Support Question

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Question posted by chetzema on September 11th, 2012

Periodically Will Not Close.

dual gate opener woks fine most times, however sometimes will not close.

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Related LiftMaster SW420 Manual Pages

SW420 GL BOARD Manual - Page 1

THIS MANUAL IS TO BE LEFT WITH THE PROPERTY OWNER. MODEL SW420 IS FOR VEHICULAR PASSAGE GATES ONLY AND IS NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE. VISIT WWW.LIFTMASTER.COM TO LOCATE A PROFESSIONAL INSTALLING DEALER IN YOUR AREA. GLCONTROLLER BOARD MODEL SW420 LIGHT DUTY SWING GATE OPERATOR 2 YEAR WARRANTY Serial located on electrical box cover...

SW420 GL BOARD Manual - Page 2

..., you MUST read and fully understand this Signal Word on the following pages, it . HARDWARE KIT SW420 (K77-SW420) PART NO. 01-G0582 02-401-SP 07-2705 10-2111 11-2754 12-2727 40-3505 80...-10026 80-206-65 80-2754 82-HN38-16 82-HN38-18 82-SH37-10 85-FW-38S DESCRIPTION Safety Gate Brochure Stop Button Arm Stop Gate...

SW420 GL BOARD Manual - Page 4

...garage, retail store or other location not intended to operate the operator open and close . Non-contact sensors such as gate edges or Type D- Constant pressure control. 4 For Example: For a slide gate... six types of contact with vehicular swing gates. inherent (built into the operator) entrapment sensing and at any time without prior warning. ENTRAPMENT PROTECTION TYPES Type...

SW420 GL BOARD Manual - Page 5

... Telephone Entry System STREET Interrupt (Safety) Loop Photo eye for close cycle DUAL SWING GATE SYSTEM Photo eye for open cycle Run twisted wire* from loop to operator Seal Loops* Shadow Loop Interrupt (Safety) Loop 4' (1.2 m) Typical 1-1/2" (37 mm) Loop Wire* Layer 1/4" (6 mm) or larger depending ...

SW420 GL BOARD Manual - Page 6

... with a separate access opening and closing to a minimum of 4' (1.2 m) above the ground at the bottom edge of a vertical barrier (arm). 6 Care shall be located where the transmission of the signals are guarded or screened from the bottom of the gate to reduce the risk of travel of a horizontal slide gate are not obstructed or...

SW420 GL BOARD Manual - Page 7

... APPLICATIONS 2.1 Any non-automated gate that time. 3. VEHICULAR HORIZONTAL SWING GATES 4.1 The following provisions shall apply to Class 1, Class II and Class III vehicular horizontal swing gates: 4.1.1 Gates shall be designed, constructed and installed so as a wall, pillar or column, and a swing gate when in the open position or the fully closed positions. VEHICULAR HORIZONTAL SLIDE...

SW420 GL BOARD Manual - Page 8

...; Locate entrapment protection devices to protect in BOTH the open into public access ways. SAFETY PRECAUTIONS FOR SWING AND ORNAMENTAL "GRILL TYPE GATES" WARNING To prevent SERIOUS INJURY or DEATH from a moving gate and RIGID objects, such as posts. • A swinging gate shall NOT open and close gate cycles. • Locate entrapment protection devices to protect between...

SW420 GL BOARD Manual - Page 12

... this time. 4. Mark the point on the gate where the gate bracket will be installed on Operator Arm Stop (Left Open) Arm Stop Kit K75-18624 ADVERTENCIA PRECAUCIÓN Gate 36-1/2" Hinge Pin (Approximately) Fence Gate Bracket Extension Arm 16" 33-1/2" 28" Control Arm Arm Stop 26" Operator Shaft 12 Secure the extension arm to the closed...

SW420 GL BOARD Manual - Page 14

... dedicated circuit and well protected. ATTENTION POWER WIRING INSTALLATION Wiring SpecifiAcatiVonEs (SRTRTANIDSEDSCEOPMPEREWNIRET) On a Dual Gate System, each unit must be on ITS OWN separate circuits WIRE GAUGE 6 • ...must be sure to follow ALL specifications and warnings described below. We recommend that time the unit may result in SEVERE INJURY to persons and/or damage to operator...

SW420 GL BOARD Manual - Page 16

... HOME OR OFFICE USE. AVERTISSEMENT 3. The opener will close for changing the code setting or replacing To prevent possible SERIOUS INJURY or DEATH, the use . • Activate gate or door ONLY when it overrides the safety reversal devices. It must be set at NORMAL • ALWAYS keep gate or garage door in the "M" (Momentary) position, the contacts...

SW420 GL BOARD Manual - Page 19

... pass through the SAM system. 4. At this gate system balances the demands of time or b. Use a loop system to close the barrier gate after a preset amount of speed during high traffic periods with security during high traffic times, connect the device's N/O relay output to latch the slide or swing gate open cycle. 3. If another authorized vehicle accesses the...

SW420 GL BOARD Manual - Page 23

...LED should start to do so may result in an 8 second period. Install a jumper on in improper and unsafe operation. FORCE CONTROL...(LEDS AND CODES) There are closed. The number is the count of the number of times the LED is used to differentiate...The motor will need to the gate throughout the entire process. 2. If either the hard open and close input terminals. The LEDs are illuminated...

SW420 GL BOARD Manual - Page 26

... of a "second unit" for a time period of one second or more of no communications. NOTE: For single unit applications, a jumper must be completed in stand alone mode prior to pause the gate during the close cycle. The second operator will be enabled by activating the interrupt loop, soft open or hard open limit when activated during...

SW420 GL BOARD Manual - Page 27

...not a major change in the operator. Measure the voltage at terminals R1 & R2 in a dual gate dip switches. Make sure there is good, replace the control board. NOTE: Repeated motor problems ...indicate poor primary power. Check the yellow If the yellow LED blinks six times there is solid the board needs to the programming jumper across terminals J5-1 & J5-2. ...

SW420 GL BOARD Manual - Page 28

... programmed correctly. If the operator now runs without coming into contact with incorrectly. Programming changes do so will run in order to page 34. 28 Open photo eye reverses gate closed when activated during opening. Check the red input status LEDs, D11-D31, for dual gate operation. POSSIBLE CAUSES SOLUTION Failure to fail. The...

SW420 GL BOARD Manual - Page 30

...RADIO COMMAND SHADOW +24 VDC CLOSE STOP SOFT OPEN HARD OPEN INT. CLOSE 24 VAC-COMMON DC-GND LOCK 1 LOCK 1 ALARM 1 ALARM 1 RPM SENSOR R4 R3 3 OPTION (W) (RD) R1 SEE NOTE 4 J4 DUAL GATE 1 2 SEE NOTE 1 PRIMARY... & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: SW420 1/3 115V & 230V - 1 PHASE ONLY 845 Larch Avenue, Elmhurst, IL 60125 G1977 DRAWING NUMBER: 30 REV: C OPEN OBS.

SW420 GL BOARD Manual - Page 34

... (N.O.) OBSTRUCTION OPEN EDGE/PHOTO EYE INPUT (N.O.) OBSTRUCTION CLOSE EDGE/PHOTO EYE INPUT (N.O.) RESIDENTIAL RADIO (SINGLE BUTTON) INPUT (N.O.) SW420 Operator 34 WARNING: All controls that you follow the instructions provided by the manufacturer when installing and adjusting any control device. Also, always install the controls where the user has full view of gate operation. * All...

SW420 S3 BOARD Manual - Page 4

... contains the two pieces of five or more single family units, hotel, garages, retail store, or other locations not intended to four single family dwelling or a garage or parking area. CLASS 1 A vehicular gate operator or system that is included. PART # SW420 02-041-SP 07-2703 07-2704 40-3505 07-2705 10-2111...

SW420 S3 BOARD Manual - Page 10

.... 4 Select the preferred method of high voltage compartment unless power is off. 10 Preparing the Installation Operator Preparation 1 Open the service cover on the operator by changing the two dip switches. The SW420 is the major component of the electrical box and settings can be routed to the large double gang electrical...

SW420 S3 BOARD Manual - Page 17

.... System Features System Features 17 01-G0610F12 Figure 11: SW420 CONTROLLER Visible/Audible Devices ACTIVITY LED Steady indication when gate is at either open limit or midstop only. back to gate movement, and stay on the module are Open, Stop, and Close. Stop will work as a single button (Open, Close, Stop). Figure 12 SINGLE BUTTON CONTROL (SEQUENCE OF...