User manual CHAMBERLAIN BG770

[. . . ] OWNER'S MANUAL MODELS BG770 & BG790 V E H I C U L A R B A R R I E R G AT E O P E R AT O R MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE TABLE OF CONTENTS SPECIFICATIONS Operator Specifications . . 3 IMPORTANT NOTES · BEFORE attempting to install, operate or maintain the operator, you MUST read and fully understand this manual and follow all safety instructions. · These instructions are intended to highlight certain safety related issues. These instructions are not intended to be comprehensive. [. . . ] Position the AUXILIARY CLOSE cam slightly ahead of the CLOSE cam. When the gate arm is on its down travel, the AUXILIARY CLOSE switch will activate just before the CLOSE switch. When the cam is in the desired position, retighten the set screw. OPEN LIMIT SWITCH The OPEN limit switch is preset at the factory. This setting may have to be fine tuned after running the unit for the first time. Loosen the OPEN cam and rotate in the open direction until the switch is activated (Figure 12). Figure 12 Open Limit Switch Close Limit Switch Auxiliary Close Limit Switch OPEN Direction CLOSE Direction 11 O P T I O N A L A C C E S S O R I E SWARNING VEHICLE DETECTORS Almost all types of vehicle detectors may be used in conjunction with both model BG770 and BG790. More than one detector may be connected to the gate, and may be mounted inside of the cabinet. Connect the detector(s) according to the instructions on the wiring diagrams supplied with the gate and with the detector itself. FACTORY SUPPLIED PLUG-IN DETECTORS LiftMaster P/N 71-416-7NH = 24V PLEASE NOTE: Previous models used 115V detectors (P/N 71-416-3NH). Snap the detector onto one set of the four board mount standoffs located on the inside of the electrical cabinet. Plug the harness into the connector marked "OPEN. " 2. Connect the two loop wires to terminals P1 and P2 as shown on the wiring diagram. Snap the detector onto one set of the four board mount standoffs located on the inside of the electrical cabinet. Plug the harness into the connector marked "HOLD OPEN. " 2. Connect the loop wires to terminals P3 and P4 as shown on the wiring diagram. CAUTION Turn off power BEFORE working inside gate enclosure. CARD READERS, KEYPADS OR OTHER Almost all types of access control devices may be connected to models BG770 and BG790. More than one device may be connected in parallel. All devices connected according to the instructions below will open the gate and reverse the gate if it is closing. AVERTISSEMENT ATTENTION MOUNTING LOCATION Mount or install the access control device within sight of the gate and according to the instructions supplied with the device. Some devices require their own power supply. Do not use the 24 volt power in the gate to supply other devices. Use either direct line voltage (115V or 230V) or other external power source as required by the particular device. NOTE: Most access control devices have an isolated, normally open output contact to connect to the gate. [. . . ] 4) SEE REVERSE SIDE FOR INTERNAL OPERATOR WIRING. 5) DO NOT CONNECT INPUT POWER LINES TO L1 & L2 TERMINALS. POWER LINES MUST BE CONNECTED TO THE POWER SWITCH. 23 WARRANTY POLICY AND SERVICE LIFTMASTER® ONE YEAR LIMITED WARRANTY The Chamberlain Group, Inc. warrants to the final purchaser of this product, for the structure in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of one year from the date of purchase. [. . . ]