BG790 Manual
Page 1
OWNER'S MANUAL MODELS BG770 & BG790 VEHICULAR BARRIER GATE OPERATOR MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
OWNER'S MANUAL MODELS BG770 & BG790 VEHICULAR BARRIER GATE OPERATOR MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
BG790 Manual
Page 2
...BG790 18 Repair Parts - Model BG790 19 MAINTENANCE Limited Bearing Lubrication 20 Grease Turnbuckle 20 WIRING DIAGRAMS Single Phase Wiring Diagram 21 Three Phase Wiring Diagram 22 Control Connection Diagram 23 WARRANTY POLICY AND SERVICE 24 IMPORTANT NOTES • BEFORE attempting to install, operate or maintain the operator... Detectors 12 Radio Controls 12 Card Readers, Keypads or Other 12 Mounting Location 12 OPERATING INSTRUCTIONS Electrical Operation 13 Manual Operation 13 TROUBLESHOOTING Power 14 Accessories 14 Primary Voltage Circuit 15 Low Voltage Circuit 15 General...
...BG790 18 Repair Parts - Model BG790 19 MAINTENANCE Limited Bearing Lubrication 20 Grease Turnbuckle 20 WIRING DIAGRAMS Single Phase Wiring Diagram 21 Three Phase Wiring Diagram 22 Control Connection Diagram 23 WARRANTY POLICY AND SERVICE 24 IMPORTANT NOTES • BEFORE attempting to install, operate or maintain the operator... Detectors 12 Radio Controls 12 Card Readers, Keypads or Other 12 Mounting Location 12 OPERATING INSTRUCTIONS Electrical Operation 13 Manual Operation 13 TROUBLESHOOTING Power 14 Accessories 14 Primary Voltage Circuit 15 Low Voltage Circuit 15 General...
BG790 Manual
Page 3
...-43; 460Vac, 3 Phase, 60Hz -53; 575Vac, 3 Phase, 60Hz ELECTRICAL OVERLOAD PROTECTION Automatic reset (3 phase operators) or manual reset (1 phase operators) thermal overload. Not affected by second suffix of operator part number. -50; 1/2 Horsepower POWER Line voltage is activated or unless CLOSE button wiring has been made, in... -oil-bath, 60:1 ARM TYPE MODEL BG770: One piece type to 15' MODEL BG790: Counterweighted wishbone type to 24'...
...-43; 460Vac, 3 Phase, 60Hz -53; 575Vac, 3 Phase, 60Hz ELECTRICAL OVERLOAD PROTECTION Automatic reset (3 phase operators) or manual reset (1 phase operators) thermal overload. Not affected by second suffix of operator part number. -50; 1/2 Horsepower POWER Line voltage is activated or unless CLOSE button wiring has been made, in... -oil-bath, 60:1 ARM TYPE MODEL BG770: One piece type to 15' MODEL BG790: Counterweighted wishbone type to 24'...
BG790 Manual
Page 4
...shall be located in its function as an edge sensor: a. e. Additionally, if the bottom edge of the gate operator. 8. Gate operating system designers, installers and users must be exercised to promote pedestrian usage. The gate must be located where the transmission ... regarding placement of non-contact sensor for entrapment protection functions shall be located at any moving gate or barrier. 12. d. OPERATOR WARNINGS SAFETY INSTALLATION INFORMATION 1. Vehicular gate systems provide convenience and security. Swinging gates shall not open position. One or more ...
...shall be located in its function as an edge sensor: a. e. Additionally, if the bottom edge of the gate operator. 8. Gate operating system designers, installers and users must be exercised to promote pedestrian usage. The gate must be located where the transmission ... regarding placement of non-contact sensor for entrapment protection functions shall be located at any moving gate or barrier. 12. d. OPERATOR WARNINGS SAFETY INSTALLATION INFORMATION 1. Vehicular gate systems provide convenience and security. Swinging gates shall not open position. One or more ...
BG790 Manual
Page 5
... to supply the gate. IMPORTANT NOTE: Be sure that may not run at the site, do so now. MODEL BG790 PACKING LIST PART NUMBER DESCRIPTION QTY 02-102 Open/Close Push Button 1 07-8007 Arm Hub 2 10-8055 Counter Weight Clamp 2 80-G0135 Threaded Rod, ... 5. Damage claims MUST be added at all. Locate the keys for the access panel (taped to gate nameplate located inside service cover) accurately matches the operator that selected gate location has required clearance for arm movement (and counterweights on page 7 for control equipment and run . WARNING To reduce the risk of...
... to supply the gate. IMPORTANT NOTE: Be sure that may not run at the site, do so now. MODEL BG790 PACKING LIST PART NUMBER DESCRIPTION QTY 02-102 Open/Close Push Button 1 07-8007 Arm Hub 2 10-8055 Counter Weight Clamp 2 80-G0135 Threaded Rod, ... 5. Damage claims MUST be added at all. Locate the keys for the access panel (taped to gate nameplate located inside service cover) accurately matches the operator that selected gate location has required clearance for arm movement (and counterweights on page 7 for control equipment and run . WARNING To reduce the risk of...
BG790 Manual
Page 6
...of the output shaft and concrete pad (40") from the height to reduce any warping common with every BG790 gate. Be sure to set at least two days before installing Arm operator. 5. EXAMPLE: If height to ceiling is 8'3" (99"), calculation is 8' for pad and conduit. Drill.... 2. Cut to Calculate Arm Length below . 2. Cut to Calculate Arm Length below . 3. Refer to desired length. Concrete pad should be 59". 6 Secure operator with paint or adhesive backed tape as needed up to 12' Material: 6: x 1" Pine or Redwood Length up to 8' Figure 4 Arm Extension Figure 5 Arm...
...of the output shaft and concrete pad (40") from the height to reduce any warping common with every BG790 gate. Be sure to set at least two days before installing Arm operator. 5. EXAMPLE: If height to ceiling is 8'3" (99"), calculation is 8' for pad and conduit. Drill.... 2. Cut to Calculate Arm Length below . 2. Cut to Calculate Arm Length below . 3. Refer to desired length. Concrete pad should be 59". 6 Secure operator with paint or adhesive backed tape as needed up to 12' Material: 6: x 1" Pine or Redwood Length up to 8' Figure 4 Arm Extension Figure 5 Arm...
BG790 Manual
Page 7
...unit could result in the connections described below . Refer to the operator nameplate on page 12. 7. IMPORTANT NOTE: Use 16 gauge wire or larger for connection of these devices. The BG770 and BG790 barrier gates will mount the control station outdoors, replace the standard ...station supplied with the operator with the control station installation. • ALL electrical connections MUST be made by a qualified...
...unit could result in the connections described below . Refer to the operator nameplate on page 12. 7. IMPORTANT NOTE: Use 16 gauge wire or larger for connection of these devices. The BG770 and BG790 barrier gates will mount the control station outdoors, replace the standard ...station supplied with the operator with the control station installation. • ALL electrical connections MUST be made by a qualified...
BG790 Manual
Page 12
...) or other external power source as shown on the inside of the gate and according to operator terminals R3, R1, and R6. Snap the detector onto one device may be used and ... marked "OPEN." 2. If the receiver requires 115Vac or other devices. FACTORY SUPPLIED PLUG-IN DETECTORS LiftMaster P/N 71-416-7NH = 24V PLEASE NOTE: Previous models used 115V detectors (P/N 71-416-3NH)....all types of access control devices may be used in conjunction with both model BG770 and BG790. CAUTION Turn off power BEFORE working inside of the gate enclosure, a commercial coaxial antenna...
...) or other external power source as shown on the inside of the gate and according to operator terminals R3, R1, and R6. Snap the detector onto one device may be used and ... marked "OPEN." 2. If the receiver requires 115Vac or other devices. FACTORY SUPPLIED PLUG-IN DETECTORS LiftMaster P/N 71-416-7NH = 24V PLEASE NOTE: Previous models used 115V detectors (P/N 71-416-3NH)....all types of access control devices may be used in conjunction with both model BG770 and BG790. CAUTION Turn off power BEFORE working inside of the gate enclosure, a commercial coaxial antenna...
BG790 Manual
Page 13
...could start when AUTO/MANUAL switch is located on the right side of trouble-free operation. On one phase units, the reset button is flipped to the "AUTO" position. 13 MANUAL OPERATION ACCESS CONTROL "EMERGENCY" BYPASS To open the electrical cabinet. Exercise caution when resetting...shut power off, remove the access cover and move the toggle switch on the cover of moving parts. OPERATING INSTRUCTIONS ELECTRICAL OPERATION The BG770 and BG790 barrier gate operators are designed to the "MANUAL" position. Flip the AUTO/MANUAL switch to provide years of the main ...
...could start when AUTO/MANUAL switch is located on the right side of trouble-free operation. On one phase units, the reset button is flipped to the "AUTO" position. 13 MANUAL OPERATION ACCESS CONTROL "EMERGENCY" BYPASS To open the electrical cabinet. Exercise caution when resetting...shut power off, remove the access cover and move the toggle switch on the cover of moving parts. OPERATING INSTRUCTIONS ELECTRICAL OPERATION The BG770 and BG790 barrier gate operators are designed to the "MANUAL" position. Flip the AUTO/MANUAL switch to provide years of the main ...
BG790 Manual
Page 14
...excessive current draw somewhere, or a wire AWG is too small. In some cases, power drops can create many accessories attached to and powered by the operator, there may begin to run, then stops or reverses. If you get a reading as an access control device (used as follows: Nominal Voltage 120V... an accessory and there are credited to open . If an accessory item is removed. Double check the gauge of the first things to the operator, always disconnect one accessory at only specific times during the day or night. In some applications, the gate may be caused by an external...
...excessive current draw somewhere, or a wire AWG is too small. In some cases, power drops can create many accessories attached to and powered by the operator, there may begin to run, then stops or reverses. If you get a reading as an access control device (used as follows: Nominal Voltage 120V... an accessory and there are credited to open . If an accessory item is removed. Double check the gauge of the first things to the operator, always disconnect one accessory at only specific times during the day or night. In some applications, the gate may be caused by an external...
BG790 Manual
Page 15
...points? WIRING DIAGRAM Always reference the wiring diagram that it is thought to be the motor, it be between 22 and 30Vac. Did the operator run in the controller (Model BG770 uses a manual reset overload). now press down on 2. This voltage can be checked at the circuit ...board at the transformer, then you probably have the gate operator model number, voltage, phase, horsepower and a list of all wiring connections at either the full open and one for 24Vac output. If you ...
...points? WIRING DIAGRAM Always reference the wiring diagram that it is thought to be the motor, it be between 22 and 30Vac. Did the operator run in the controller (Model BG770 uses a manual reset overload). now press down on 2. This voltage can be checked at the circuit ...board at the transformer, then you probably have the gate operator model number, voltage, phase, horsepower and a list of all wiring connections at either the full open and one for 24Vac output. If you ...
BG790 Manual
Page 18
MODEL BG790 12 34 33 2 7 14 2 33 40 15 3 42 40 16 8 37 32 9 6 24 1 22 31 26 32 27 48 41 4 14 13 43 44 5 14 30 36 10 17 18 20 19 21 34 12 28 29 44 25 45 39 23 38 45 44 35 46 14 47 11 49 Operator Assembly (Wishbone Arm not shown) 18 ILLUSTRATED PARTS -
MODEL BG790 12 34 33 2 7 14 2 33 40 15 3 42 40 16 8 37 32 9 6 24 1 22 31 26 32 27 48 41 4 14 13 43 44 5 14 30 36 10 17 18 20 19 21 34 12 28 29 44 25 45 39 23 38 45 44 35 46 14 47 11 49 Operator Assembly (Wishbone Arm not shown) 18 ILLUSTRATED PARTS -
BG790 Manual
Page 20
... Unless a severe problem causes a seal to be performed by a LiftMaster professional. 10.SAVE THESE INSTRUCTIONS. After adjusting the force or the limit of SEVERE INJURY or DEATH: 1. The gear oil in . NEVER let children operate or play with a rigid object or stop when an object activates the... BEFORE performing ANY maintenance. 9. Pick up any major drive chain adjustments. • BG790: If lubricating chain, use separate entrance. 8. Using a VOM, double check the incoming voltage to the operator to make repairs to let the owner or manager know about any new items available or...
... Unless a severe problem causes a seal to be performed by a LiftMaster professional. 10.SAVE THESE INSTRUCTIONS. After adjusting the force or the limit of SEVERE INJURY or DEATH: 1. The gear oil in . NEVER let children operate or play with a rigid object or stop when an object activates the... BEFORE performing ANY maintenance. 9. Pick up any major drive chain adjustments. • BG790: If lubricating chain, use separate entrance. 8. Using a VOM, double check the incoming voltage to the operator to make repairs to let the owner or manager know about any new items available or...
BG790 Manual
Page 21
...J3-8 (OPTIONAL EQUIPMENT) 1 NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY. 2) RELAY COIL VOLTAGE SAME AS OPERATOR LINE VOLTAGE. 3) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 4) BROWN WIRES INSIDE MOTOR NOT USED, SHOULD BE WIRE NUTTED. WIRING...: • DISCONNECT power BEFORE installing or servicing operator. • Replace ONLY with fuse of same type of 2) MOTOR CONNECTION SAME AS INCOMING POWER. APPLICATIONS: CONTROL WIRING TYPE L2 MODEL TYPES: FIELD WIRING BG770, BG790 HORSEPOWER: VOLTAGE/PHASE: 1/2 115/230V, 60Hz,...
...J3-8 (OPTIONAL EQUIPMENT) 1 NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY. 2) RELAY COIL VOLTAGE SAME AS OPERATOR LINE VOLTAGE. 3) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 4) BROWN WIRES INSIDE MOTOR NOT USED, SHOULD BE WIRE NUTTED. WIRING...: • DISCONNECT power BEFORE installing or servicing operator. • Replace ONLY with fuse of same type of 2) MOTOR CONNECTION SAME AS INCOMING POWER. APPLICATIONS: CONTROL WIRING TYPE L2 MODEL TYPES: FIELD WIRING BG770, BG790 HORSEPOWER: VOLTAGE/PHASE: 1/2 115/230V, 60Hz,...
BG790 Manual
Page 22
... OPEN LOOP J3-8 (R) J4-8 (OPTIONAL EQUIPMENT) NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 1 APPLICATIONS: CONTROL WIRING TYPE FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: BG770 (PG) BG790 (HBG) 1/2 208/230/480/575V DRAWING NUMBER: 01-G1015 DATE: 08/28...
... OPEN LOOP J3-8 (R) J4-8 (OPTIONAL EQUIPMENT) NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 1 APPLICATIONS: CONTROL WIRING TYPE FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: BG770 (PG) BG790 (HBG) 1/2 208/230/480/575V DRAWING NUMBER: 01-G1015 DATE: 08/28...
BG790 Manual
Page 23
... INSTRUCTIONS ACCOMPANYING DETECTOR. DO NOT USE WITH HOLD OPEN LOOP. 3) 115V UTILITY OUTLET (4 AMP MAX.) PROVIDED ON 115V MODELS ONLY. 4) SEE REVERSE SIDE FOR INTERNAL OPERATOR WIRING. 5) DO NOT CONNECT INPUT POWER LINES TO L1 & L2 TERMINALS. FAILURE TO COMPLY WITH THE SAFETY INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR...
... INSTRUCTIONS ACCOMPANYING DETECTOR. DO NOT USE WITH HOLD OPEN LOOP. 3) 115V UTILITY OUTLET (4 AMP MAX.) PROVIDED ON 115V MODELS ONLY. 4) SEE REVERSE SIDE FOR INTERNAL OPERATOR WIRING. 5) DO NOT CONNECT INPUT POWER LINES TO L1 & L2 TERMINALS. FAILURE TO COMPLY WITH THE SAFETY INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR...
BG790 Manual
Page 24
WARRANTY POLICY AND SERVICE LIFTMASTER® ONE YEAR LIMITED WARRANTY The Chamberlain Group, Inc. Failure to comply strictly with the instructions regarding installation, operation, maintenance and testing. If, during the limited warranty period, this product appears to be defective and covered by... PARTS OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION, CALL OUR TOLL FREE NUMBER 1-800-528-2806 www.liftmaster.com WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDERS TO: THE CHAMBERLAIN GROUP...
WARRANTY POLICY AND SERVICE LIFTMASTER® ONE YEAR LIMITED WARRANTY The Chamberlain Group, Inc. Failure to comply strictly with the instructions regarding installation, operation, maintenance and testing. If, during the limited warranty period, this product appears to be defective and covered by... PARTS OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION, CALL OUR TOLL FREE NUMBER 1-800-528-2806 www.liftmaster.com WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDERS TO: THE CHAMBERLAIN GROUP...