LiftMaster MAST Owners Manual - Page 17
Additional Features
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ADDITIONAL FEATURES » SUGGESTED LOOP SENSOR LOCATIONS SUGGESTED LOOP SENSOR LOCATIONS Do not allow control devices to be within 10 feet of gate or operator. RECOMMENDATIONS: • If vehicle detectors are used to open or close the gate, use of the presence Close contacts are recommended. Using the pulse contacts will REDUCE the gate's safe Loop operation. • If closing timer is to be used, use ONLY on a dedicated free exit. • Close loop must be centered under gate arm. Back Away Loop (Free Exit) Mega Arm FREE EXIT ON VEHICLE APPROACH Gate will open when sensed by exit loop and then close once the close loop is cleared. If the vehicle pulls up to the exit loop and then backs away, it will close. Space between loops will be 4 to 10 feet. Terminal #7 is backaway (free exit). Terminal #6 is close input. Close Loop Mega Arm Card Reader Tele-entry Radio Control ENTRY WITH ACCESS CONTROL DEVICE Gate will open when activated by an access control device. When vehicle passes and clears close loop, gate will close. NOTE: If a second vehicle tail-gates and is sensed at the close loop, gate will stop its closing motion until loop is cleared again. Terminal #6 is close input. Terminals #1, 2, and 3 are open inputs. Back Away Loop (Free Exit) Close Loop Mega Arm Card Reader Tele-entry Radio Control DUAL DIRECTION AS ENTRY OR FREE EXIT Dual direction is a combination of both of the above configurations to provide the ability for traffic to enter or exit in the same lane. Space between loops will be 4 to 10 feet. 17