LiftMaster SW470 SW490 GL BOARD Manual - Page 21

ADJUSTMENT ACCESSORY WIRING All inputs are normally open and momentary, except the stop (N.C.). The following instructions are based upon UL325, and include recommendations for significant increase in safety. We strongly recommend that you follow the UL guidelines presented throughout the manual. Refer to instructions shipped with optional control devices for mounting, wiring, programming and adjustment. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 J1 Terminal Block 24 Vac Accessory Power Can be found at terminals R1 and R2 located on radio terminal block. R1 R2 R3 R4 Control Board 24 Vac J1 Terminals 1 & 5 - Residential Radio (single button) Input These terminals are intended for use with a radio receiver in a residential application or as a single button control. This allows the user to open the gate by activating the remote control when the gate is closed or between limits. This input also gives the user the ability to close the gate by activating the remote control when the gate is on the open limit. J1 Terminals 2 & 5 - Shadow Loop Input These terminals are intended for use with a loop detector and is primarily used on swing gate operators. This input protects cars by preventing the gate from moving off of the open or close limit when the shadow loop input is active. J1 Terminals 6 & 5 - Soft Open These terminals are intended for use as a general open control. Accessories that may be wired to this input include: Telephone Entry Systems, Radio Receiver (Commercial Applications), Exit Loop Detector, Keypads, 7-Day Timer. NOTE: Will not override a double entrapment (signalled by the gate stopped and entrapment alarm on). ONE BUTTON WIRING 1 2 3 4 5 6 7 8 9 10 SHADOW LOOP INPUT 1 2 3 4 5 6 7 8 9 10 SOFT OPEN 1 2 3 4 5 6 7 8 9 10 123 56 789 0# Field Wiring Terminals 8 & 5 - Interrupt (Safety) Loop Input These terminals are intended for use with a loop detector. This input functions to reverse a closing gate to the open limit. Latching this input will reset the timer to close. INTERRUPT (SAFETY) LOOP INPUT 5 8 9 10 11 12 FREQ FREQ FREQ 21