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Doc 6001343 (01-20299)
Rev B
C. POWER WIRING
1.
Provide a separate conduit stub for the AC power.
2.
Each gate operator requires a 115 VAC 20 AMP single phase circuit.
NOTE:
Master and Slave
units each require separate circuits to prevent false overcurrent faults.
3.
Wiring must comply with the local Electrical Code for operating a ½ HP motor (suggest 12 AWG for
up to 300’ and 10 AWG for up to 500’ long wire runs).
4.
Be sure to pull a ground wire in the conduit for the connection to the gate operator. Do not rely on
metallic conduit for earth ground.
D. LOOP DETECTORS
1.
The gate operator has a shelf that can support non-LiftMaster loop detector electronics. Power for
the loop detector can come from the auxiliary 115 VAC plugs in the gate operator or from the 24
VAC provided by the gate operator control board.
NOTE:
The auxiliary plugs have power regardless of the unit power switch setting.
2.
Conduit provisions should be made for the “loop” wire entrance to the loop detector.
3.
The shelf space provided is approximately 7” x 6” x 32” high. Shelf space on systems without the
Power Fail Operation Option is about 12” x 6” x 32”.
4.
Wiring should be 16-24 AWG stranded or 18-24 AWG solid.
NOTE:
Optional LiftMaster-supplied loop detector add-on boards are available, both pre-installed and for
installation in the field. See Part 4, BG 3100-X1 Options.
E. TELEPHONE CONNECTION
•
A conduit entrance into the gate operator should be provided for the telephone line.
•
A single twisted pair wire 18 AWG to 24 AWG, will be connected from the telephone company
termination block through the conduit to J9 on the controller board. Polarity is not important.
NOTE:
Do not run telephone and AC power wires in the same conduit.
F. MASTER SLAVE INTERCONNECTION (MASTER/SLAVE SYSTEM ONLY)
•
A conduit between the Master and Slave units should be provided for the Master/Slave
interconnection cable.
•
Two shielded twisted pair wire 16 AWG to 24 AWG will be connected between the two units at TB5
on the controller board.
NOTES:
1. Do not run the Master Slave cable and AC power wire in the same conduit.
2 Master/Slave interconnection cable should not exceed 3000 feet in length.
G. OTHER CONNECTIONS
•
Provisions should be made for conduit entrance into the gate operator for external activating
devices such as key switches, telephone entry systems, loops, etc.
•
Wire size requirement: 16-24 AWG or 18-24 AWG solid wire should be used.
