SECO-LARM ENFORCER LD-1123-PAQ Installation Manual
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SECO-LARM ENFORCER LD-1123-PAQ Installation Manual

SECO-LARM ENFORCER LD-1123-PAQ Installation Manual

Loop detector
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Loop Detector
LD-1123-PAQ
Installation Manual
The LD-1123-PAQ Loop Detector is designed to be used with gates or other vehicle detection
systems. The LD-1123-PAQ is connected to an input loop which is buried in the pavement. If a
vehicle is over the input loop, the detector sends a signal to perform such actions as opening a
gate, holding a gate open, or indicating that a vehicle is in a bay.
 Single loop input
 3 Adjustable sensitivity settings
 2 Form "C" relay outputs
 11-pin connector
 ABS plastic housing
 Power-on automatic reset
 Automatic drift compensation for varying environmental conditions
 Auto fault detection
 Terminal block included

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Summary of Contents for SECO-LARM ENFORCER LD-1123-PAQ

  • Page 1 Loop Detector LD-1123-PAQ Installation Manual The LD-1123-PAQ Loop Detector is designed to be used with gates or other vehicle detection systems. The LD-1123-PAQ is connected to an input loop which is buried in the pavement. If a vehicle is over the input loop, the detector sends a signal to perform such actions as opening a gate, holding a gate open, or indicating that a vehicle is in a bay.

  • Page 2: Parts List

    Power LD-1123-PAQ Indicators Detect Pin Layout Specifications Selection Sensitivity Power (+) 12~24 VAC/VDC Adjustment Power (-) Relay 2 N.O. " Relay 2 Relay 1 N.O. (74mm) Relay 1 Loop Loop Ground Relay 1 N.C. Relay 2 N.C. SECO-LARM U.S.A., Inc.

  • Page 3: Dip Switch Settings

    If DIP Switch #3 is ON, then the presence relay will de-energize after a 2.5 second delay. *The limited 5-minute presence output setting should only be selected if a secondary safety device is also in use. SECO-LARM U.S.A., Inc.

  • Page 4: Led Indicators

    Detection status i. Off – No vehicle detected. ii. On – Vehicle detected. iii. Flashing slowly – Detector calibrating. Fault warning i. Flashing quickly – Loop fault (no loop detected, loop short circuit, loop inductance exceeds permitted range). SECO-LARM U.S.A., Inc.

  • Page 5: Installation Notes

    The feeder cable length should not exceed 16 feet (5m). Sensitivity Adjustment Three levels of sensitivity can be set by the slide switch located on the front face of the unit:  High – High sensitivity  Med – Medium sensitivity  Low – Low sensitivity SECO-LARM U.S.A., Inc.

  • Page 6: Loop Installation

    Road Surface Loop Sealant Backer Rod "~1 " (30~50mm) 3 Turns of Loop Cable NOTE: Actual depth depends on number of loops. Depth may be less in concrete pavement to reduce potential for interference from rebar. " (4mm) SECO-LARM U.S.A., Inc.

  • Page 7: Wire Harness

    Wire 7 Brown Pin 7 Loop Wire 8 Grey Pin 8 Loop Wire 9 Green with yellow Pin 9 Ground Wire 10 Pink Pin 10 Relay 1 — N.C. Wire 11 Green Pin 11 Relay 2 — N.C. SECO-LARM U.S.A., Inc.

  • Page 8: Troubleshooting

    SECO-LARM’s obligation is limited to the repair or replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM. This Warranty is void if damage is caused by or attributed to acts of God, physical or electrical misuse or abuse, neglect, repair or alteration, improper or abnormal usage, or faulty installation, or if for any other reason SECO-LARM determines that such equipment is not operating properly as a result of causes other than defects in material and workmanship.

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