Summary of the content on the page No. 1
LCN ®
7940-8770 Presence Sensor
Installation Instructions
LCN ®
Hardware Products
121 West Railroad Avenue
Princeton, IL 61356-0100
1-800-526-2400
FAX: 800-248-1460
www.lcn.ingersollrand.com © 2006 Ingersoll-Rand Company Limited
Summary of the content on the page No. 2
DESCRIPTION The LCN Presence Sensor (PN: 750182-00) is a self-monitored ready overhead-mounted diffused active infrared sensing device that provides detection for the triggering of automatic swing door safety functions. When used with LCN’s lockout devices, the sensor is programmed to allow two different fields of detection - one for detection when the door is in the fully closed position and the other for detection when the door is fully open. While the door is in the fully open position
Summary of the content on the page No. 3
SAFETY • Shut off all power going to the header before attempting any wiring procedures. PRECAUTIONS • Maintain a clean & safe environment when working in public areas. • Constantly be aware of pedestrian traffic around the door area. • Always stop pedestrian traffic through the doorway when performing testing that may result in unexpected reactions by the door. • Always check placement of all wiring and components before powering up to insure that moving door parts will not catch any
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MECHANICAL NOTE: LCN recommends the use of a BodyMount P/N 761222-79 for most Presence Sensor applications. The INSTALLATION BodyMount is a 3” standoff that allows the Presence Sensor to be slightly distanced from the face of the closed door. This helps to prevent ghosting caused by slight door movement while closed, and also prevents ghosting when Door Mounted Safety Sensors are used (as the Door Mounted Safety Sensor extrusions at the top of the door are extremely close t
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Once all installation, wiring and cabling procedures have been completed, mechanical adjustments can be made. MECHANICAL Please note that further adjustments may be required after powering and walk testing the detection field. ADJUSTMENTS Aside from placement on the header, the only mechanical adjustment that may be made to the sensor is the angle adjustment. The Presence Sensor is factory pre-set to the +5º position, but may be reduced to a 0º position or increased to a 10º positio
Summary of the content on the page No. 6
DOUBLE EGREES: Perform the following set up using LCN’s remote control to reduce cross talk between duel egress applications. Refer to REDUCING the figure on page 2 to ensure the two Presence Sensors are installed with at least 40” of separation when measured CROSS TALK between the centerline of each sensor. 1. Place doors in the hold open position. Unlock sensor and set open door Pattern Depth to 5 (Medium Pattern). This sequence will turn off threshold IR while door is in open
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PROGRAMMING GUIDE – GENERAL FUNCTIONS REMOTE P/N Number Keys 7940-461 Number keys (0 through 9) are used for assigning a value for a given function Infrared Frequency Mode Frequency Interface 1 Normal Low 2 Normal High 3 Quiet Low 1: LO-Linx 4 Quiet High 2: LO21 - Old Style (LO21, B, K, P, U) See Note: Quiet Mode Door Control Unlock 1: normal Inquire (LED in normal mode)
Summary of the content on the page No. 8
PROGRAMMING GUIDE – PATTERN ADJUSTMENTS Sensitivity Door Open-Closed Automatic Learn 0 (min) → 9 (max) (default 7 for door open, default 6 for door Time closed) 0: 30 seconds 1: 1 minute 2: 2 minutes 3: 3 minutes Pattern Width 4: 5 minutes Door Open or 5: 7 minutes Closed 6: 10 minutes 7: 15 minutes 1: Wide (closed door) 8: 10 seconds 2 : Middle (open door) 9: Infinity – no learn 3 : Asymmetri
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MANUAL (NON-REMOTE) Without the LCN Remote Control, the Presence Sensor may be set up using the manual push buttons (see SET-UP diagram below) located under the right end cap. Only the sensitivity, relay mode, auto-learn time, pattern width, and pattern depth may be adjusted with the manual push buttons. To adjust the Presence Sensor, complete the following: PB1 PB2 1. To start the set-up process, press PB1 (for less than 2 seconds) The set-up function wi
Summary of the content on the page No. 10
PRESENCE SENSOR WIDTH st 1 Row of Infrared PATTERNS 1 2 3 4 5 6 Threshold 7 8 9 10 11 12 nd 2 Row of Infrared rd 13 14 15 16 17 18 3 Row of Infrared th 19 20 21 22 23 24 4 Row of Infrared (1) Wide Pattern (2) Middle Pattern (3) Asymmetric Left Narrow 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 7 8 9 10 11 12 7 8 9 10 11 12 13 14 15 16
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PRESENCE Row 1 (spots 1 through 6), are on during open door position and off during closed door position. SENSOR DEPTH PATTERNS - Cont. (4) Deep Without Row 1 (5) Middle Without Row 1 (6) Limited Without Row 1 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 7 8 9 10 11 12 7 8 9 10 11 12 13 14 15 16 17 18 13 14 15 16 17 18 13 14 15 16 17 18 19 20 21 22 23 24 19 20 21 22
Summary of the content on the page No. 12
TROUBLE- PROBLEM PROBABLE CAUSE CORRECTIVE ACTION SHOOTING – Cont. Presence Sensor 1. Improper data from the lockout 1. Allow the door to open in the automatic repeatedly re-learns the device mode. Unlock the Presence Sensor and environment with each 2. Data polarity at the Presence launch a setup by pressing the Setup key, Sensor is incorrect followed by the number 2. If the sensor does not begin flashin
