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Schlage M490DE - User Manual

Schlage M490DE
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*23697279*
23697279
Electromagnetic Locks
M490DE
Installation Instructions
Cover Screws (4)
Cover
Mounting Bracket
Outside Mounting
Bracket Screws** (4)
Inside Mounting
Bracket Screws** (2)
Magnet Assembly
Magnet Screws (2)
Armature Plate
Armature Holder
Sex Nut
Armature Bolt*
Conical Washer
Star Locking Washer Flat Washer
Armature Holder
Screws (2)
* Two armature bolts may be included in the package, but only one is used. There may be one left over after proper installation.
** Screwsforbothreinforcedmetalandsheetmetalareincluded.Somescrewswillbeleftoverafterproperinstallation.Seeindividualstepsforscrewidentication.

Questions and Answers

  • D
    Douglas SandersAug 3, 2025
    What to do if my Schlage Lock has power but won’t lock and the LED is Green?
    • K
      Kayla MartinAug 3, 2025
      If your lock has power but isn't locking and the LED is green, it could be due to the fire alarm not being connected or an open connection. To resolve this, ensure that SW4-7 is turned ON, and then remove and re-apply power.
  • G
    Gina BlackAug 9, 2025
    What does it mean if the LEDs flash once quickly on my Schlage Lock?
    • V
      vvelazquezAug 9, 2025
      LEDs flashing once quickly can indicate that the relock delay is set to 0 seconds or that the keypad hasn't been initialized.
  • A
    Amanda HoltAug 15, 2025
    Why does my Schlage Lock “hum” or vibrate noisily when energized?
    • L
      Lee LeonardAug 15, 2025
      A humming or vibrating noise typically indicates that the magnet, armature, or washers are not properly installed.
  • T
    Taylor LambertAug 21, 2025
    Why won’t my Schlage Lock go into delayed egress?
    • D
      Debra JohnsonAug 21, 2025
      Your Schlage Lock might fail to enter delayed egress for a few reasons: * Incorrect dipswitch settings. * Improper installation of the armature washers. * Misalignment between the magnet and armature.
  • G
    Gwendolyn RobinsonAug 27, 2025
    Why does my Schlage Lock go into delayed egress upon powerup?
    • D
      Donald WareAug 27, 2025
      If your lock immediately goes into delayed egress when powered on, check if the armature washers are installed correctly and ensure there's proper gap between the magnet and armature.

Summary

Product Overview and Specifications

Features and Models

Details product features, available models, and their differences.

Wire Gauge and Length Specifications

Provides guidelines for selecting appropriate wire gauge and maximum length.

Warnings and Cautions

Highlights critical safety warnings and cautions for installation and operation.

Pre-Installation and UL Requirements

Covers essential pre-installation checks, UL requirements, and electrical specs.

Electromagnetic Lock Installation

Prepare for Installation

Determine magnet orientation, reorient components, and mark mounting holes.

Attach Armature to Door

Install armature holder and armature plate based on door material.

Install Mounting Bracket

Attach bracket, align magnet, verify plunger, and securely fasten bracket.

Connect Wiring and Configure Settings

Connect wires for basic/plus models and set dip switches for desired functions.

Double Door Installation

Instructions for installing a second lock and communication cable for double doors.

Install Covers

Secure covers using spanner wrench and security screws.

Troubleshooting and Reference

Indicator Table

Explains LED indicators and audible signals for various lock conditions.

Troubleshooting Common Issues

Guides on diagnosing and resolving common lock operational problems.

BOCA Operational Description

Details the specific operational description for the BOCA option.

Schlage M490DE Specifications

General IconGeneral
SeriesM Series
Key OverrideYes
HandingNon-handed
ANSI GradeGrade 1
Backset2-3/4"
Bolt Throw1"
KeywaySchlage C
SecurityHigh
Door Thickness1-3/4" to 2-1/4"

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