Schlage M400 Series User manual

M400 Series
Electromagnetic Locks
Installation Instructions for Double Locks
M422, M452, M492
FEATURES
Automatic Voltage Selection (AVS)
Magnet immediately detects 12VDC or 24VDC when power
is connected.
Anti-Tamper Switch (ATS)
An indication is provided should the magnet cover become
unsecured from lock.
Magnetic Bond Sensor (MBS)
Detects proper bond between magnet and armature. It can
be monitored remotely and locally with an LED.
LED
Provides local indication of MBS status.
Door Position Switch (DPS)
Indicates whether door is open or closed. this feature is used
in conjunction with the MBS.
Relock Time Delay (RTD)
Relock time can be changed. Range is 1 - 30 seconds.
MODELS
M422 (Traffic Control)
UL1034 and 10C/500lb and 3hr rating
M452 (High Security)
UL1034 and 10C/1000lb and 3hr rating
M492 (Max Security)
UL1034 and 10C/1500lb and 3hr rating
TRIMS
Basic
Auto Voltage Selection (AVS) for 12 or 24VDC
Plus
Basic features + Door Position Switch (DPS), Magnetic Bond
Sensor (MBS), Relocking Time Delay (RTD), LED Status
Indicator (LED) and Anti-Tamper Switch (ATS)
UL Requirements:
• Units shall not impair operation of panic hardware mounted on door.
• Units shall not impair intended operation of an emergency exit.
• Units/Models are intended to be connected to UL Listed Equipment, not
intended for Burglar or Fire Alarm Initiating or Indicating Devices.
• Ambient Conditions - “For Indoor Use Only”
This device complies with part 15 of FCC rules.
Operation is subject to following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including any
interference that may cause undesired operation. Changes or modifications
not expressly approved by party responsible for compliance could void
user’s authority to operate equipment.

2
ELECTRICAL SPECIFICATIONS
Model
Amps (12VDC)
Per Lock
Amps (24VDC)
Per Lock
Holding Force
(lbs) Per Coil
M422 1.500 0.760 500
M452 1.500 0.760 1000
M492 1.300 0.700 1500
LOCK INSTALLATION
1 PREPARE FOR INSTALLATION
1a Lock Orientation
• Locks should be installed with wiring covers in the middle, so the magnet in one of the locks must be reoriented.
Shown from Exterior
Magnet Magnet Wiring Covers

3
1b Reorient Magnet in One Lock
• Remove screws, wiring cover and end blocks.
• Rotate magnet, end blocks and wiring cover as shown, then reassemble.
End Block
Magnet
End Block
Magnet
Wiring Cover
1c Place Template and Mark Holes
• Place template on top centerline of doors.
• Mark holes and prepare them per template.

4
2 INSTALL MBS INDICATOR (OPTIONAL, PLUS MODELS ONLY)
2a Remove Cover 2b Drill Hole for MBS Indicator
Bottom
0.75"
(19mm)
¹⁄₄" (6 mm) drill bit
M420: 0.50" (13 mm)
M450/490: 0.75” (19mm)
0.25"
(6 mm)
hole
2c Install MBS Indicator
3 INSTALL ATS (PLUS MODELS ONLY)
3a Remove End Block and Wiring Cover
a
c
b
3b Install ATS and Reassemble
d
e
f
ATS

5
4 ATTACH ARMATURES TO DOORS
4a Install as Shown
Outside
2x
5 INSTALL MOUNTING BRACKETS INTO FRAME
5a Attach Mounting Brackets Temporarily
• Install alignment tool onto brackets.
• Install four (4) screws into slotted holes and partially tighten.
OUTSIDE
Wires
Alignment tool
Actual Size
Metal
Wood

6
5b Remove Wiring Covers and End Blocks 5c Slide One Magnet onto Bracket
OUTSIDE
5d Slide Second Magnet onto Bracket 5e Align Magnets to Armatures
• Close doors.
• Press magnets to fully engage with armatures.
• Mark brackets on ends.
Mark here
(both sides)
Press magnets
to armatures
INSIDE
5f Remove Magnet and Snug Two (2) Outer Screws
OUTSIDE
Snug these two screws
5g Align Center of Brackets Using Alignment Tool
• Loosen two (2) innermost screws.
• Place alignment tool over brackets.
• Tighten all four (4) screws.
OUTSIDE
Loosen these
two screws

7
5h Verify magnet Adjustment
• Close door and verify magnets make full contact with
armatures.
• If alignment is satisfactory, go to step 5i.
• If further adjustment is required, repeat steps
5e through 5h.
Magnets making full
contact with armatures
INSIDE
5i Prepare Additional Holes
• Install alignment tool on brackets.
• Fully tighten four (4) screws.
• Drill eight (8) remaining holes. Use #10-24 tap if
metal is reinforced.
Fully tighten four screws
OUTSIDE
5j Install Eight (8) Screws
• Remove alignment tool.
• Install and fully tighten eight (8) screws.
OUTSIDE
Actual Size
Reinforced
Metal
Sheet
Metal

8
6 ATTACH MAGNETS TO MOUNTING BRACKETS
6a Slide One Magnet onto Bracket
OUTSIDE
6b Install Joining Block into Lock
6c Slide Second Magnet onto Bracket
• Align with joining block.
6d Secure Locks with Four (4) Screws
Actual Size

9
7 CONNECT WIRING TO BOARD (STANDARD MODEL)
7a Review Wiring Connections
TB1
Mag Lock Board
DC (+)
DC (-)
From Magnet
TB1
Mag Lock Board
DC (+)
DC (-)
From Magnet
DC (+) DC (-)
7b Connect Wires to Boards
From Door Frame
DC Power Wires
From Magnet
7c Install Covers

10
8 CONNECT WIRING TO BOARD (PLUS MODEL)
8a Connect Outside Wires to Boards
• Choose between NO or NC.
DC Power
NO
NC
C
NO
NC
C
DC (+)
DC (-)
MBS: 1A, 30VDC,
Resistive
DPS: 0.25A, 30VDC,
Resistive
NO
NC
C
NO
NC
C
DC (+)
DC (-)
Normally Open
(NO)
MBS MBS
Normally Open
(NO)
DPS DPS
DC Power
MBS: 1A, 30VDC,
Resistive
DPS: 0.25A, 30VDC,
Resistive
DC(-) DC(+)
Mag Lock
Board
Mag Lock
Board
Normally Open (NO) Wiring in Parallel
Switch position will be closed when doors are closed and locked.
To be used with normally open terminals
Switch position will be open when doors are closed and locked.
To be used with normally closed terminals
DC Power
NO
NC
C
NO
NC
C
DC (+)
DC (-)
MBS: 1A, 30VDC,
Resistive
DPS: 0.25A, 30VDC,
Resistive
NO
NC
C
NO
NC
C
DC (+)
DC (-)
Normally Closed
(NC)
MBS MBS
In Out
Normally Closed
(NC)
DPS DPS
In Out
DC Power
MBS: 1A, 30VDC,
Resistive
DPS: 0.25A, 30VDC,
Resistive
DC(-) DC(+)
Mag Lock
Board
Mag Lock
Board
Normally Closed (NC) Wiring in Parallel

11
8b Review Plug Locations
TB1
TB2
TB3
From Magnet
From LED
From MBS
From MBS
RTD Adjuster
RED
Polarized
Black/Red
Note: Two MBS
plugs are
interchangeable
Min.
Time
Max.
Time
Mag Lock Board
8c Connect Plugs to Boards
From Magnet
From LED
From MBS
From MBS
8d Connect ATS Wires
ATS
NC (violet)
NO (gray)
C (white)
Switch Rating:
1A @ 30VDC, Resistive
8e Install Covers

©2011 Schlage Lock Company
Printed in China
44487304 Rev. 04/11-c