SDC EMLOCK 1575-1576 Instruction Manual
- June 6, 2024
- SDC
Table of Contents
INSTALLATION INSTRUCTIONS®
1575-1576 EMLOCK
During installation, care must be taken to assure full electro-magnet and
armature contact.
The Emlock and armature should be handled carefully. Any damage to the surface
such as paint, burrs and dirt will hinder full holding power.
Although all SDC Emlocks are provided with the best possible plating for
corrosion resistance, the continued impact of the armature against the Emlock
may cause eventual wear of the plating.
If wear causes rust to occur, clean the surface using a fine abrasive pad. Do
not use coarse material to clean surfaces.
After cleaning, do not touch the Emlock face or armature with your hands.
A rust inhibitor such as M1 manufactured by Starret, or LPS3 manufactured by
LPS Laboratories (available at most hardware stores) may be applied.
Mount the Emlock to a fence post or similar structure. The armature is mounted
to the gate. The fabrication of additional mounting plates and angle brackets
may be required by the installer. Due to the various gate and fence designs,
there is not a standard or recommended method of installation.
Emlocks are fail-safe (locked when energized) devices and require power to
remain locked. A power supply with battery backup is required when power
outages may interfere with desired security.
INSTALLATION:
-
Inspect the gate and post to determine if any mounting plates or angle brackets are required. Install mounting hardware as required.
-
Mark the mounting surfaces per the template. Be sure the centerline of the armature template matches the centerline of the Emlock template. Drill and tap holes as indicated.
-
Mount the armature to the gate. Determine the proper hardware (provided) see Figure 1. DO NOT SUBSTITUTE ARMATURE MOUNTING HARDWARE AND DO NOT WELD THE ARMATURE DIRECTLY TO THE MOUNTING SURFACE.
When properly mounted, the armature will pivot slightly around the mounting screw. -
Mount the Emlock with hardware provided (See pages 3 & 4).
-
Tighten all screws. Install anti-tamper plugs over socket head mounting screws.
-
Install 1/2” or 3/4” conduit. A conduit outlet box must be provided within 15″ of the lock for wire connections.
-
Make all wire connections to a fused power source with the power off.
From the Sexnut side of door, drill exactly 1/2” hole thru one metal thickness
only. From the armature side of the door, drill 5/8” hole to insert the
reinforcement tube. Press in sex nut and reinforcement tube all the way and
mount armature to door using hardware provided.
Drill and tape for 5/16 machine screw.
Mount armature to door with hardware provided.
SECURITY DOOR CONTROLS ,
WWW.SDCSECURITY.COM
800.413.8783 . 805.494.0622 ,E-mail:
service@sdcsecurity.com
801 Avenida Acaso, Camarillo, CA 93012
PO Box 3670, Camarillo, CA 93011
Any suggestions or comments to this instruction or product are welcome. Please contact us through our website or email engineer@sdcsecurity.com
WIRING DETAILS:
BOND SENSOR (BAS) WIRING
| WIRE COLOR | CONTACT | DESCRIPTION |
|---|---|---|
| YEL | N/O | COMMON |
| GRN | COM | GOOD BOND |
| ORG | N/C | NO/POOR BOND |
DOOR POSITION SENSOR (DPS) WIRING
| WIRE COLOR | CONTACT | DESCRIPTION |
|---|---|---|
| WHT | N/O | ACTIVATE WHEN DOOR OPEN |
| GRY | COM | COMMON |
| VIO | N/C | ACTIVATE WHEN DOOR CLOSED |
To determine the correct wire gauge to use on a single “circuit” the following information is required:
- The quantity, voltage, and current draw of all lock(s) to be connected to the circuit.
- The distance in feet from the power supply to the furthest lock on the circuit.
Add together the current draw (amps) of all locks on the same circuit. Using
the AWG Chart below, cross-reference the total amps with the distance between
the power source and the furthest lock to determine the wire gauge required.
A single “circuit” describes a pair of wires run from the power supply to one
or more locks that are wired in parallel. The distance from the power supply
to the furthest lock in the “circuit” must not exceed the distance number
shown in the chart below and is based on your selected wire gauge. If the
distance shown in the chart is inadequate for your application, divide your
locks up into 2 or more separate “circuits” and use the chart to check each
circuit independently. Fewer locks on each circuit may allow you to use a
smaller gauge wire or will allow you to increase the maximum distance between
the power supply and the furthest lock on the circuit. More than one circuit
can be connected on the same power supply as long as the combined current
required from all connected circuits does not exceed the power supply rating.
NOTE: All wiring must be installed in accordance with all state and local
codes.
Minimum Wire Gauge
For 12 Volts AC or DC
DISTANCE IN FEET FROM POWER SOURCE TO FARTHEST LOCKING DEVICE
AMPS| 25| 50| 75| 100| 150| 200| 250| 300| 400| 500| 1000
0.25| 18| 18| 18| 18| 18| 18| 16| 16| 14| 12|
0.5| 18| 18| 18| 18| 18| 16| 16| 14| 12| |
0.75| 18| 18| 16| 16| 14| 14| 14| 12| | |
1| 18| 18| 16| 16| 14| 12| | | | |
1.5| 18| 16| 14| 14| 12| | | | | |
2| 18| 16| 14| 12| | | | | | |
2.5| 18| 14| 12| | | | | | | |
3| 16| 14| | | | | | | | |
3.5| 16| | | | | | | | | |
Minimum Wire Gauge
For 24 Volts AC or DC
DISTANCE IN FEET FROM POWER SOURCE TO FARTHEST LOCKING DEVICE
AMPS| 25| 50| 75| 100| 150| 200| 250| 300| 400| 500| 1000
0.25| 18| 18| 18| 18| 18| 18| 18| 18| 18| 16| 16
0.5| 18| 18| 18| 18| 18| 18| 18| 16| 16| 14|
0.75| 18| 18| 18| 18| 18| 16| 16| 16| 14| 12|
1| 18| 18| 18| 18| 16| 16| 14| 14| 12| |
1.5| 18| 18| 18| 16| 16| 14| 12| | | |
2| 18| 18| 18| 16| 14| 14| 12| | | |
2.5| 18| 18| 16| 14| 14| 12| | | | |
3| 18| 16| 14| 14| 12| 12| | | | |
3.5| 18| 16| 14| 12| | | | | | |
1576 GATE EMLOCK®
MOUNTING ACCESSORIES
TROUBLESHOOTING
1575-1576 EMLOCK
| PROBLEM | CAUSE | SOLUTION |
|---|
Residual magnetism.
The lock releases slowly.| Control switch wired on the AC side of the power
source| The access control switch must be wired on the DC side of the power
supply.
When an AC transformer and a bridge rectifier are used, the access control
switch must be wired between the rectifier and the Emlock.
Poor holding power| Armature installed rigidly.
Insufficient voltage
AC voltage output| The armature must pivot loosely from its center mounting
point to permit full armature contact.
Check for proper voltage at the Emlock input. If the voltage is low, determine
if the correct wire gauge is being used to prevent excessive voltage drop.
Check the power supply load capacity. It must meet or exceed the combined
current rating of the Emlocks on the circuit.
Emlocks require DC input voltage. When an AC transformer is used, a bridge
rectifier must be installed
to convert the AC output of the transformer to DC.
No magnetic powerDoor does not lock.| No power
Input polarity reversed.
Open circuit in lock coil.
Coil short.| Check the input voltage at the Emlock. If the voltage is zero or
low reading, double-check all wire connections.
Note Polarity:
12VDC Config.: RED/BLU – Positive, BRN/BLK – Negative 24VDC Config.: RED –
Positive, BRN – Negative Check the Emlock coil continuity with OHM meter. If
the reading is high or open, replace the magnet.
A coil short or incorrect wiring will blow fuses. Measure the coil for correct
resistance. If the coil reading is zero or low, replace the magnet.
If the coil resistance is correct, check the field wiring for shorts. Locate
and repair the short in the field wiring.
BAS Option does not show
lock secure.| Insufficient voltage
Armature installed rigidly or misaligned.
The surface of the magnet or armature is rusted or pitted.| Check for proper
voltage at the Emlock input. If the voltage is low, determine if the correct
wire gauge is being used to prevent excessive voltage drop.
The armature must pivot loosely from its center mounting point to permit full
armature contact.
Clean the armature and surface of the lock (see Page 1)
SECURITY DOOR CONTROLS ■ WWW.SDCSECURITY.COM
[t] 800.413.8783 ■ 805.494.0622 ■ E-mail:
service@sdcsecurity.com
■ 801 Avenida Acaso, Camarillo, CA 93012 ■ PO Box 3670, Camarillo, CA 93011
P:\INST INSTRUCTIONS\EMLOCKS\INST-1575-76U REV C 09-21