SDC 1510 Series Holding Force Single EM Magnetic Door Lock Installation Guide

SECURITY DOOR CONTROLS
WWW.SDCSECURITY.COM

INSTALLATION INSTRUCTIONS
1510, 1570, 1580 SERIES HEMLOCK ®

The 1500 Series Emlock is mounted to the underside of the header, on the top side of the door. A TJ mounting kit (optional) can be used when mounting on the hinge side of the door. (Fig. 1D)

The armature is mounted to the door. A hardware kit is provided to compensate for misalignment and wear of the door, by allowing the armature to pivot on its center point.

1. Inspect the frame header to determine if an angle bracket or filler plate is required. See Figure 1A, 1B, 1C.

2. Fold template as indicated by a dotted line. For single doors, locate the template against the door and header on the lock jamb side of the frame.

3. Mark and drill holes as indicated by the template. For armature plate hole preparation, see Figure 2A, 2B, 2C.

4. Mount armature to door. To determine proper hardware (provided), see Figure 2A, 2B, 2C.

5. Install mounting plate to header with the interlock detail away from the door side of the stop, with #10 Flt Hd. Screws provided.
   From the Sexnut side of the door, drill exactly 1/2” hole thru one metal thickness only. From the Armature side of the door, drill a 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 per Figure 2B.
   

6. Holding the magnet housing at each end, engage the entire length of the interlock detail, by pushing towards the door. (If necessary, tap with a soft hammer to ensure proper alignment and engagement).
   Caution: The lock body must be held in place until secured with mounting screws. Screws are provided inside the housing at each end. Tighten the screws and check alignment.

7. Test operation. When all is operating properly, tighten all screws. Install anti-tamper plugs over socket head screw using a soft hammer to avoid damage to the housing.
   Electromagnet and armature should be handled carefully. Any damage to the surface such as paint, burrs, dirt, and rust may hinder the bonding of the surface and reduce holding power.

SHOULD THE SURFACE PLATING BE DAMAGED:

Do not touch the lock face with your hands.

Using a soft, clean, dry cloth or abrasive cloth (i.e., Scotch-Brite), clean lock face. Do not use sandpaper.

A rust inhibitor such as M1, manufactured by Starret, or LPS3, manufactured by LPS Laboratories (available at most hardware stores) can then be applied.

Apply a coat of inhibitor to the armature face also.

Drill a 3/8” hole thru the door. From the sex nut side of the door, drill exactly 1/2” hole, 1-3/8” deep. Mount armature to door with hardware provided per Figure 2A.

FIG. 2C REINFORCED DOOR

Drill and tap for 5/16-18 machine screw. Mount armature to door with hardware provided per Figure 2C.

Any suggestions or comments on this instruction or product are welcome. Please contact us through our website or email engineer@sdcsecurity.com

OPTIONAL: 1511-DF DRILL FIXTURE
Drill many doors and frames in a fraction of the time.

ELECTRICAL SPECIFICATIONS
Voltage kickback protection standard

*NOTE: For a proper coil resistance reading, turn off the DC voltage. Use an ohmmeter and measure the resistance between the pins of the plug connector positions E1-E2 and E3-E4

AVAILABLE OPTIONS

AVAILABLE OPTIONS

All switches rated @ 250 mA @ 30 VDC

ELECTRICAL INSTALLATION

1. Use jacketed cable for all wire runs. Refer to the SDC wire gauge chart for proper lock power wire size (18 AWG gauge minimum).
2. Use only shielded cable for all signal wires. 22 AWG gauge (minimum) may be used for signal wires up to 1,000 feet.
3. All wires must be colored coded.
4. Use properly fused power source only. See Electrical Specifications.
5. Make all Emlock terminal connections according to Figure 3A or 3B.

IMPORTANT NOTES

INDOOR USE ONLY
Do not run power wires and signal wires in the same cable or conduit.
Do not install a diode in parallel with any magnetic lock. A diode will cause a delay when releasing the door and residual magnetism to occur.

Although SDC recommends the use of a DC power supply, a transformer with an adjacent mounted full-wave bridge rectifier may be used. A significant voltage drop will occur when using a full-wave bridge rectifier.

Any low voltage condition will cause erratic operation of the optional bond sensor.

When using a full-wave bridge rectifier, all access controls and/or release contacts must be located between the Emlock and rectifier to ensure a quick release.

AWG WIRE CHART

To determine the correct wire gauge to use on “one circuit” the following information is required:

1. The quantity, voltage, and current draw of all lock(s) to be used.
2. The distance in feet from the power supply to the furthest lock.
   Add together the current draw (amps) of all locks on the same circuit. Cross- reference the total amps with the distance between the power source and the furthest lock to determine the wire gauge required. All wiring must be installed in accordance with all state and local codes.

TROUBLESHOOTING

of power source.

The field-installed diode in parallel with power input.

| The control switch must be wired on the DC side of the power supply.

When an AC transformer and rectifier are used, the control switch must be wired between the rectifier and the Hemlock.

Poor holding force.| Armature installed rigidly.

Low voltage.

AC voltage input.
(Hemlock will make a humming noise)

| The armature must pivot loosely from its center mounting point to permit full armature contact.

Check for proper voltage at the Emlock input.  If low, determine if the correct wire gauge is being used to prevent excessive voltage drop.

Check power supply load capacity.  It must meet or exceed the combined current rating of all locks on the circuit.

Emlocks require DC input voltage.  When AC voltage from a transformer is used, a full-wave bridge rectifier must be installed to convert the AC voltage to DC voltage.

No holding force.

The door does not lock.

| No power.

Input polarity reversed.

Open circuit in Emlock coil.

Magnet coil short.

| Check the voltage at the Hemlock.  If the voltage is low or zero, double- check all wire connections and the power supply.

Check voltage polarity.  Terminal (-) is: Negative.  Terminal (+) is Positive.

Check coil continuity with OHM meter.  If reading is high or open, replace the magnet coil.  See Fig. 3A and the Resistance Specifications.

Coil shorts or incorrect wiring will blow fuses. Measure the coil for correct resistance. See Fig. 3A and the Resistance specifications.

FILLER PLATES: For extension of the stop to provide a proper mounting surface on the underside of the header. See Figure 1B.

• Multiple predrilled and tapped mounting holes to accommodate the use of several different locks on either 4″ or 4.5″ aluminum frames.

ANGLE BRACKETS: Used as an extension on shallow door frames to provide an adequate mounting surface. See Figure 1C.

• Field adjustable for 1/2”, 5/8”, and 3/4” all-glass Herculite doors.

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REV G.1 04-21

[t] 800.413.8783 805.494.0622
E-mail: service@sdcsecurity.com
801 Avenida Acaso, Camarillo,
CA 93012 PO
Box 3670,
Camarillo,
CA 93011

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