Geovision GV-ML1200 Installation Guide

GV-ML1200 Electromagnetic Lock

The GV-ML1200 is a surface mount electromagnetic lock featured with a built-in voltage
spike suppressor and a sensor. It can be applied for single-leaf or double-leaf doors.

Packing List

1. GV-ML1200 electromagnetic lock x 1

3. Inner hexagon wrench x 1

5. Hat nut x 1

7. Black rubber spacer x 2

9. #10 (5/8”) screw x 2

2. Magnet faceplate x 1

4. M8 (41mm) screw + black rubber

spacer x 1

6. Galvanized steel rivet x 2

8. Aluminum shim x 2

10. #10 (1.25”) screw x 9

11. M4 (7mm) flat-head screw x 2

13. Washer x 3

15. Tamper-proof tube x 3

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12. M5 (8mm) flat-head screw x 2

14. Aluminum tube x 1

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Installation

Before installing, add the thread lockers to all screws. Be sure to firmly tighten the screws.

1. Install the electromagnetic lock to the doorframe.

Permanent

Magnet

Guide Pin

Door Position Sensor Switch

Circuit Board

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2.

Mounts the armature plate to the door.

Typical Installation of the electromagnetic lock:

Note: To make the armature plate adjust its proper position to the magnet automatically,
do not fix the armature plate too tightly and make the rubber washer more flexible.

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Note: If the power switch is not wired between the DC source voltage and the magnet, it
will take longer to de-energize the magnet simulating residual magnetism.

Switch or

solid state

switching

device

Correct

Switch o r

solid st a te

switch in g

device

Incorrect

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Connecting to Power

Unscrew the cover of electromagnetic lock, and connect the lock to the output interface of
the GV-AS Controller and a power supply. Here we use GV-AS410 Controller as an example.

1. Power Terminal Block: Connects to a DC 12V / 24V power source. Connect the (+)
point on the electromagnetic lock to COM on GV-AS410, connect the two (-) points of the
electromagnetic lock and the external power supply together, and connect the (+) point on
the external power supply to NC on GV-AS410.

2. Power Switch Jumper: Plug the power jumpers to Pins A, C and Pins B, D for a 12V
DC power source. Plug the power jumper to Pins C, D for a 24V DC power source.

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Note:

1. It is required to connect an external power supply if the total power consumption of the

output devices and readers connected to the GV-AS Controller exceeds 3A (for GV­AS210 / 2110), 3.5A (for GV-AS410 / 4110) or 5A (for GV-AS810 / 8110).

2. You may use the power outputs on the GV-AS Controller when the total power
consumption of the output devices and readers connected to the GV-AS Controller is
under 3A (for GV-AS210 / 2110), 3.5A (for GV-AS410 / 4110) or 5A (for GV-AS810 /

8110). Here we use GV-AS410 Controller as an example.

12V

12V

GND

12V

GND

GND

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Connecting a Sensor to the GV-AS Controller

There are two types of sensors for the electromagnetic lock: Door Closure Detection Sensor
and Magnet Clasp Detection Sensor. The sensors will detect whether the door is closed
tightly or not, and trigger a “Held Open” message on GV-ASManager when the door remains
unlocked. To connect the sensors to the GV-AS Controller, follow the steps below. Here we
use GV-AS410 Controller as an example.

Note: Only one type of sensor could be applied at a time.

Option 1: Door Closure Detection Sensor

To connect the Door Closure Detection Sensor to the GV-AS410, connect the Red wire of the
sensor to the Input of the GV-AS410, and connect the Black wire of the sensor to the
Ground of the GV-AS410.

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Option 2: Magnet Clasp Detection Sensor

To connect the Magnet Clasp Detection Sensor to the GV-AS410, connect one wire from NC
of the electromagnetic lock’s circuit board to the Input of the GV-AS410, and connect the
other wire from COM of the electromagnetic lock’s circuit board to the Ground of the GV-
AS410.

Note: The two wires mentioned in Option 2 are not included in the package; the users
must prepare them additionally. It is recommended to use wire No. 26 AWG (American
Wire Gauge) or above.

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Setting the Web Interface of the GV-AS Controller

Here we use GV-AS410 Controller as an example.

1. To configure the input setting of connected sensor: on the Web interface of the GV-AS410,
select Advanced Setting, select Input Configuration, and set the input function to Door
Contact.

2. To configure the output setting of the electromagnetic lock: on the Web interface of the
GV-AS410, select Advanced Setting, select Output Configuration, and set the output
function to Electric Lock.

For details on configuring the input and output devices, see the Input Configuration and
Output Configuration section in Chapter 8 of the GV-AS Controller User’s Manual.

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Specifications

Voltage

Current

Holding Force

Operating Temperature

Dimensions (L x W x H)
Armature Plate Dimensions

(L x W x H)

Weight

Certification

All specifications are subject to change without notice.

DC 12V / 24V

500mA at 12V / 250mA at 24V

544.311 kg (1200 lb)

-20°C ~ 60°C (-4°F ~ 140°F)

266 x 73 x 40 mm (10.47” x 2.87” x 1.57”)

185 x 61 x 16 mm (7.28” x 2.40” x 0.62”)

5 kg (11.02 lb)

CE, UL, ISO 9001, RoHS

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