Electromagnetic lock Features|Magnetic Lock introduction|WIXI-intelligent technology


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Electromagnetic Lock Features

Electromagnetic locks are designed to take advantage of the physics behind electromagnetism. An electromagnetic lock comprises two main parts, an armature plate made of metal and steel plate surrounded by a coil of wire which can be magnetized. When an electrical current passes though the coil, the steel plate becomes magnetized and strongly attracts the armature plate, locking the door.

Electromagnetic locks deliver high performance. For example, our 10010 series of electromagnetic locks, with a maximum holding force of 545 kg (1200 lbs), only use 1.8W of power to produce up to 240 kg (530 lbs) of holding force.

The holding force capability of each of our electromagnetic locks is tested in a collinear load test. The electromagnetic lock is loaded in a rig with power being supplied so that the electromagnet strongly attracts the armature plate. Then force is slowly applied to pull the armature plate away from the electromagnet. When the mechanical pulling force overcomes the magnetic force, the force is the strength of the electromagnet.

This figure shows the relationship between voltage and holding force. Voltage is proportional to power consumption when the current is fixed. Holding force is proportional to voltage until holding force reaches a maximum. At this point, any further power consumption will not increase holding force.

Electromagnetic locks are protected by epoxy potting compound which ensures a long life for the lock. The lock itself is strong and robust. All the advantages of electromagnetic locks have made them very popular, becoming one of the most widely installed types of electric locks by security engineers.

Electromagnetic locks use magnetic force and thus do not require a mechanical latchbolt to lock the door. This makes them very suitable for emergency and fire exits. In case of emergency, electromagnetic locks automatically release the doors upon power cutoff. There is no concern over the door unable to be opened due to mechanical failure.

Excellent quality:With over a decade of experience in this field, we have the necessary skills and innovative machinery to enhance productivity and ensure the consistently high manufacturing quality of our electromagnetic locks.

International Security Standard: GEM and all our suppliers are IECQ QC 080000 certified. This means all our raw materials and finished products meet the EU's RoHS directives. Our products, tested by our own X-Ray fluorescence spectrometer, are free from lead and mercury amongst other hazardous substances.

Suitable for Harsh Environment?: During product development, all our electromagnetic locks are rigorously tested in our laboratory's temperature and humidity chamber to ensure that they can be used in different environments.

Optional Features: Our indoor series of electromagnetic locks have a wide range of optional features such as Bond Sensor, Relocking Time Delay, Door Position Status and buzzer alarm.

Anti-residual magnetism(ARM) designed?Our electromagnetic locks feature ARM which ensures the door can be opened without any resistance from left over magnetism imparted to the armature plate.

Product Range?: Our electromagnetic locks are available in a range of holding forces from 80 lbs to 1800 lbs for sliding doors or swinging doors, indoor or outdoor, to meet your specific requirements.

Patent and Security Standards:All our electromagnetic locks conform to health, safety and environmental requirements laid down by the European CE, the German TUV and the American UL, ensuring consumer safety. Some of our products have also received patents from key countries.

Bracket Range?: Our electromagnetic locks can be used with our wide range of mounting brackets suitable for different applications.

How to Use Electromagnetic Locks

There are some suggestions and recommendations for the installation and test of the functionality:

	The electromagnetic lock requires a face to face fitting as shown in the illustration. Otherwise, the holding force will decrease (direction of hydraulic press pull must be collinear).		Install the electromagnetic lock and armature plate in the special test clamp which is designed for a collinear pull-off test. (The lock and clamp assembly are shown in the illustration). The armature plate direction of hydraulic press pull must be "collinear", and armature plate centers on core.
	All electromagnetic locks are "fail safe". Therefore they require a UPS (Uninterruptible Power Supply) to remain locked during the power failure.		The electromagnetic locks are suitable for out-swing door and inswing door applications. For inswing door applications, the locks should be fitted with "LZ?"or "Z" brackets.
	Do not tighten the armature on the door leaf. Put one rubber washer between the armature and the door leaf to allow for the face-to-face contact between the armature and the electromagnet. Thus the electromagnetic lock will work effectively.		Make sure the contact surfaces of the electromagnet and armature plate are clean and free from dust. It is important to make sure that the armature plate and the electromagnet properly align to ensure effective operation.

Trouble Shooting

Problem	Possible Cause	Solution
Door is not locked	No power	Make sure the wires are securely tightened to the correct terminal block. Check that the power supply unit is connected and operating properly. Make sure the lock switch is wired correctly.
The door is locked, but can be easily forced open	Poor contact between the electromagnet and armature plate	Do not tighten the armature to the door leaf. Make sure the electromagnet and armature plate are properly aligned. Make sure the contact surfaces of the electromagnet and armature plate are clean and free from dust.
The door is locked, but can be easily forced open	Low voltage or incorrect voltage settings	Ensure the electromagnetic lock is set for the correct voltage. Check if the input voltage is correct. If it’s too low, replace with a correct gauge wire to prevent excessive voltage drop.
Sensor output is not functioning	A second diode was installed across the electromagnetic lock	Remove the second diode installed across the maglock for spike suppression. (The electromagnet has been fitted with a metal oxide varistor to prevent back EMF.)
Sensor output is not functioning	Misalignment between the reed switch and the armature plate	Check the installation of armature plate with the template.

	Voltage Selection jumpers :Check jumper settings before connecting the lock to 24 VDC input power. Damage to the lock may result from incorrect jumper settings.
	The animation shows the location of the reed switch. The switch will send out signal when the electromagnet and armature plate contact correctly.

Distance in feet from power source to farthest locking device

Minimum Wire Gauge for 12 VDC

AMPS	25f	50f	75f	100f	150f	200f	250f	300f	400f	500f	1000f
0.25A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--
0.50A	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	12 Gauge	--	--	--	--
0.75A	18 Gauge	18 Gauge	16 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--	--	--
1.00A	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--
1.50A	18 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--	--	--	--	--
2.00A	16 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--	--	--

Minimum Wire Gauge for 24 VDC

AMPS	25f	50f	75f	100f	150f	200f	250f	300f	400f	500f	1000f
0.25A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	16 Gauge
0.50A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--
0.75A	18 Gauge	18 Gauge	18 Gauge	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--
1.00A	18 Gauge	18 Gauge	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	12 Gauge	--	--	--
1.50A	18 Gauge	18 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--
2.00A	16 Gauge	16 Gauge	14 Gauge	14 Gauge	12 Gauge	--	--	--	--	--	--

Operating Features

	Magnetic bond sensormonitors the locked and unlocked status. (N.C. output: door open; N.O. output: door closed) Green LED is on when the door is unlocked; red LED is on when the door is locked.
	Door Held Open Alarm:?10002BZ, 10020BZ, 10040BZ, etc. are built in with buzzer alarm, activated by "VR timer adjust" which is used to adjust the time of door open from 1~ 80 seconds. If the timer alarm is set to go off 5 seconds after the door is opened, an audible alarm will sound until the door is closed.
	Relocking timer:?The electromagnetic lock unlocks upon power cutoff. It will relock again after receiving power. The timer can be set from 1 ~ 80 seconds. (Available models: 10001TD, 10002TD, 10010TD, etc.)
	Door status sensor?indicates that the door is open or closed. (Available models: 10002DS, 10002NDS, 10020DS, etc.) (White-brown cable connection: Com. - N.C. contact; white-orange cable connection: Com. - N.O. contact)

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