An electromagnetic lock magnetic lock or maglock is a locking device that consists of an electromagnet and an armature plate.
Magnetic door lock diode.
Owsoo electric magnetic lock 180kg 350lbs holding force for door access control system electromagnet fail safe.
Movs diodes are commonly specified or included with electronic locks to prevent long term damage to supply sources when the lock s electromagnetic field collapses.
Magnetic locks can also be identified from a variety of technical indicators the standard qualified magnetic lock generally provide 12v and the 24v input voltage single coil and double coil difference they through the jumper to choose and switch.
Due to the increased strength because of the current the doors can withstand pressure so they can t be forced open without use of the confirmed access method.
Identify the electromagnetic locks for doors from technical indicators.
A diode will cause a delay when releasing the door and residual magnetism to occur.
A fail secure locking device remains locked when power is lost.
Locking devices can be either fail safe or fail secure.
If low determine if the correct wire gauge is being used to prevent excessive voltage drop.
Check for proper voltage at the electromagnetic locks input.
The field collapse causes an effect similar to backfeeding into the power conductors.
Remove any diode installed across the magnet for spike suppression.
The magnet is fitted with a metal oxide varistor to prevent back emf reduced holding force sensor output is not.
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Listed power supply do not install a diode in parallel with any magnetic lock.
There are several ways to judge a magnetic lock.
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A magnetic door lock is a lock that uses an electric current to produce the magnetic force.
Ignoring the role of these small components is no answer either.
Although sdc recommends the use of a dc power supply a common wiring diagramssdc documents datasheets installation instructions templates pricesheets.
There are two main types of electric locking devices.
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