LOX EM4700 User manual

1 EŽǀĞŵber 2021
Important Safety Requirements:
The armature plate must remain movable to allow surface alignment with the magnet face. The
Magnetic Lock will lose holding force without this floating alignment.
Do not trim the rubber washer mounted on the head of the armature centre bolt.
Trimming rubber washers will adversely affect the release of the armature plate from the magnetic lock.
1. Apply thread-locker glue (i.g. Loctite) to the thread of the Armature-Plate-Fixing Screw (Allen-Screw) to prevent
from becoming loose.
2. Locks have to be inspected at regular intervals to ascertain the safety functionality in conjunction with the door
environment.
3. The supplied Allen screws cater for maximum door-thickness of 45mm.
Introduction:
The EM4700 series electromagnetic lock is designed to be used
on external gates or doors that are exposed to the elements. The
casing is made of stainless steel and the product is rated to IP67.
The EM4700 can be installed on single swing doors or sliding
doors and has no residual magnetism.
The electromagnetic lock should always be mounted on the
secure side of the door. The EM4700 armature can be mounted
from either the Iront, or the Vide.
The EM4700 has a built-in power conditional relay switch. The
functions are generated through three output wires as following:
Wiring and Power input requirements:
E
EM4700 Monitored Weather Resistant
380kg Electro-Magnetic Lock
Installation Manual

2
EŽǀĞŵber 2021
Maintenance:
Contacting surface of the Electro-Magnet and Armature Plate must be kept free of contaminating materials. Sur-
faces should be cleaned periodically with a non-abrasive cleaner. Do not spray the Electro-magnet or Armature
Plate surface with any chemicals such as lacquer, etc. This will cause serious problems with the release of the
magnetic Lock and its Armature Plate resulting in serious safety problems.
Dimensions and MounƟng OpƟons:
Problem Possible Cause Solution
Door will not lock No DC voltage to lock. Check power supply and wiring to
magnetic lock.
Reduced holding force
No contact between armature plate and
face of magnet.
Ensure mating surfaces are clean
and in proper alignment and the ar-
mature plate floats freely.
Low voltage or wrong voltage setting Correct to specified voltage setting
and power input requirement
Reed Switch Status is incorrect Misalignment of armature plate. Correct armature plate alignment.
Trouble Shooting:
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