OCTOBER 2020
TROUBLE SHOOTING:
MAINTENANCE:
2
ELECTROMAGNETIC LOCKS 280KG
EM3500 / EM3500D / EM3500M / EM3500DM
INSTALLATION MANUAL
INSTALLATION TIPS:
The Armature Plate must remain flexible - the armature plate must be remained 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 center bolt. Trimming rubber washers will adversely aect the release of the arma-
ture plate from the magnetic lock.
IMPORTANT SAFETY REQUIREMENTS
Apply thread-locker glue (e.g. Loctite) to the thread of the Armature-Plate-Fixing Screw (Allen-Screw) to prevent from becoming loose.
Locks should be inspected at regular intervals to ascertain the safety functionality.
The supplied Allen screws cater for maximum door thickness of 45mm.
Contacting surfaces of the electromagnet and armature plate must be kept free of contaminating materials. Surfaces should be cleaned periodically with
a non-abrasive cleaner. Do not spray the electromagnet or armature plate surface with any lacquer chemical, this will create problems with the release
of the magnetic lock and armature plates.
PROBLEM POSSIBLE CAUSE SOLUTION
DOOR WILL NOT LOCK NO DC VOLTAGE TO LOCK. LOOSE WIRE ON
TERMINAL STRIP
CHECK POWER SUPPLY AND WIRING TO
MAGNETIC LOCK
REDUCED HOLDING FORCE BAD PHYSICAL CONTACT BETWEEN ARMATURE PLATE AND FACE OF
MAGNET. INCORRECT VOLTAGE JUMPER SETTING
ENSURE MATING SURFACES ARE CLEAN AND IN PROPER ALIGNMENT AND THE
ARMATURE PLATE FLOATS FREELY.
CHECK MAGNETIC LOCK FOR LOW VOLTAGE OR WRONG VOLTAGE SETTING
DELAY IN DOOR RELEASE CIRCUIT SWITCH IS NOT BETWEEN MAGNETIC LOCK AND POWER
SOURCE. SECONDARY DIODE INSTALLED ACROSS MAGNETIC LOCK
RE-WIRE CIRCUIT SWITCH BETWEEN MAGNETIC LOCK AND POWER SOURCE.
REMOVE ANY INSTALLED DIODE. VOLTAGE SPIKE PROTECTION IS ON THE PCB.
LED STATUS IS INCORRECT
MISALIGNMENT OF ARMATURE PLATE.
REED SWITCH LOCATED IN WRONG POSITION IN MAGNETIC BLOCK.
INCORRECT VOLTAGE SETTING
CHECK ALIGNMENT OF ARMATURE PLATE.
ADJUST JUMPER TO CORRECT VOLTAGE.
One way security dome nut
Mounting plate
