Troubleshooting - PROMIX -SM102 Series Operating Manual

Promix-SM102
8. TROUBLE-SHOOTING
Troubles and problems
Normally closed lock does not open when
supply voltage is applied.
Increased free play of the latch (more than
3 mm)whilethelockisintheclosed state.
A large clearance between the door and the
base as the door is closed (the latch stops
against the inside of the lock).
The lock does not fix the latch (the door is
not closed).
The door is not opened when transferred to
the "open" state. To open the door, one has
to press it more snugly to the door frame.
The door has sunk during use (automatic
latch alignment is insufficient), therefore,
the latch does not enter the lock aperture or
hits the lock as enters.
In a normally opened lock, the latch is not
inserted completely into the lock ("balls are
seized").
10
Remedies
Using a tester, check integrity of the lock power
circuit.
Close the door, case, etc. tightly and press on it at
the latch fastening place, and apply voltage to the
lock. If the lock does not open, apply an elevated
voltage of 20-30 V (up to 36 V for a 24 V
modification) for a short time.
After the lock opening, increase the latch bar
length. To do this, fix the latch support with a
wrench, loosen the latch nut, screw out the latch
bar, tighten the latch nut.
Decrease the latch bar length. To do this, fix the
latch support with a wrench, loosen the latch nut,
screw in the bar, tighten the latch nut.
Check polarity and conformity of the lock supply
voltage to the required one.
Check the distance between the latch and the
lock; if necessary, increase the latch bar length.
To do this, fix the latch support with a wrench,
loosen the latch nut, screw out the bar, tighten the
latch nut.
Remove the causes of the non-tight door bearing
against the door frame.
Increase the latch length.
Restore the door position If this is impossible,
remove the latch fixture from the door. Fasten the
latch to the door ensuring alignment with the lock
aperture.
De-energize the lock. Insert a steel rod 3-5 mm in
diameter (screw-driver, drill, etc.) into the lock
aperture to a positive stop and pull it out.