Rev. A.3, 5/00 Page- 15
FIG. 13: “SC” SENSTAT WIRING
RED
BLK GREEN
WHITE
POWER
SUPPLY +
WHITE A ND GREEN W IRES PROV IDE ISOLATE D CLOSURE WHEN LOC K IS SECU RE.
ORANGE AND WHITE AR E CLO SED WHEN LOCK IS NOT SEC URE (AS SHOWN ABOVE ).
"SC" LO CK
ORANGE
3.6 DOUBLE DOOR PROCEDURE FOR STATUS REP ORT I NG
Often two Magnalocks are mounted on a double door and are turned on an d off together (n o
separate control). As to status reporting, it is of course possible to receive a separate Senstat
status sig nal from each door or you can combine the o u tpu ts so th at if both l ocks are secure,
the double door is secure and if either lock is not secure, the double door is not secure.
Simply tie the two white wires together from the two locks. A circuit will be closed between the
two green wires only when both locks are reporting secure. If either is not secure, th e circuit
between th e two green wires wil l be open . The orange wires ar e n ot used. S ee F igure 14.
FIG. 14: DOUBLE DOOR WIRING WITH "SC" LOCKS
WHITE
WHITE
"SC" LOCK
"SC" LOCKS ARE INT ER WIRED AS SHOWN TO PROV IDE STATUS MONI TOR ING. AN ISOLATED CL OSU RE
WILL EXIST BETWEEN THE GREEN WIRES ONLY IF B OTH LOCKS AR E SECURE.
"SC" LOCK
GREEN
GREEN
3.7 DOUBLE DOOR CONTROL SWITCHI NG
It’s common to control two locks from a single access and/or exit switch on double doors or on
an installation where two locks are mounted on a single d oor. In nearly all cases, t his works
with no probl em but occasion ally t he release c an appear to be “st icky” for simil ar reasons to
those discus sed in Section 3.3 This hap pens wh en one of t he locks is poorly cou pled to its
strike plate. This could occur because of an ins tall ation p robl em (th e strik e plat e is not bein g
allowed to swivel) or becau se of some obstru ction between t he plate and magnet sur face.
When an electr omagnet is not well coupl ed to its strike pl ate, its m agnetic f ield col lapses s o
rapidly that it provides some energy to recirculate in the second magnetic lock, slowing the
release of th at lock.
FIG. 14: DOUBLE POLE SWITCHING OF TWO LOCK INSTALLATION
RED BLK
POWER
SUPPLY
+
MAGNALOC K #1
MAGNALOC K #2
RED BLK
TWO POLE
SWITCH