Electronic Locking DevicesIn non-technical terms, this book covers the appropriate selection and installation of every system component currently available, along with trouble-shooting techniques. It is a handbook for installers, and a product reference and system design guide for manufacturers' reps and end user's |
From inside the book
Results 1-3 of 36
Page 8
... modes : fail - safe or fail - secure . In the fail - safe mode , electric power must be applied constantly for the lock to remain locked . Loss of power to the lock will cause it to release and remain unlocked . The greatest advantage ...
... modes : fail - safe or fail - secure . In the fail - safe mode , electric power must be applied constantly for the lock to remain locked . Loss of power to the lock will cause it to release and remain unlocked . The greatest advantage ...
Page 28
... Mode When selecting any electric locking device , the mode of operation should be one of the first considerations . The following definitions explain the terminology that will be used throughout this text when describing operating ...
... Mode When selecting any electric locking device , the mode of operation should be one of the first considerations . The following definitions explain the terminology that will be used throughout this text when describing operating ...
Page 68
... modes are as follows : Fail - secure : unlocked when energized , locked when deenergized ; fails into secure ( locked ) mode . Fail - safe : unlocked when deenergized , locked when energized ; fails into safe ( unlocked ) mode ...
... modes are as follows : Fail - secure : unlocked when energized , locked when deenergized ; fails into secure ( locked ) mode . Fail - safe : unlocked when deenergized , locked when energized ; fails into safe ( unlocked ) mode ...
Contents
The Basic Circuit | 13 |
The Load | 23 |
SolenoidOperated Deadbolts | 36 |
Copyright | |
18 other sections not shown
Common terms and phrases
actuator alarm allows amps applications automatic basic battery bolt building called cause Chapter circuit closed codes complete components condition conductors connection contacts continuous cover delay designed diagram door status switch draw egress electric locking electric strike electromagnet electronic emergency energized equipment example exit fail-safe fail-secure field fire flow force frame function hardware indicate insulated interlock latch light load locking device magnet manufacturers material means measure mechanical metal meter methods mode monitoring mounting necessary normally Note offer operation options output panel position power source power supply prevent problem protect range rated reading rectifier reference relay release require resistance safety selected shown in Figure shows side signal simple single solenoid specific standard terminals tion transformer unit unlocked usually voltage wire