Securitron RLP_Series - Manual

Securitron Magnalock Corp. www.securitron.com
ASSA ABLOY, the global leader
Tel 800.624.5625 [email protected]
in door opening solutions
© Copyright, 2011, all rights reserved PN# 500-13650
Page 1 Rev. C, 05/11
SECURITRON RELAY LOGIC PACK MODEL RLP-12 AND RLP-24
INSTALLATION AND OPERATING INSTRUCTIONS
1. DESCRIPTION
The relay logic pack accomplishes multiple functions needed in the access control and security
industry: It permits integration of lock status reporting electric locks with card reader systems.
It supplies logic for lock status reporting electric locks used in man trap type interlocks. It
functions as a relay interlock latch and finally, it can be used as a DPDT relay.
2. ELECTRICAL CHARACTERISTICS
Two different versions are available for operation on respectively 12 or 24 VDC. Supply voltage
need not be regulated; a transformer plus full wave bridge rectifier is adequate. The pack will
draw a maximum of 30 mA at 12 VDC or 15 mA at 24 VDC. Contacts are rated at 2 Amps.
3. INTEGRATION OF LOCK STATUS SENSING WITH ACCESS CONTROL
When electric locks such as Securitron's Magnalock are integrated with many brands of access
control equipment, certain problems can arise which are overcome by the use of the relay logic
pack. First, most access control systems monitor the door and will annunciate an alarm
condition if the door is not reporting secure when it should be. When "legal" entry is granted by
the card reader (or digital keypad), this alarm condition is automatically suppressed. In similar
fashion, when legal exit is granted (REX) the alarm condition is also suppressed.
If the door is monitored by a door switch, this function will work properly. However, if a lock
status sensor is employed to yield higher security, a timing problem can develop. As soon as
the lock is released, a lock status sensor (such as Securitron's Senstat feature) will change
state. A door switch is much slower. It will only change state when the door is actually opened.
Because of the high speed of the lock status sensor, the access control system may report an
alarm because it will read the lock status sensor changing state before it internally recognizes
that monitoring should be suppressed during legal entry or egress.
Another problem can arise with legal egress. The access control system has to be informed that
legal egress (REX) is being performed. Therefore a switch equipped exit device such as a push
button, a detector, Securitron's Touch Sense Bar, or a switch equipped panic bar must be
employed. Such devices may be wired into the REX input of the access control system. This will
release the lock for a selectable period of time permitting egress, but there is a reliability
problem. Egress is a safety function and if a failure occurs with the access control system,
people can become trapped. It is therefore better to wire the exit device directly to the lock and
also to the REX input of the access control system. If the REX input fails, the lock can still be
released. The problem is that this requires two poles for the exit device switch and the typical
exit device does not have this feature.
The relay logic pack overcomes these problems by providing dry outputs, normally open or
normally closed, to the access control system for REX and lock/door monitoring alarm. The REX
signal occurs whenever the exit switch is used. The alarm signal occurs when the lock is not
reporting secure although the relay logic pack doesn't output this signal while the exit switch is
depressed. The fact that use of the exit switch suppresses the alarm output is particularly
valuable if the lock is to be released via an alternate action switch for a period of time. Also, the
alarm signal is delayed by 150 milliseconds so that internal suppression of this signal in the
access control system, triggered by either legal entry or exit, will have time to become effective.
3.1 WIRING
Refer to the drawings below for respectively fail safe (secure when powered) or fail secure
(secure when released) locks. Note the diode that must be used with fail secure locks. If it is
not there, the access control relay will trip the REX input. The drawings show local wiring at
each door and outputs from the relay logic pack to the access control system. Reporting request
to exit (REX) is from the brown, green and yellow wires which are SPDT dry contacts. Two more
wires report the alarm condition. Use white and violet if you want to alarm on a closed
condition. Use blue and gray if you want to alarm on an open condition.