Installation Instructions

RCR-REX Request-to-Exit Dual Technology Motion Sensor
Installation Instructions
2
Wiring
This section provides examples of different wiring options. The
options are all shown in the fail safe mode.
Basic hook-up
Figure 4 shows the basic hook-up for the RCR-REX, a power
supply and a magnetic lock. When the sensor sees motion, power
is removed from the magnetic lock.
Figure 4. Basic hook-up
Spike protection
Many magnetic locks and electric door strikes have built in spike
(diode) protection. If the lock is not spike protected, install a
bridge rectifier, such as a KBL005, between the relay contacts
and the magnetic lock/door strike as shown in Figure 5.
Figure 5. Spike protection
Note: Failure to spike protect the sensor may result in shortening
the life of the relay contacts.
RCR-REX and a keycard reader
Figure 6 shows the wiring normally used when a keycard reader
is on one side of the door and the RCR-REX is on the other side
of the door. Both swiping a keycard or the detection of motion by
the RCR-REX will remove power from the magnetic lock.
Figure 6. RCR-REX and a keycard reader
Monitor door contacts (first option)
In the monitor door contacts mode, a person entering the sensor’s
field of view will activate the relay and timer. Door contacts
connected to terminal D will monitor if the door is open or
closed. If the relay timer gets to ten seconds or less (if set for 16
seconds or greater) and the door is still open, the RCR-REX
internal sounder will activate. The sounder will also active if the
door is opened without first activating the sensor or keycard
input. The sounder will remain on until the door is closed or by
someone moving in the field of view (Figure 7).
Figure 7. Monitor door contacts (first option)
CAUTION: For DC powered systems, if the door lock
does not contain a diode across the coil winding,
install a diode across the door lock to prevent
degradation of the lock relay contacts. The diode
should have a current rating greater than the
maximum lock current. Install the diode so that the
cathode end with the bar is connected to the
positive side of the coil.
Maglock
12 to 30
VDC or VAC
power supply
RCR-REX
Maglock
Bridge
12 to 30
VDC or VAC
power supply
rectifier
RCR-REX
Maglock
12 to 30
VDC or VAC
power supply
Keycard reader
(normally open)
RCR-REX
Maglock
12 to 30
VDC or VAC
power supply
Door contacts
(normally closed)
RCR-REX