06-2023 dormakaba Canada Inc. RAC5 MFC Installation Guide – PK3738 | 13
indicated on the label on the inside of the door. Several floors can be controlled by one relay (one secure
stop).
The relays in the RAC5 MFC are UL rated and are capable of a maximum switching of 30 VDC @ 1A. For
time duration of relay state see Ambiance System Settings, under Security and Lock Access.
As wiring of relay-controller equipment may vary between products, please refer to the product
NOTE: Refer to Annex B, Figure 8 for specific relay expansion board bypass switches.
• If relay output configuration Switch 4 is set to RELAYS OFF and bypass switches are ON, the
relays are bypassed, and the green LED associated with that relay is turned ON
• If relay output configuration Switch 4 is set to RELAYS ON and bypass switches are ON, the
relays are bypassed, and the green LED associated with that relay is turned OFF
• If relay output configuration Switch 4 is set to RELAYS OFF and bypass switches are OFF, the
controller PCB can activate the relays. The associated LEDs turn ON during relay activation
• If relay output configuration Switch 4 is set to RELAYS ON and bypass switches are OFF, the
controller can activate the relays. The associated LEDs turn OFF during relay activation
• When the power of the RAC5 MFC is too low (power failure), the controller PCB stops
functioning and the relays will be powered down. Any peripheral connected to the relays will
then be either in fail safe or fail secure mode, depending on the wiring
7. Connect the power adapter.
NOTE: Dependent
power adapter required. Refer to Annex B, Figure 8 for detailed wiring.
a) International Power Adapter
i. Attach the appropriate AC outlet prong to the power adapter
ii. Route the power adaptor wires into the enclosure and secure the wire (recommended
with tie wraps)
iii. From the inside of the enclosure, crimp the fork terminals supplied in the hardware
bad to the end of each wire
iv. Connect the fork-terminated wires to the power supply input as shown in Annex B,
Figure 8
b) North America Power Adapter
i. From the inside of the enclosure, connect one end of the fork-terminated wires to the
power supply inputs as shown in Annex B, Figure 8
ii. Route the wires out of the enclosure to the AC power source and secure the wires
(recommended with tie wraps)
iii. Crimp the fork terminals supplied in the hardware bag to the end of the wires and
connect them to the power adapter screw terminals
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