18
Elevator Restriction System Installation and Operation Manual
Installing the Elevator Restriction Unit
2.3
Relay Boards
The 2012E and 3012E Elevator Restriction Relay Boards plug into the backplane
portion of the Elevator Restriction Unit. Figure 9 and Figure 10 show the two
models of relay boards, viewing the board from the top with the relays on the
right.
Up to eight relay boards can be mounted on the Elevator Restriction Controller
Backplane, for a maximum of 96 relays.
Note:
Only a qualified elevator service technician should wire the
Elevator Restriction Unit to the elevator controller.
Before wiring, ensure that the power is off.
Before you mount and wire the relay boards, you must know the following:
•
How many floors or relays per cab you are using, keeping in mind that
each relay board has 12 relays. Each relay will be assigned to a specific
floor selection button.
•
Whether the circuits are normally open or normally closed.
•
What they will be connected to.
Using the information in this section, wire the relays to the input circuits of
the elevator manufacturer’s button controller. Use tables in Chapter 4 to
record how each relay is wired.
