2N Lift8 v1.6.0 - Manual (Page 103)

103
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2.11 I/O Module
Description
The purpose of the I/O Module is to interconnect the Central Unit (CU) with the lift
signalling. It is designed for usage of binary inputs or switching of relay inputs. It is
connected to the CU via 6 wires (power, audio, data). The inputs/outputs are
connected to the I/O Module via 2-pin slide-on terminals.
The I/O Module detects status changes on 4 galvanically isolated logical inputs, whose
nominal voltage ranges between 12 and 24V AC/DC (refer to the table below for the
minimum and maximum voltage values). The I/O Module also contains 4 output NO
contacts equipped with bistable relays (refer to the table below for the maximum
closing values). There may be up to 8 I/O Modules (depending on the count of lift
shafts available).
Remember to set a different address (lift shaft number) for each I/O Module to make
the system work properly. A collision of addresses is signalled by the ERR LED. Set the
address manually using the rotary switch (position 1–8 according to lift shaft 1–8).
Addresses 9 and 0 are not used. If you set one of them, the ERR LED will indicate an
error.
The I/O Modules are connected serially (in line). Do not use parallel connection to avoid
system instability. Connect the termination resistance connecting jumper to the last
device (Splitter or I/O Module furthest from the CU). See the figures below for terminal
layout details.
Figure: I/O Module – Lower Side