2N Lift8 Manuel succinct - Page 7

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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.