BC9191-0100 - Terminal strip X1

BC9191-0100 - Terminal strip X1 1:
BC9191-0100 - Terminal strip X1 with RS485 interface

Terminal point

Designation

Connection

Comment

1

DI 1

Input for switching contact 1

For potential-free contact, e.g. window contact

2

GND

GND

GND for switching contact 1

3

DI 2

Input for switching contact 2

For potential-free contact, e.g. dew point

4

GND

GND

GND for switching contact 2

5

DI 3

Input for switching contact 3

For potential-free contact, e.g. occupancy sensor

6

GND

GND

GND for switching contact 3 and LED

7

DO1

LED output

Output for LED, e.g. display on room control unit1 with constant current 10 mA , max. 24 V

8

PT1000

Input PT/NI 1000

Connection for PT/NI 1000

9

GND

GND

GND for PT/NI 1000 and set value generator

10

Potentiometer

Potentiometer

Connection for setpoint generator (potentiometer 1 kΩ ...10 kΩ)

11

AI 1

Analog input 1

Analog input 0…10 V (also usable as 24 V digital input)

12

AI 2

Analog input 2

Analog input 0…10 V (also usable as 24 V digital input)

13

AI 3

Analog input 3

Analog input 0…10 V (also usable as 24 V digital input)

14

GND

GND

0 V potential of the analog input signals

15

GND

GND

GND of the RS485 (shield of the bus cable should be connected to PE)

16

+24 V

+24 V direct voltage

max. 100 mA for supply of KL6583 (EnOcean) or external operating device.
Internal PolySwitch fuse that can be reset after triggering by switching off the BC9191 or disconnecting the inadmissible consumer.

17

RS485

RS485/A

RS485 data cable, e.g. Modbus RTU

18

RS485

RS485/B

See also application example DMX master with BC9191-0100:
https://infosys.beckhoff.com/content/1033/tcplclibdmx/11977733643.html

Potential-free contacts for the digital inputs at terminal strip X1

The digital inputs of the BC9191 expect potential-free contacts at the connections.
24 V signals must not be used.

BC9191-0100 - Terminal strip X1 2:
Block diagram of the digital inputs

The digital output DO1 is intended for direct connection of an LED (10 mA).

BC9191-0100 - Terminal strip X1 3:
Block diagram LED output