BMXSAI0410 Wiring Connector

Introduction

The BMXSAI0410 analog input module includes 4 analog inputs. The module presents two pair of pins – two positive channel (Ch) pins and two negative common (Com) pins – for each input.

For each input:

the two channel pins (Chn) are internally connected, and
the two common pins (Comn) also are internally connected.

To connect an analog sensor to an input, you can use either channel pin and either common pin for that input.

Terminal Blocks

You can use the following Schneider Electric 20-point terminal blocks to fit the 20 pin connector on the front of the module:

screw clamp terminal block BMXFTB2010
age clamp terminal block BMXFTB2000
spring type terminal block BMXFTB2020

NOTE: Terminal blocks can be removed only when power to the module is OFF.

Wiring Connector

NOTE: The module detects a cut wire condition and reports it as a current out of range condition (less than 3.75 mA) by setting the OOR element of the T_U_ANA_SIS_CH_IN structure to “1”.

Mapping Inputs to Connector Pins

The following provides a description of each pin on the BMXSAI0410 analog input module:

Pin Description	Pin Number on Terminal Block		Pin Description
Input (+) of channel 0	2	1	Input (+) of channel 0
Input (–) of channel 0	4	3	Input (–) of channel 0
Input (+) of channel 1	6	5	Input (+) of channel 1
Input (–) of channel 1	8	7	Input (–) of channel 1
Not used	10	9	Not used
Not used	12	11	Not used
Input (+) of channel 2	14	13	Input (+) of channel 2
Input (–) of channel 2	16	15	Input (–) of channel 2
Input (+) of channel 3	18	17	Input (+) of channel 3
Input (–) of channel 3	20	19	Input (–) of channel 3

NOTE: Because the two positive pins for each input are internally connected, you need to use only one positive pin for an input channel. Similarly, because the two negative pins for each input are internally connected, you need to use only one negative pin for each input channel.

For example, to connect an analog sensor to input channel 0, you can connect:

Positive wire of the sensor to either pin 1 or pin 2.
Negative wire of the sensor to either pin 3 or pin 4.