ABB 07 YS 03 Digital Input/Output Module

This module handles discrete signals between field devices and the controller. The ABB 07 YS 03 provides 16 digital inputs and 16 digital outputs for Advant systems. It measures 180 mm in width and 120 mm in height. This unit weighs approximately 0.48 kg for rack mounting.

Technical Specifications Table

Parameter	Value
Product Model	ABB 07 YS 03
Brand	ABB
Category	Digital Input/Output Module
Compatible Series	ABB Advant / S100 I/O
Digital Inputs	16 channels (24 V DC, sink/source)
Input Voltage Range	10 V DC to 30 V DC
Input Current	6 mA typical per channel
Input Delay	3 ms (on/off)
Digital Outputs	16 channels (24 V DC, 0.5 A)
Output Delay	1 ms typical
Dimensions (W x H x D)	180 mm x 120 mm x 50 mm
Weight	0.48 kg
Connector Type	2 x 20-pin screw terminal blocks
Internal Components	32 x optocouplers, 16 x power transistors
Electrical Isolation	1500 V RMS between I/O and backplane
Energy Storage	None (real-time status only)
Input Filtering	Fixed 3 ms debounce
Operating Voltage	5 V DC (from backplane), 24 V DC (field supply)
Power Consumption	120 mA at 5 V, 100 mA at 24 V
LED Indicators	32 x green (input/output status), 1 x green (power)
Operating Temperature	0°C to 55°C

Internal Design and I/O Processing

This digital I/O module uses 32 optocouplers for complete signal isolation. Sixteen power transistors drive output loads for field devices. The ABB 07 YS 03 scans inputs and updates outputs every 5 milliseconds. A fixed 3 ms filter debounces input signals for noise rejection. The module stores no I/O states after power loss. Consequently, the CPU reads fresh input values during each scan cycle. Green LEDs show the real-time status of all 32 channels.

Installation and Wiring Guide

First, mount this module into any Advant rack slot securely. Next, connect your 24 V DC field supply to the designated power terminals. Then, wire your sensor outputs to the 16 input channels (I1-I16). Wire your load devices to the 16 output channels (O1-O16). Each output handles up to 0.5 A of continuous current. Use a 0.5 A fast-blow fuse for each output channel externally. The module provides LED indicators for power and I/O status. This digital I/O module works with ABB Advant controllers and S100 I/O systems. Always verify the output wiring polarity before applying power to the module.