ABB DI524 Digital Input Module

Overview

The ABB DI524 is a digital input module designed for industrial automation systems. It interfaces various digital signals from sensors, switches, and other devices to your PLC or automation system. The module provides multiple input channels to monitor and process binary inputs.

Key Parameters

• Process Supply Voltage (UP):

  • Rated Value: 24 V DC
  • Max. Ripple: 5%

• Connections:

  • Terminals 1.8, 2.8, 3.8, 4.8 for +24 V (UP)
  • Terminals 1.9, 2.9, 3.9, 4.9 for 0 V (ZP)

• Protection Features:

  • Reversed Voltage Protection: Yes
  • Rated Protection Fuse for UP: 10 A fast
  • Galvanic Isolation: Yes, per module

Current Consumption

• From 24 V DC Power Supply (at UP/L+ and ZP/M terminals): Approx. 2 mA
• From UP (Normal Operation): 0.15 A
• Inrush Current from UP (at Power-Up): 0.008 A²s

Physical Specifications

• Weight: Approx. 105 g (without terminal unit)
• Mounting Position: Horizontal or vertical (with derating at +40 °C, output load reduced to 50%)
• Cooling: Ensure natural convection cooling is not obstructed by ducts or other parts.

Channel Distribution

• Number of Channels per Module: 32

• Distribution into Groups:

  • Group 1: Channels I0 to I7
  • Group 2: Channels I8 to I15
  • Group 3: Channels I16 to I23
  • Group 4: Channels I24 to I31

• Reference Potential for All Inputs: Terminals 1.9, 2.9, 3.9, and 4.9 (negative pole of process supply voltage, signal name ZP)

Input Signal Characteristics

• Input Type (EN 61131-2): Type 1

• Input Delay (0 -> 1 or 1 -> 0): Typ. 8 ms, configurable from 0.1 to 32 ms

• Input Signal Voltage: 24 V DC

  • Signal 0: -3 V to +5 V
  • Undefined Signal: > +5 V to < +15 V
  • Signal 1: +15 V to +30 V

• Ripple with Signal 0: Within -3 V to +5 V

• Ripple with Signal 1: Within +15 V to +30 V

Input Current per Channel

• Input Voltage +24 V: Typ. 5 mA
• Input Voltage +5 V: > 1 mA
• Input Voltage +15 V: > 5 mA
• Input Voltage +30 V: < 8 mA

Cable Length Limitations

• Shielded Cable: Up to 1000 m
• Unshielded Cable: Up to 600 m