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DI581-S

ABB 1SAP284000R0001 DI581-S AC500-S Safety Discrete Input Module

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  • Manufacturer: ABB

  • Product No.: DI581-S

  • Product Type: Digital Input Module

  • Product Origin: SE

  • Payment:T/T, Western Union

  • Weight: 135g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The ABB DI581-S (1SAP284000R0001) is a high-integrity 16-channel safety digital input module designed for the AC500-S Safety PLC system. Engineered for functional safety applications up to SIL 3 (IEC 62061) and PL e (ISO 13849-1), it provides reliable 24 V DC signal acquisition from field safety devices such as emergency stop buttons, light curtains, and safety switches. Operating with a low logic current draw of 0.18 A at 24 V DC, the DI581-S features comprehensive internal diagnostics, reverse polarity protection, and robust environmental resilience for demanding industrial control systems. Weighing approximately 0.135 kg (0.30 lbs), this compact module mounts onto standard AC500 terminal units (TU582-S).

Technical Specifications

Parameter Specification
Product Model DI581-S
Order Code / Part Number 1SAP284000R0001
PLC Family ABB AC500-S Safety PLC System
Number of Channels 16 Safety Digital Inputs (24 V DC)
Safety Integrity Level SIL 3 (IEC 62061 / IEC 61508), PL e (ISO 13849-1)
Rated Supply Voltage 24 V DC (-15%, +20%, max 5% ripple)
Signal Voltage Levels Signal 0: -3 to +5 V | Signal 1: +15 to +30 V
Electronics Current Draw 0.18 A @ 24 V DC
Maximum Cable Length 600 m (unshielded field wiring)
Protection & Fuse Rating Reverse Voltage Protection | 10 A Fast-Blow (UP)
Operating Humidity & Pressure Max 95% RH (non-condensing) | > 800 hPa (< 2000m)
Storage & Transport Temp. -40°C to +85°C (-40°F to +185°F)
Net Weight 0.135 kg (0.30 lbs)

Key Design & Hardware Features

  • SIL 3 / PL e Functional Safety Certification: Purpose-built for high-integrity safety loops in automated systems, machine safety, and hazardous process environments.
  • Long-Distance Unshielded Cabling: Supports up to 600-meter unshielded cable runs, reducing installation costs and enabling long-distance field sensor connections.
  • Power Interruption Immunity: Tolerates DC power supply interruptions up to 10 ms without dropping safety state, maintaining high operational availability.
  • Comprehensive Electrical Protection: Integrated reverse voltage protection and fast-blow 10 A external fuse rating safeguard logic electronics against field wiring faults.

Installation Guidelines

1. Terminal Unit Mounting: Snap the DI581-S safety module onto its corresponding AC500-S safety terminal unit (e.g., TU582-S) until the locking mechanism fully engages.

2. Grounding & Shielding: Although unshielded cables up to 600m are supported, ensure the 24 V DC field supply common (FE) is connected to functional earth to maximize EMC resistance in high-noise environments.

3. Power Supply Fuse Protection: Install a 10 A fast-blow fuse on the UP supply line to protect the module internal power routing from external short-circuit events.

Frequently Asked Questions (FAQs)

Q1: Can the ABB DI581-S module be used in standard non-safety AC500 CPUs?
A1: The DI581-S is specifically designed for the AC500-S Safety PLC platform and must be managed by an AC500 safety CPU (such as the SM560-S) to execute SIL 3 / PL e safety logic.

Q2: What happens during short DC power supply dips?
A2: The module incorporates power-ride-through capability that withstands DC supply interruptions under 10 ms, preventing false safety trips during transient power fluctuations.

Q3: What terminal unit is compatible with the DI581-S 1SAP284000R0001 module?
A3: The DI581-S connects to the TU582-S safety terminal unit, which provides dedicated terminal connections for the 16 safety digital inputs and test outputs.

🏷️ Tags: Digital Input Module

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