Description
General Information
| Item | Specification |
|---|---|
| Part Number | DI581‑S, 1SAP284000R0001 |
| Manufacturer | ABB |
| Product Family | AC500‑S Safety PLC, S500 Safety I/O Series |
| Product Type | Safety Digital Input Module |
| Installation | S500 backplane bus rack mounting, requires TU582‑S terminal unit (ordered separately) |
| Power Supply | 24 VDC auxiliary power supply |
| Lifecycle Status | Active production, available for new‑project and maintenance spare‑part procurement |
| Safety Certification | SIL3 / PL e according to IEC 61508 / IEC 61511, PROFIsafe V2 certified |
| ESD Handling Requirement | Safety logic electronics assembly; anti‑static wrist‑strap and anti‑static workstation required for installation and replacement operations. |
Electrical & Interface Specifications
- Backplane Interface: S500 internal safety bus, communicates with AC500‑S safety CPU.
- Field Terminals: Connect via TU582‑S terminal base unit.
- Channel Configuration: 16 safety digital input channels 24 VDC; configurable mode: 16‑channel SIL2 or 8‑channel SIL3 (2‑channel discrepancy evaluation)files.kemp….
- Test Pulse Output: 8 built‑in test pulse outputs for short‑circuit / wire‑break diagnosis of field sensor wiringfiles.kemp….
- Input Rating: 24 VDC logic‑level safety sensor signals.
- Input Filter: Configurable filter time from 1 ms to 500 ms.
- Isolation: Galvanic isolation between field side and internal safety logic.
- On‑Board Circuitry: Safety input channel circuit, test‑pulse generation circuit, self‑diagnosis circuit, multi‑channel LED status indicators.
- Power Consumption: Typical 4.3 W at 24 VDC.
- Operation Limitation: Cannot operate standalone. Must cooperate with AC500‑S safety CPU and S500 backplane bus.
- Compatibility Matrix
‑ Compatible System: ABB AC500‑S safety PLC, S500 safety I/O rack
‑ Matching Terminal Unit: TU582‑S
‑ Hot‑swap: Supported under safety‑system permitted conditions.
Environmental Specifications
| Item | Value |
|---|---|
| Operating Temperature | ‑20 °C ~ +60 °C inside control cabinet |
| Storage / Transport Temperature | ‑40 °C ~ +85 °C for long‑term spare‑part preservation |
| Relative Humidity | 5 %‑95 % RH, non‑condensing; avoid condensation to prevent circuit corrosion. |
| Compliance Standard | CE, cULus, DNV certification; complies with industrial EMC requirements, IEC 61508 safety standard. |
| Protection Class | IP20 module body; installed inside protected cabinet. |
| Dimension (W×H×D) | 67.5 mm × 135 mm × 75 mm (with TU582‑S terminal unit) |
| Net Weight | Approx. 0.38 kg |
| Vibration Resistance | Complies with IEC 60068‑2‑6 industrial cabinet vibration criteria. |
Main Functions
- DI581‑S (1SAP284000R0001) is S500‑series safety digital input module for ABB AC500‑S safety PLC system. It acquires safety‑related field sensor signals and transmits safety data to safety CPU via PROFIsafe safety bus.
- Supports two operating modes: 16‑channel SIL2 single‑channel input mode, or 8‑channel SIL3 dual‑channel discrepancy‑monitoring input mode for high‑safety‑level applicationsfiles.kemp….
- Built‑in test‑pulse outputs implement wire‑break and short‑circuit diagnosis for field sensor wiring, improving safety integrity of whole safety loop.
- Configurable input filter suppresses field signal bounce and electromagnetic interference. Front‑panel LED indicators show channel status, module power and fault information for on‑site inspection and troubleshooting. Comprehensive self‑diagnosis reports fault status to safety CPU.
- Typical field failure symptoms
‑ Safety input signal cannot be read by safety controller
‑ Discrepancy fault alarm under SIL3 dual‑channel mode
‑ Wiring‑break / short‑circuit diagnosis alarm triggered
‑ Module safety‑bus communication failure
Common root causes: 24 VDC power‑supply anomaly, field sensor wiring damage, incorrect filter‑parameter configuration, poor contact of backplane / terminal connector, environmental dust and moisture influence.
- Suitable for new‑project engineering deployment and spare‑part replacement for existing AC500‑S safety installations.
Typical Applications
- Safety‑related signal acquisition for machinery safety systems, emergency‑stop sensors, safety gates, light‑curtain devices.
- Spare‑part replacement for DI581‑S safety digital input module inside S500 I/O rack.
- Troubleshooting scenarios: safety‑sensor signal acquisition failure, safety‑loop wiring‑fault diagnosis alarm, safety‑bus communication breakdown.
- Preventive‑maintenance spare‑part inventory for machinery, automotive, process‑industry sites equipped with AC500‑S safety PLC system.
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