The ABB D1801 (3BSE020508R1) is a high-density 16-channel digital input module. It provides reliable monitoring for 24VDC discrete signals in industrial automation systems. This module is a core component within ABB’s versatile I/O portfolio for process and machine control.
Engineers use the D1801 to interface with sensors, switches, and other field devices. Its single-group design simplifies wiring and configuration for all 16 channels. Consequently, it efficiently gathers critical status data for control logic and system interlocks.
Comprehensive Technical Specifications
The D1801 module combines high channel density with robust electrical characteristics. The following table details its complete technical and mechanical parameters.
| Parameter | Specification |
|---|---|
| Manufacturer & Primary Model | ABB D1801 |
| Alternative Part Number | 3BSE020508R1 |
| Module Type | Digital Input, Current Sink (Sinking) |
| Number of Channels | 16 Channels |
| Channel Grouping | 1 Common Group |
| Input Voltage Range | 24 VDC (19.2 – 30 VDC) |
| Input Type / Logic | Sink (NPN), Positive Logic (Voltage at terminal = ON) |
| Nominal Input Current | 6 mA @ 24 VDC |
| On-State Voltage Range | 15 – 30 VDC |
| Off-State Voltage Range | 0 – 5 VDC |
| Input Delay Time | ≤ 3 ms |
| Rated Isolation Voltage | 50 V (Channel to Backplane) |
| Field Connection | Removable Screw Terminal Block |
| Backplane Communication | Parallel via System-Specific Backplane |
| Module Dimensions (HxWxD) | 120 mm x 25 mm x 115 mm |
| Module Weight | 165 grams |
| Internal Power Consumption | Approx. 1.8 W (from backplane) |
| Internal Components | 2x 8-Channel Input ICs, 1x Filter Network, 1x Status LED Driver |
| Certification | cULus Listed, CE Marked |
Design for Reliability and Simple Integration
This module from ABB features a compact, single-group design for straightforward installation. Its current-sink (sinking) input circuitry is compatible with standard PNP (sourcing) field devices. Moreover, the 50V rated isolation provides basic protection against ground potential differences.
The module’s integrated diagnostics include a per-channel status LED for visual indication. This allows for immediate verification of the input state during commissioning and operation. Therefore, troubleshooting field wiring issues becomes faster and more efficient.
Key Application Areas
The D1801 3BSE020508R1 is ideal for monitoring discrete devices in control panels. Common applications include pushbuttons, limit switches, and relay contacts. It also reliably reads the status of proximity sensors and photoelectric eyes on production lines.
This module serves as a fundamental building block in manufacturing and process automation. Its fast response time supports precise sequence control and safety interlocking. Ultimately, it delivers the reliable digital signal acquisition needed for stable system operation.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 234 × 108 × 18 mm |
Reviews
There are no reviews yet.