Yaskawa 021-1BB00 DI, 2 Inputs Internal Part

Yaskawa SM 021-1BB00 Digital Input Module – 2-Channel DC 24 V Sinking Input Technical Description: The SM 021-1BB00 module is a Yaskawa SLIO digital input unit optimized for industrial automation environments. It provides two (2) discrete sinking inputs designed for DC 24 V systems. Signal logic follows IEC 61131-2, Type 1 input characteristic. Key Specifications: • Inputs: 2 digital sinking inputs rated for DC 24 V nominal operation. • Input voltage range: “0”-state: 0-5 V DC; “1”-state: 15-28.8 V DC. • Input current for “1” state: approximately 3 mA. • Delay times: rising (“0”?“1”) approximately 3 ms; falling (“1”?“0”) also ? 3 ms. Mechanical & Power Details: • Dimensions: 12.9 mm (width) × 109 mm (height) × 76.5 mm (depth). • Net weight: ~ 57 g; Gross weight including packaging: ~ 72 g. • Mounting: standard 35 mm DIN?profile rail. • Current consumption from backplane bus: 65 mA. • Power dissipation: Approximately 0.5 W. Operating Parameters & Certifications: • Operating temperature range: 0 °C to +60 °C. • Storage temperature: -25 °C to +70 °C. • Material: PPE / PPE GF10 construction for housing. • Certifications: UL, KC, UKCA, ChinaRoHS. Functional Behavior: • Data size: 2-bit digital input data, with no output channels. • Insulation rating: tested to sustain isolation between channels and the backplane bus at DC 500 V. • Signal status indication: one green LED per channel. Module status indicated via module-level LED – green for operational, red for fault. No advanced diagnostics or channel-level error interrupts. Applications & Integration: Ideal for integrating limited discrete sensor inputs (e.g. limit switches, proximity sensors, push-buttons) into Yaskawa SLIO modular I/O systems. Suitable when minimal input channels are required, with moderate response time (? 3 ms). Best used in control cabinets, panel mount systems, or distributed installations where space and power consumption are constrained. SEO-Relevant Keywords: Digital input module, Yaskawa SLIO, 2 inputs, sinking input, 24 V DC, IEC 61131-2, industrial automation I/O module, SM 021-1BB00. Summary: The SM 021-1BB00 is a compact, efficient 2-input digital input module for DC 24 V sinking signal logic with IEC-standard input behavior. With low power draw, modest size, and certification credentials, it provides a reliable solution for integrating binary control signals into the SLIO modular I/O framework.