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ABB SPNIS21 Digital input module
ABB SPNIS21 is a digital input module belonging to ABB's SPN series automation components, designed specifically for industrial control systems. This module is used to collect switch status signals from external devices (such as buttons, sensors, contactor contacts, etc.) and convert them into digital signals recognizable by the control system, enabling real-time monitoring of equipment operating status. It features a standardized interface design, allowing seamless integration with ABB AC 800M and other control systems, suitable for various industrial automation scenarios.
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ABB SPNIS21 Digital input module
Specific Parameters
- Number of input channels: 16 digital inputs
- Input signal type: Dry contact or wet contact (DC 24V)
- Input voltage range: DC 18-30V
- Input current: Maximum 7mA per channel
- Response time: ≤1ms
- Isolation method: Electrical isolation between channels, isolation voltage 2.5kV AC
- Operating temperature range: -25°C to +70°C
- Storage temperature range: -40°C to +85°C
- Relative humidity: 5%-95% (non-condensing)
- Protection class: IP20 (must be installed in a control cabinet)
- Dimensions: Width 45mm, height 175mm, depth 120mm
- Weight: Approximately 200g
- Power requirement: DC 24V (supplied by system bus)
Product Performance
- Reliable signal acquisition: Adopts photoelectric isolation technology to effectively resist electromagnetic interference in industrial environments, ensuring distortion-free transmission of switching signals and avoiding misjudgment of equipment status.
- High-speed response: ≤1ms response time can quickly capture external signal changes, suitable for scenarios with high real-time requirements, such as monitoring emergency stop signals in production lines.
- Multi-channel independent operation: 16 input channels are independent of each other, allowing simultaneous access to signals from different devices without mutual interference, improving system signal acquisition efficiency.
- Wide temperature adaptability: Operating temperature range of -25°C to +70°C, adapting to high and low temperature industrial environments, such as stable operation in metallurgical workshops and cold storage.
- Easy integration: Standardized mechanical and electrical interfaces, can be directly installed on DIN rails, and quickly connected to ABB control system buses, simplifying system wiring and debugging processes.
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