Commanding Field Devices with Precision and Reliability
The ABB DI920 is a robust digital output module for industrial automation systems. This electronic device transmits precise digital control signals to various field actuators. It serves as a critical interface between the control system and physical equipment. Consequently, engineers widely use it to manage operations in demanding industrial environments.
Technical Specifications and System Integration
This output module from ABB is designed for seamless integration into control architectures. Its construction ensures reliable switching performance for continuous operation. Furthermore, the module provides clear status indication for immediate operational feedback.
Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model Number | DI920 |
| Product Series | S800 I/O (Typical for this series) |
| Product Category | Digital Output Module |
| Number of Output Channels | 8 (Typical configuration) |
| Output Type | Sourcing or Sinking (Specific to variant) |
| Output Switching Element | Solid-State (Transistor) or Relay |
| Rated Output Voltage | 24 VDC (Standard industrial control voltage) |
| Maximum Output Current per Channel | 0.5 A to 2.0 A (Varies by specific model) |
| Total Module Current Capacity | 4 A to 8 A (Depends on channels and rating) |
| Switching Frequency | Up to 100 Hz (For transistor outputs) |
| Leakage Current | < 0.1 mA (For solid-state outputs) |
| Voltage Drop | < 1.5 V (Typical for transistor at rated current) |
| Isolation | Channel-to-channel and channel-to-system isolation |
| Protection Features | Short-circuit, Overload, and Thermal Protection |
| Connection Interface | Removable screw terminal block |
| Logic Side Power Supply | 5V DC from S800 station internal bus |
| Field Power Requirement | External 24 VDC supply (typically) |
| Module Power Consumption | Typically 2.0W (Logic and switching combined) |
| Operating Temperature Range | -25°C to +70°C |
| Storage Temperature Range | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Module Dimensions (H x W x D) | Approx. 125 mm x 25 mm x 110 mm |
| Module Weight | Approximately 0.3 kg |
| Mounting | DIN Rail (35 mm) within S800 I/O station |
| Status Indicators | LED per channel for output state and fault |
| Internal Energy Storage | None; outputs require continuous field power |
| Response Time | < 1 ms (ON/OFF for transistor outputs) |
Key Features and Control Applications
The DI920 module directly controls actuators, solenoid valves, motor starters, and indicator lights. Its isolated output channels prevent electrical interference between connected devices. The module also offers diagnostic feedback for each channel to simplify troubleshooting. Moreover, its robust design handles inductive loads commonly found in industrial settings. Therefore, it is essential for assembly lines, packaging machinery, and material handling systems.
Application Context and Load Management
Engineers deploy this module to automate processes by turning equipment on or off. For example, it can activate a pneumatic cylinder or control a conveyor belt motor. The DI920 requires proper sizing to ensure the load current does not exceed its per-channel rating. Additionally, users should employ external fuses or circuit breakers for additional protection. Thus, it enables safe and reliable automation of repetitive industrial tasks.
Installation and Configuration Process
First, mount the module on a DIN rail inside an S800 I/O station. Next, connect the field device wires and the external 24VDC power supply to the terminal block. Then, configure the output behavior and any diagnostic settings via the control system’s engineering software. Finally, test each channel by commanding it from the PLC to verify proper device operation.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 234 × 108 × 18 mm |
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