KEBA DI325: High-Density Digital Input Module
The KEBA DI325 is a digital input module designed for seamless integration into KEBA control systems, including KeControl and robot controllers. It features 32 isolated 24V DC inputs, each with individual LED status indication. The module offers fast signal processing, high noise immunity, and comprehensive diagnostic functions. With a compact design and easy wiring via spring terminals, the DI325 simplifies field device integration. It supports hot-swapping and provides galvanic isolation to protect the control system. Suitable for various industrial applications such as machine tools, handling equipment, and automated production lines.
System Compatibility
The DI325 is designed for KEBA automation platforms, including KeControl C2, C5, and robot controllers. It connects via the system backplane or fieldbus couplers, enabling easy expansion of I/O capacity.
Key Features and Functional Capabilities
32 Digital Inputs: High channel density in a compact housing, reducing space requirements in control cabinets.
24V DC Input Voltage: Standard industrial voltage level compatible with most sensors and switches.
Galvanic Isolation: Input groups are isolated from the system backplane (typically 500V) to prevent ground loops and protect the control system.
Fast Signal Processing: Input filters (configurable) ensure reliable detection of fast events while suppressing noise.
Per-Channel LED Indication: Green LED lights when input is active, allowing immediate visual status check without software tools.
Removable Spring Terminals: Tool-less wiring with push-in technology for solid and stranded wires, simplifying installation and maintenance.
Hot-Swap Capable: Modules can be replaced under power without affecting other I/O, minimizing downtime.
Wide Operating Temperature: -25°C to +60°C, suitable for harsh industrial environments.
Diagnostic Functions: Module and channel diagnostics accessible via the control system, including wire break detection for 2-wire sensors (if supported).
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Digital Input Module |
| Part Number | DI325 |
| Number of Inputs | 32 (organized in groups, e.g., 8 per common) |
| Input Voltage | 24V DC (-15% / +20%) |
| Input Current | Typ. 3-5 mA per channel at 24V |
| Input Characteristics | Type 3 according to IEC 61131-2 |
| ON-State Threshold | > 15V DC (≥ 2.5 mA) |
| OFF-State Threshold | < 5V DC (≤ 1 mA) |
| Input Delay | Typically 0.2 ms (configurable up to 3 ms) |
| Isolation | 500V AC between input groups and backplane |
| Power Supply | Via backplane or external 24V DC (depending on system) |
| Current Consumption (backplane) | Max. 50 mA |
| Diagnostics | Per-channel LED (green), module status LED (green/red) |
| Wiring | Spring-cage terminals (push-in), 0.14-1.5 mm² |
| Dimensions (W×H×D) | Approx. 48 × 100 × 70 mm |
| Weight | Approx. 0.2 kg |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Protection Rating | IP20 |
| Certifications | CE, UL (in preparation) |
| MTBF | > 1,000,000 hours at 40°C |
Industrial Applications
The KEBA DI325 digital input module is used in a variety of industries and machines:
Machine Tools: Acquiring signals from limit switches, pushbuttons, and safety sensors in milling, turning, and grinding machines.
Robotics: Connecting end-of-arm tooling sensors, gripper feedback, and teach pendants to robot controllers.
Packaging Machines: Monitoring product presence, conveyor status, and actuator positions in high-speed packaging lines.
Plastics and Rubber: Inputs for mold protection, ejector position, and temperature switch signals.
Material Handling: Reading photocells, proximity sensors, and pallet presence in automated warehouses.
Special Machines: Custom automation equipment requiring reliable signal acquisition in harsh environments.
Operational Benefits and Lifecycle Value
Space Savings: 32 inputs in a slim 48mm width maximize I/O density in control cabinets.
Reduced Wiring Time: Spring terminals enable fast, vibration-proof connections without special tools.
Enhanced Diagnostics: Per-channel LEDs allow immediate troubleshooting; module diagnostics via fieldbus speed up fault finding.
High Reliability: Robust design with conformal coating (optional) withstands dust, humidity, and temperature extremes.
Future-Proof Integration: Compatible with KEBA's entire control portfolio, ensuring long-term availability and support.
Installation and Maintenance
Mounting: Snap onto 35mm DIN rail according to EN 60715. Ensure proper airflow and clearance.
Wiring: Strip wires to 8-10 mm, insert into terminal using a screwdriver if needed. Observe polarity for sensors requiring supply.
Configuration: Input filters can be adjusted via the control system software (e.g., KeStudio).
Replacement: Hot-swap supported; simply unplug the module and replace without removing wiring if terminals remain in place.
