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Key Technical Specifications
| Parameter | Specification |
|---|---|
| Processor | 32-bit ARM Cortex-M7 or M0+ |
| Digital I/O | 16 Inputs / 8 Outputs (24V DC) |
| Communication | CANopen (CAN2.0B), RS232, RS485, Modbus RTU, DeviceNet (slave), Ethernet (optional subboard) |
| Expansion | CAN bus capable (up to 127 nodes), supports 256 total I/O points |
| Motion Control | Step/Dir, CW/CCW, PWM speed/torque, ±10V analog, encoder feedback (up to 8M line/s) |
| Power Supply | 18-80V DC (wide voltage range) |
| Protection | Overcurrent, Overvoltage, Undervoltage, Short-circuit, Overtemperature, I2t, Control error |
| Dimensions | 98 x 65 x 32 mm (Compact Eurocard form factor) |
| Operating Temp | -40°C to +85°C (Industrial grade) |
Product Introduction
The Metso D201925 is a robust, high-performance embedded controller designed for OEMs and system integrators requiring precise motion and process control. It is the successor to the Eurotherm 205x series, offering a blend of legacy compatibility and modern communication protocols.This controller is ideal for applications requiring high-speed, deterministic control, such as packaging machinery, material handling, and industrial automation. It features a compact Eurocard form factor, making it suitable for space-constrained control cabinets. The unit supports multiple control modes (proportional, integral) and provides advanced diagnostics, including fault self-reporting and LED status indicators for inputs/outputs.
Installation & Configuration Guide
Preparation (15 min)
- Verify the physical dimensions (98mm W x 32mm H) to ensure fit in the existing chassis.
- Confirm the firmware revision (if known) matches the system requirements.
- Gather necessary tools: screwdrivers, terminal crimpers, and a multimeter.
Wiring (20 min)
- Power Down: Disconnect all power sources before wiring.
- Power Connections: Connect 18-80V DC to the designated power terminals. Note the reverse polarity protection.
- I/O Connections: Wire the 16 digital inputs (DI) and 8 digital outputs (DO) to the terminal block. Use ferrules for solid/core wire.
- Communication: Configure the serial ports (RS232/485) or CAN bus according to the system network topology.
Power-On & Test (10 min)
- Apply power and monitor the front panel LEDs. A steady green indicates normal operation.
- Use Trio BASIC or a compatible HMI to upload the control program.
- Test all I/O channels with a multimeter or logic probe.
- Verify communication by checking the CANopen node ID or RS485 response.
Commissioning (15 min)
- Use the on-board configuration utility to set the operating mode (e.g., position, speed, torque).
- Adjust the PID tuning parameters for the specific mechanical load.
- Test the encoder feedback loop for accuracy.
Troubleshooting Quick Reference
| Symptom | Probable Cause | Corrective Action |
|---|---|---|
| No Power (LEDs Off) | No 18-80V DC | Check supply voltage at terminals. Ensure power is applied correctly. |
| CAN Bus Error (Red LED) | Termination or ID conflict | Verify CANopen termination resistors are set correctly. Check node IDs for duplicates. |
| I/O Fault | Wiring or Signal | Check continuity of field wiring. Ensure input signals are within 24V DC range. |
| Overheat (Thermal Shutdown) | High ambient temp or overload | Ensure adequate ventilation. Reduce load current if peak current (18A) is exceeded. |
| Communication Timeout | Cable Fault | Inspect RS232/485 cables for breaks. Ensure baud rates match on both ends. |
Dimensions, Mounting & Wiring Notes
- Dimensions: 98mm (Width) x 65mm (Depth) x 32mm (Height). This is a standard 6U Eurocard size.
- Mounting: Standard 35mm DIN rail or panel mount. Use captive screws for vibration resistance.
- Wiring: The terminal block is located on the front or side. Tighten screws to 0.5 N·m to prevent vibration-induced loosening.
- Note: The D201925 supports up to 127 nodes on the CAN bus network. If using the optional Ethernet subboard, refer to the specific interface manual.
FAQ
Q: What is the difference between D201925 and D201925L?
A: The “L” suffix typically indicates a specific hardware revision or a variant with different terminal block configurations. Always verify the pinout diagram in the manual.
Q: Can I program this with ladder logic?
A: No. This controller uses Trio BASIC, a high-level programming language. Ladder logic is not supported natively.
Q: Does it support EtherNet/IP?
A: The base unit supports CANopen and Modbus. EtherNet/IP requires the installation of a specific communication subboard.
Q: What is the maximum encoder count rate?
A: The encoder input can handle up to 8 million line/s (with 4x interpolation).
Q: Is there a built-in HMI?
A: No. This is a controller module. You must connect it to an external operator interface, such as a Trio P504 or similar touchscreen.
Q: What happens if I exceed the 6A continuous current?
A: The controller has a peak current rating of 18A for short durations. Exceeding 6A continuous will trigger an overcurrent fault and thermal protection.
Q: Can I use this as a standalone PLC?
A: Yes, it can function as a standalone PLC with internal logic. It does not strictly require an external PC for operation, though one is needed for initial programming.
