The SERAD MD SERIES MD400/2/R/F is a high-performance digital drive controller designed specifically for brushless servomotors. As part of the advanced Intelligent Motion Drive (IMD) evolution, this unit combines a powerful servo amplifier with a sophisticated motion controller, allowing for drastic simplification of traditional machine control architectures .
Designed for industrial environments requiring precise axis control, the MD400 series integrates PLC functionalities, an indexer, and an electronic gearbox (CamBox) into a single compact chassis. The MD400/2/R/F model offers robust power delivery and high-resolution feedback for demanding automation tasks.
Model Number: MD400/2/R/F
Serial/SN: 516.45
Key Technical Specifications
Based on the installation manual for the SERAD MD Series, the MD400/2 model delivers the following performance metrics :
| Specification | Value |
|---|---|
| Series | MD Series (Intelligent Motion Drive) |
| Rated Current (Aeff) | 2.5 A |
| Peak Current (2s) | 5.0 A |
| Rated Power | Approx. 1.4 kVA |
| Weight | 3.6 kg |
| Dimensions (W x H x D) | 72 mm x 293 mm x 233 mm |
| Input Voltage | 230V (Single-phase) / 400V (Three-phase) |
| Braking | Integrated / External braking resistor support |
Advanced Features & Capabilities
The MD Series (IMD) goes beyond standard speed control. It is equipped with native programming capabilities that reduce dependency on external PLCs.
1. Multi-Mode Operation
- Stand-alone Drive: Operates independently using internal programming.
- Controller Mode: Acts as an intelligent master in a multi-axis system.
- Slave Mode: Controlled via an external motion controller or PLC .
2. Integrated Intelligence
The drive supports complex motion profiles including:
- Electronic Cam (CamBox): Dynamic phase shifting and high-speed synchronization.
- Electronic Gearbox: Master/Slave following with programmable ratios.
- Flying Cutoff: Ideal for cutting-to-length or machining on the fly applications.
- Virtual Master: Synchronize multiple drives without a physical master encoder .
3. I/O and Connectivity
- Feedback: Supports Resolver (standard) and optional Hiperface / EnDat encoders.
- Analog I/O: 2 x Analog Inputs (16-bit resolution), 1 x Analog Output (±10V, 8-bit).
- Digital I/O: Opto-isolated digital inputs and NPN open-collector outputs.
- Communication: RS-232 serial port for programming; optional fieldbus extensions (EXT1/EXT2) .
4. Diagnostics and Safety
- 7-Segment Display: Real-time status and error diagnosis on the front panel (Error codes for Over-voltage, Following Error, Over-current, etc.).
- Protection: Short circuit protection, over-voltage protection (900V DC bus), and excess following error detection
