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Purpose
The MK20.3 controller is intended for use as an embedded system for direct digital control of induction, synchronous, switched reluctance and homopolar motors using frequency converters, and control of secondary stabilized and autonomous power systems. High processor performance allows the implementation of sensorless motor control systems.
Controller features:
- One common power supply 24V;
- Input power failure warning circuit;
- Protection scheme for all power levels;
- Galvanic isolation for all discrete inputs/outputs;
- Plug-in board design;
- Two galvanically isolated protected CAN interfaces;
- Galvanically isolated protected RS-485 interface;
- Galvanically isolated inputs for incremental and absolute position sensors;
- Real time clock.
Key specifications
|
Microcontroller type |
TMS320F28335 |
|
Clock frequency, MHz |
150 |
|
Processing speed, million instruction per second |
150+150FPU |
|
Reprogrammable flash memory |
256 Kword |
|
RAM |
34 Kword |
|
External program memory |
No |
|
External data memory |
No |
|
Non-volatile parameter memory |
4/8/16 Kword (standard – 4 Kword) |
|
Real time clock |
Yes |
|
Protection of firmware with security codes |
Yes |
|
Controller expansion boards |
No |
|
PWM outputs type |
open collector, 20mA |
|
Number of main PWM outputs |
6 |
|
Number of additional PWM outputs |
3 |
|
Hardware fault inputs |
5 |
|
ADC |
7 channels, format 0-5V 4 channels, format 0-20mA 1 channel, format 0-10V |
|
Integrated indication |
Yes |
|
Interface RS-232 |
No |
|
Interface RS-485 |
Yes, galvanic isolation |
|
Interface CAN |
2, galvanic isolation |
|
Interface USB |
Yes, galvanic isolation |
|
Number of differential inputs of position sensors |
3 channels (absolute/incremental) |
|
Number of potential inputs of position sensors |
No |
|
DAC / Number of channels |
No |
|
Built-in digital inputs |
4, open collector format |
|
Built-in digital outputs |
4, open collector format |
|
Price |
Price and delivery time depends on the volume and stock. |
More information can be found in the MK 20.3 user manual.
More information can be found in the MK 20.1 user manual.