The EMG SMI2.11.3 is an industrial control board, often used as a centralizer controller for strip guiding systems. It is a component of EMG Automation's SMI2 sensor systems, featuring CANbus communication for guiding metallic strips, typically serving as a receiver unit for sensors. ltage, current, and temperature signal collection, particularly within wind turbine control series.
- Inductive non-contact measurement
- Compatible with all metal materials
- CANopen bus communication
This control board is specifically designed for harsh industrial environments such as cold rolling, pickling, and shearing lines, and has excellent stability. It is equipped with a complete internal device protection circuit, including overvoltage/undervoltage protection for power input and short-circuit and disconnection monitoring functions for sensor circuits.
Important Notice:
Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
EMG SMI2.11.3 CONTROL BOARD Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
1. High frequency signal generation and driving
Function: Generate stable high-frequency sine wave alternating current.
Principle: Drive the transmitting coil on site to generate an alternating electromagnetic field. This is the basis of inductive measurement, ensuring the generation of eddy currents when the strip passes through.
2. Differential signal evaluation and processing
Function: Receive and demodulate weak induced voltage from the receiving coil.
Core logic:
Edge recognition: Calculate the precise position of the edge of the strip based on the amplitude changes caused by the degree of electromagnetic field obstruction by the strip.
Material compensation: Automatically handle the differences in sensing characteristics of different metal materials (such as carbon steel, aluminum, stainless steel) to ensure measurement linearity.
3. System self diagnosis and status monitoring
Function: Real time monitoring of the integrity of the measurement circuit.
Output signal:
Measurement Equipment OK ": Confirm that the board, cables, and sensor circuits are working properly.
Strip Detected ": Identify whether a metal strip has entered the effective measurement area of the sensor.
4. Digital Communication and Interface
Function: Transmit location data to the main control system.
Core protocol: Built in CANopen bus interface, supporting high-speed data exchange with EMG SPC16 controller or other industrial bus systems.
Analog/Digital Conversion: Convert sensed physical quantities into standardized digital displacement signals (such as strip center deviation values).
This circuit board integrates overvoltage and undervoltage protection functions, which can monitor the stability of the 24V DC input power supply in real time and prevent damage to the microprocessor caused by grid fluctuations;
At the same time, for the induction measurement circuit, it has short-circuit and open circuit monitoring logic. Once a fault is detected in the external sensor coil or connecting cable, the board will immediately turn off the transmission drive signal and trigger the "Not OK" relay alarm arranged on the X31 terminal, thereby preventing the power amplification circuit from overheating and burning out;
In addition, the board effectively suppresses spatial radiation interference from frequency converters or high-power motors through electromagnetic compatibility (EMC) shielding design and internal digital filters, ensuring the integrity of core measurement data during transmission.
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