Recent content by InControl

Agreed on Jason's analysis. MTBF is typically published for 25C - reduces substantially when measured at 40C or 60C. The highest internal temperatures typically occur at the transformer (magnetic), but Electrolytic Capacitor degradation the primary factor limiting lifespan. It's impacted by...

Agree on the general direction of mgirating towards Ethernet based to improve security, but taking issue with "TCP packet which is secure". Standard Modbus/TCP is not considered secure in the sense of ability to meet CRA and other evolving cybersecurity standards. The enhanced Ethernet version...

Modbus RTU is a serial protocol developed before external data security regimens existed. It does not have a structure that would support attainment of CRA compliance. Since the core data mechanisms are similar, Modbus/TCP on Ethernet faces similar compatibility issues to cybersecurity...

If the motor is running above base speed/frequency (extended frequency range), there might be some explanation. (Drawings borrowed from Delta Automation website)