When the Siemens inverter is quickly debugged, it appears after the A0541 and the d324-325 cycle is pulsating - News - Global IC Trade Starts Here.

Probe high frequency needle JTK-50L-Q has 5 needles in the high frequency needle

Photocoupler

When using the Siemens MM420 inverter for quick commissioning, some users may encounter an issue where the inverter seems to behave abruptly after the A0541 and D324-325 cycle. This problem has been reported over a long period. What could be causing this? The answer lies in the process of motor parameter calibration. When P1910 is set to 1, the inverter initiates the motor parameter measurement process once it receives a start command. At this point, the A0541 indicator will continue to flash. Pressing the ON button on the BOP panel triggers the automatic motor data detection. During this phase, the inverter injects short pulse currents into the motor, producing a "click" sound as it performs multiple measurements. Once the internal motor parameters are calculated, the BOP panel will display "busy." You must wait until the self-test completes automatically (when P1910 returns to 0), at which point the inverter will stop the self-test process. It's important to avoid interrupting this procedure, as doing so may lead to inaccurate motor parameters or system instability.