Issue: SLF1 fault causes on Altivar71/61 drive. Environment: All. Cause: Fault condition drive will not run. Resolution: A modbus communication fault indicates that the communication has worked...Jun 10, 2018 · In these cases, it is important to know where the voltage signal is derived from for overvoltage fault code troubleshooting. The ideal DC bus voltage for a 3 phase VFD under idle (not running) condition should be approximately square root of 2 multiplied by the AC RMS voltage.
Altivar ATV32 Communications Card Range The Altivar 32 Drives have been created and designed alongside a range of communication cards. Through the use of Communication Cards the Altivar 32 VFD’s (variable frequency drives) can also be connected to other industrial communication buses and networks. When i run the altivar comp i get nothing, its not touching the serialport at all. i have ran it with -v no difference. The VFD does have modbus activated since i can read registers with mb2hal component. That in my world means that serial coms and settings to read the VFD is correct.
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