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Will the ATV61 drive save the last speed reference when using the external knob for speed control on the HMI?
Altivar ATV61 and ATV71 with VW3A1101 HMI
Knob on remote HMI is a digital signal reference its not saved if you power cycled the drive. Drive will start back at low speed or 0 hz.
If you need to maintain the speed reference after you power down you may need to add a remote mounted POT to AI1, com and +10vdc as an option.
The HMI Reference if used will go back to 0 or LSP if cycled power to the drive. Can set LSP to desired setting. Also, there is a Reference saved parameter but it applies only to +/- Speed it does not apply to the HMI reference. .