Hello,

I would like some guidance to setting up speed control for the G120c via a logo analog output.  

I have never had any hands on experience with siemens vfd's, we are currently upgrading all our vfd's from vacon/danfoss to siemens G120's.

the current set up is just a basic fwd command and 3 fixed speeds via the logo/analog output they are 35Hz,50Hz,65Hz.(min Hz=10_max Hz=75)

I have access to TIA portal and starter software which would be the easiest to commission the drives

I hope someone can point me in the right direction

Regards

Hello,

Exact application as per your requirement is not available, but you can refere below examples which may help you.

Simple speed control with SINAMICS G120

SINAMICS G120C converter

Simple conveying with SINAMICS G120