If you live in the USA or Canada, set it for 60hz. That is the frequency of your AC line. Dial in 600 on the PLC. That will give you the correct speed. To change platter speed to 45rpm, move the belt to the wider portion of the motor pulley.
Vpi plc question?
First happy holiday to all members. My question is about a Vpi plc that I a using with a Vpi Hw-19 markII. The model I am using has the three digit calibration on the front. I at the moment do not have the manual. I am asking how to calibrate them or does it go according to area and region depending on current flow or? How would I set it for proper 33rpm and 45rpm? Would I just have to set it by chance using a strobe to set the speed? Thank you all.