a little help

Hi! I was given new task and this is my first time anyway. Can anyone show me a sample ladder program (if available) involving servo motors? PLC- (FX3U-48MT). Do programming with servo motors a complex way? What points should I consider with? like timing? pulsing? is this all digital signals?
thank you.

sheryl

I'm not familiar with your PLC, but there might be something for you at the link below.

http://forums.mrplc.com/index.php?dlcategory=16

Sir Mickey:

Thank you for the site. The PLC is Mitsubhishi using GX developer. May I ask if have you tried servo programming before? Do you have any sample program?

Most of the servo applications that I work with, the servo has the program and the PLC does only digital I/O with the servo... ((start/stop/goto/speed)) these are all digital outputs to the servo from the PLC and digital inputs to the PLC from the servo are ((moving/healthy/not healthy/at speed/at postitionX/etc))

The servos are faster and better to use then the PLC for control, just use the PLC to control/interface with the rest of the machine.

Now if you are talking just an inverter... then the PLC is the way to go.

I have several machines that don't have a PLC only servos that have I/O's

I have several Mitsubishi programs that use servos, you can send me a PM or email and I will send you one.