updowndwell
Member
Hello,
First off I'm not an experienced PLC programmer But I have been using a single axis stepper controlled via a PC for 6 years or so. The vendor of the current system I use has gone bug nuts unreliable so it is time to move on.
I think that for a PLC my needs are pretty simple. Even from a beginner stand point writing the ladder logic should be pretty simple as well. At least I hope so.
3 buttons and an on the fly speed control. 1 button CW rotation, another CCW rotation and the last is a stop button. A potentiometer for speed control.
I would like to do one stop shopping if possible and have found the motor that will do the job at automation direct. It is a
STP-MTRH-34127D NEMA 34 DOUBLE SHAFT 1290 oz-in BIPOLAR
and this for the driver:
STP-DRV-6575 STEPPER DRIVE 7.5A 24-65VDC 2-PH BIPOLAR MICROSTEPPING
Right off I don't see a need for an HMI. Max and min velocity would be set it the PLC and the pot would allow manual change inside the set limits. Would also be a good idea to have limit switches.
Any suggestions on a PLC for this application? Right now I see dozens upon dozens, each with unique abilities. I have hours spent reading on spec sheets but am no closer to having a glue as to what one to try and start with.
Thanks in advanced for any input.
First off I'm not an experienced PLC programmer But I have been using a single axis stepper controlled via a PC for 6 years or so. The vendor of the current system I use has gone bug nuts unreliable so it is time to move on.
I think that for a PLC my needs are pretty simple. Even from a beginner stand point writing the ladder logic should be pretty simple as well. At least I hope so.
3 buttons and an on the fly speed control. 1 button CW rotation, another CCW rotation and the last is a stop button. A potentiometer for speed control.
I would like to do one stop shopping if possible and have found the motor that will do the job at automation direct. It is a
STP-MTRH-34127D NEMA 34 DOUBLE SHAFT 1290 oz-in BIPOLAR
and this for the driver:
STP-DRV-6575 STEPPER DRIVE 7.5A 24-65VDC 2-PH BIPOLAR MICROSTEPPING
Right off I don't see a need for an HMI. Max and min velocity would be set it the PLC and the pot would allow manual change inside the set limits. Would also be a good idea to have limit switches.
Any suggestions on a PLC for this application? Right now I see dozens upon dozens, each with unique abilities. I have hours spent reading on spec sheets but am no closer to having a glue as to what one to try and start with.
Thanks in advanced for any input.