passncrash (Customer) asked a question.
Does anyone know what would be a appropriate driver for a Superior Electric Slo-Syn synchronous stepper.
Specs:
Type - M111-FD-327
4.1 V, 3.5A
Hold - 625 oz in
spec - BM101025
The 4.1V has me confused. This can't be the max voltage could it?
The stepper is no longer made.
I have 2 factory mounted on a surface grinder.
The oirginal controls are gone.
Have been unable to find answers online.
Thanks
Glen
To tell the truth I don't even know why a voltage rating is even shown on some stepper motors, it is nearly worthless information, the current is the important value in most cases. While the rated voltage will give the rated current and holding torque at standstill, to get any useful speed out of a stepper one will need a significantly higher voltage. normally the current is limited by the driver, not the motor's DC resistance.
Since this is Automation Direct's forum, I think a Sure step STP-DVR-6575 would likely work well, even though it doesn't exactly 3.5A setting (it does have 2.8A and 4A, 4 is not a lot more than the motor rating and the drive can reduce the current by half when stopped which should help reduce motor heating. Maybe use a 48V supply. Actually a STP-DRV-4845 would probably do and it has 3.4A or 3.6A settings, I just happened to have a 6575 nearby and was reading its label.
While this is Automation Direct's forum, the STP-DVR-6575 is made in China and one can get Chinese drive less expensively elsewhere (Even from Automation direct with their Leadshine line, which I have not used) if budget is a big problem. Though, an advantage of the STP-DVR-6575 is it can take 24V control signals directly if one if using a PLC to control it. A lot of the cheaper drives are 5V control, nice if you are using say a 5V Arduino, but they will die if connected to 24V without an additional resistor (don't ask how I know)
Note that driver control voltage and motor supply voltage are two different things.
Tinker,
Thank you for the excellent reply.
This helps a lot as I am a novice at this.
I do hope to use a PLC to control the drive so that info probably saved me.
Glen
To tell the truth I don't even know why a voltage rating is even shown on some stepper motors, it is nearly worthless information, the current is the important value in most cases. While the rated voltage will give the rated current and holding torque at standstill, to get any useful speed out of a stepper one will need a significantly higher voltage. normally the current is limited by the driver, not the motor's DC resistance.
Since this is Automation Direct's forum, I think a Sure step STP-DVR-6575 would likely work well, even though it doesn't exactly 3.5A setting (it does have 2.8A and 4A, 4 is not a lot more than the motor rating and the drive can reduce the current by half when stopped which should help reduce motor heating. Maybe use a 48V supply. Actually a STP-DRV-4845 would probably do and it has 3.4A or 3.6A settings, I just happened to have a 6575 nearby and was reading its label.
While this is Automation Direct's forum, the STP-DVR-6575 is made in China and one can get Chinese drive less expensively elsewhere (Even from Automation direct with their Leadshine line, which I have not used) if budget is a big problem. Though, an advantage of the STP-DVR-6575 is it can take 24V control signals directly if one if using a PLC to control it. A lot of the cheaper drives are 5V control, nice if you are using say a 5V Arduino, but they will die if connected to 24V without an additional resistor (don't ask how I know)
Note that driver control voltage and motor supply voltage are two different things.