3phase servo motors/power supply
3phase servo motors/power supply
(OP)
greetings
I am a mechanical designer and know very little about motor control. I am building a CNC mill. Ebay has an offering of a set of 3 motors with the following description
Servo Type: 3-Phase Brushless AC w/ Absolute Encoder Feedback
Mechanical Output Power: 100 Watts
Feedback 12 bit absolute encoder w/ differential outputs
Maximum Drive Voltage: 200 Volts
Shaft Diameter: 8 mm
Continuous Torque Output: 45.1 oz-in (0.318 Nm)
Continuous Current Input: 0.89 Amps RMS
Rated Speed: 3500 RPM
Brakes: 90 VDC active low brakes
Bolt Hole Circle Diameter: 70 mm
My power in my shop is the standard 1 phase 220v service. will I be able to purchase a controller for these motors that will work with this single phase service?
Thanks in advance
Norb
I am a mechanical designer and know very little about motor control. I am building a CNC mill. Ebay has an offering of a set of 3 motors with the following description
Servo Type: 3-Phase Brushless AC w/ Absolute Encoder Feedback
Mechanical Output Power: 100 Watts
Feedback 12 bit absolute encoder w/ differential outputs
Maximum Drive Voltage: 200 Volts
Shaft Diameter: 8 mm
Continuous Torque Output: 45.1 oz-in (0.318 Nm)
Continuous Current Input: 0.89 Amps RMS
Rated Speed: 3500 RPM
Brakes: 90 VDC active low brakes
Bolt Hole Circle Diameter: 70 mm
My power in my shop is the standard 1 phase 220v service. will I be able to purchase a controller for these motors that will work with this single phase service?
Thanks in advance
Norb





RE: 3phase servo motors/power supply
RE: 3phase servo motors/power supply
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: 3phase servo motors/power supply
Thanks for the confirmation. However maybe these motors aren't as powerful as they should be for my application............if I am calculating this correctly the ft pounds is only 2.819. in my mind this is not much, but I am not certain what reqirements I need to have........ok I will do some investigations.
RE: 3phase servo motors/power supply
I did a quick check and converted 0.318Nm into about 0.23lb-ft.
RE: 3phase servo motors/power supply
I think you may have two options:
- Use one off-the-shelf package, like AMKACYCLE, from AMK Drives. (I think they are in Richmond), in this case you use servo drives. They also have single phase.
- Use step motors, with a PC based controller: In this case you use a controller card connected tru parallel port, and software.
I've seen both cases, and in MHO that first case is more suitable if you want to offer productivity. The second case probably is more cost efective.
regards