Hello,
I'm looking to buy a motor for a machine I'm building.
I'm looking at this motor: http://radionics.rs-online.com/web/...54D424552267573743D67706D392677633D424F544826
It's rated at 41 watts, 14.5 volts and 6.9 amps. It goes from 0 – 6000 rpm. I can't figure out why that is, if power = volts x current, I figure the amps should be much lower, but obviously I missing something in my thinking.
In any case, the thing is, and the reason the amps are pertinent, is that the only speed regulator I can find has a continuous limit of 3 amps (http://radionics.rs-online.com/web/...46F722C362D3135562673633D592677633D4E4F4E4526), and a peak of 5. The guys at radionics (the online shop) said this wouldn't do, but I'm thinking that because my shaft speed is going to be set at a constant 1920 rpm(I'll never go above this), I am using under a third of the 6.9 amps current the motor could potentially demand, therefore keeping well under the 3 amp limit of the speed controller.
The other issue is a 14.5 volt power supply (the motor is rated at 14.5 volts) which I'm having trouble finding. The larger question that I really had is about how the motor/speed regulator/power supply relationship basically works. Is the motor connected to the speed controller, which is connected to the power supply, so essentially the motor only gets what the speed controller gives it? In that case, does the power supply have to be 14.5 volts, or can't it be below that.
Thanks very much.
-George Higgs
I'm looking to buy a motor for a machine I'm building.
I'm looking at this motor: http://radionics.rs-online.com/web/...54D424552267573743D67706D392677633D424F544826
It's rated at 41 watts, 14.5 volts and 6.9 amps. It goes from 0 – 6000 rpm. I can't figure out why that is, if power = volts x current, I figure the amps should be much lower, but obviously I missing something in my thinking.
In any case, the thing is, and the reason the amps are pertinent, is that the only speed regulator I can find has a continuous limit of 3 amps (http://radionics.rs-online.com/web/...46F722C362D3135562673633D592677633D4E4F4E4526), and a peak of 5. The guys at radionics (the online shop) said this wouldn't do, but I'm thinking that because my shaft speed is going to be set at a constant 1920 rpm(I'll never go above this), I am using under a third of the 6.9 amps current the motor could potentially demand, therefore keeping well under the 3 amp limit of the speed controller.
The other issue is a 14.5 volt power supply (the motor is rated at 14.5 volts) which I'm having trouble finding. The larger question that I really had is about how the motor/speed regulator/power supply relationship basically works. Is the motor connected to the speed controller, which is connected to the power supply, so essentially the motor only gets what the speed controller gives it? In that case, does the power supply have to be 14.5 volts, or can't it be below that.
Thanks very much.
-George Higgs