Re: Need help with servo power supply design

> When the motors are exerting power
> at low
> speeds, the required voltage will be low. For instance, a Gecko

320

> drive with a 60 V
> power supply, and delivering 2 V at 20 A, will draw 40 W, or only

1.5 A

> from the power
> supply at 60 V. (2 * 20 = 1.5 * 60) So, these motors could all be
> delivering peak torque
> at low speeds and STILL draw less than 5 A from the power supply.

The

> only time the
> current in approaches the current out is when the motors are at

near the

> full RPM.

OK, so, I buy a 1.5hp treadmill motor 110 volts. (1.7*746= 1,116
watts or 10 amps)

I gear it down for my plasma table, 2:1.
assuming the power supply will be 66 volts, that is 60% of nameplate,
so would I set the current for 10 amps for the motor maximum ? 6 amps
for the max speed calculation ? or something in line with the power
the table needs ?

Dave