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#1
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It says on the spec plate on the motor, amongst other things ... Perm Magnet DC Servomotor - Volts 140, Pulse Amps, 50. Could somone explain to me what pulse amps are ? If they are the same as normal amps that would meen that this single axis motor is consuming about 6kw of power. I'm sure that cant be right!
__________________ Dom http://www.ukrobotics.com/projects |
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#2
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| I suspect that "pulse amps" means momentary surge current. In the motor you're talking about, this condition occurs at locked rotor stall. This is also why locked rotor is limited to a 1% or so duty cycle. And, yes, you do consume LOTS of power when you stall PMDC motors - and you can also create LOTS of SMOKE. This is why a servo amp with a properly working and configured protection circuit are critical to their operation. |
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