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#1
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I’m attempting to convert an old X/Y Plotter to be a CNC Plasma cutter. The problem I’m running into a problem trying to drive these small 36MM diameter servo motors using Gecko or other servo controllers. The problem seems to be the motors have too low inductance for the common Servo drives and the motors heat up pretty quick. I’ve read that you can add an inductors to the circuit to solve the problem, but not being a real electronics guy I have no idea if this concept is a good practice, or not. The next problem is I have no idea how I would choose the proper value inductor. I don't even know for sure what the inductance of this motor is and I have no idea how to measure inductance. Can anyone help on this? Attached is a picture of my Servo Motor Servo Motor: Escap 36LT2R This should be a 150 Watt, 48 volt brushed servo motor if my research is correct. Encoder: HEDS-5300 My Power supply is 40VDC. This power supply came with the plotter so it should be correctly matched to the motors. Thanks! |
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#2
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| yes, putting inductor in series with motor is common practice. 150w/48v=3amp. 1mh is good size to put in series with one of the motor leads. this will satisfy those drives. Digi-Key - 513-1651-ND (Manufacturer - CTX01-15789) or equiv. |
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