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Misfittech / nano_stepper

Stepper feedback controller
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Smart Stepper N2P 100 35V capacitor getting really hot #45

Closed vmario89 closed 4 years ago

vmario89 commented 4 years ago

Hi, i installed Smart Stepper on 4 exactly same motors. The smart steppers are all hardware rev. 2019 and they are running with same firmware 0.39. I jsut mounted them and did the calibration procedure anad the test calibration test. All fine so far.

No i figured out that one of the 4 smart steppers the capacitor (N2P 100 35V) is getting really hot. I took an infrared thermometer which measured 70°C (the others are at ~20°C). you cannot grab it by hand because its so hot. The smart stepper reacts normally so far - if i add a force to the motor shaft it corrects the error immediately. The smart stepper are not connected to a machine yet. they are just mounted, connected to power source and to the 2 phases of the stepper motor. do you have an idea what could be wrong?

regards, Mario regards, Mario

vmario89 commented 4 years ago

btw got that datasheet: https://datasheet.octopart.com/UWT1E330MCL1GB-Nichicon-datasheet-5313425.pdf

i know that 105°C are allowed but the fact is that they do not behave the same in the same mode - only 3 of 4 are cool.

vmario89 commented 4 years ago

solved it by reflashing the firmware. after flashing the thing made normal sound noise again and now its cool