Hello everyone,
i have one question about the power supply for my setup:
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Arduino UNO:
connected with USB to the computer,with firmware, NO powersupply (5,5mm/2,1mm)
vin bridge IS cut
Arduino Motorshield:
4 wire stepper on H-Bridge, external powersupply 1.(12V/4A), 2.(12V/2,5A), 3.(12V/2A), 4.(6V/4A)
Steppermotor NEMA 17:
Bipolar, 200 Steps/Rev, 2.8V, 1.7 A/Phase, Resistance 1.65 Ω/coil, Inductance 3.2 mH/coil
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The problem is that the shield makes crazy things without input while its connected with one of the 4 powersupplys.
The LED´s are blinking and the stepper makes noise.
If i give an input with NI Labview goUp oder goDown it makes only ratatatatat but no realy action.
With an laboratory powersupply 12V,2,3A CV+CC it works fine.
But the Voltage goes up and down between 5-12Volt, the current is everytime exactly at 2,3A the maximum of the powersupply.
Please tell me what mistake i make, what is wrong with my powersupplys?
For more information please look at my video:
(For sound, please turn up your speekervolume)