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Workflows
Board Layout
Schematic
Chips
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We identified that the MOSFET (Q3), power diode (D5) and the large capacitors needed replacement on our motor control board. We also had to replace a resistor (R33) which was mark as being 33 ohms but tested at 10K on the board. Ended up replacing this with a 47 ohm through hole resistor.
Replacement Parts
Part | Specification | Original Part# | Replacement Part# | Image |
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MOSFET | Power Mosfet | IRFP260N | IRFP260N | |
2x Capacitors | Aluminum Electrolytic Capacitors - Snap In 680uF 200 Volts 20% | LSG681M2D-2540 | LGR2D681MELA40 | |
Power Diode | Forward Current: 30A, Reverse Voltage: 600V Ultra Fast Diode Fully isolated package | F30U60ST | (IDEAL) | |
RURP3060 with TO-220 insulation Kit (Another Option) |
Completed Work
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Securing Screws
The board originally had an acetone based lacquer application done to the screws to vibration proof the screws.
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