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Motor Protection Logic
2.12 Motor Protection Logic
The DSP56F801EVM contains a UNI-3 connector that interfaces with various motor drive
boards. The DSP can sense error conditions generated by the motor power stage boards
via signals on the UNI-3 connector. The motor driver board's Motor Supply DC Bus
Voltage, Current and Motor Phase Currents are sensed on the power stage board. The
conditioned signals are transferred to the DSP board via the UNI-3 connector. These
analog input signals are compared to a limit set by trimpots. If the input analog signals are
greater than the limit set by the trimpot, a DSP digital voltage-compatible +3.3V DC fault
signal is generated.
Technical Summary
2-15
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