Uni-3 Motor Protection Logic; Fault0 Selection Circuit; Fault0 Source Selection Jumper - Motorola DSP56F801 Hardware User Manual

2.12.1 UNI-3 Motor Protection Logic

The UNI-3 DC Bus Over-Voltage or the UNI-3 DC Bus Over-Current signal can be
connected to the DSP's PWM fault input, FAULT0. Jumper JG3 provides the selection;
reference Figure 2-10
DC BUS VOLTAGE SENSE
V_S_DCB
DC BUS CURRENT SENSE
I_S_DCB
2-16
and Table 2-6.
+5.0V
+5.0V
Figure 2-10. FAULT0 Selection Circuit
Table 2-6. FAULT0 Source Selection Jumper
JG3
1–2 DC Bus Over-Voltage Sense input
2–3 DC Bus Over-Current Sense input
DSP56F801EVM Hardware User's Manual
+3.3V
+5.0V
UNI-3 Over-Voltage Fault Detection
+
–
LM393
+3.3V
+5.0V
+
–
LM393
UNI-3 Over-Current Fault Detection
Comment
JG3
1
2
FAULT0
3