Motor Protection Logic
Technical Summary
2-21
2.16.2 Secondary UNI-3 Motor Protection Logic
The Secondary UNI-3 interface is similar to the Primary UNI-3 interface. The Secondary
UNI-3 Over-Voltage signal is connected to the DSP’s PWM group B’s fault input,
FAULTB1. The three Secondary UNI-3 Phase Over-Current signals are connected to the
DSP’s PWM group B fault inputs, i.e., FAULTB1, FAULTB2 and FAULTB3. The
Secondary UNI-3 interface is similar to the circuits contained in
. The
FAULTB1 input can be sourced from the Phase A Over-Current circuit or the DC Bus
Over-Current circuit. Jumper JG16, provides the selection; reference
and
.
Figure 2-13. DC-Bus Over-Voltage and Phase Over-Current Detection Circuits
+5.0V
+
–
+5.0V
+3.3V
V_sense_DCB
FAULT0
LM393
+
–
+5.0V
+5.0V
+3.3V
FAULT2
PHB_IS
LM393
DC BUS VOLTAGE SENSE
EXAMPLE DC PHASE CURRENT SENSE
Содержание Digital DNA DSP56F807
Страница 2: ......
Страница 12: ...xii DSP56F807EVM Hardware User s Manual ...
Страница 53: ... DSP56F807EVM Schematics A 1 Appendix A DSP56F807EVM Schematics ...
Страница 72: ...A 20 DSP56F807EVM Hardware User s Manual ...
Страница 79: ......