Troubleshooting Guide Manual

A-2
SA500 Diagnostics, Troubleshooting, and Start-Up Guidelines
Vcc Power Supply Undervoltage Fault Bit 3
The Vcc Power Supply Undervoltage Fault
bit is set if the input to the +5V supply on the
PMI drops below the necessary voltage to
maintain regulation.
Position Error Fault Bit 4
The Position Error Fault bit is set if the
position error exceeds the value set in the
PMI Tach Loss Maximum Position Error
register (register 166/1166).
Speed Error Bit 5
The Speed Error Fault bit is set if the
maximum velocity error exceeds the value
set in the PMI Tach Loss Maximum Velocity
Error register (register 156/1156).
The Resolver Broken Wire Fault bit is set if a
sine or cosine signal from the resolver is
missing due to a broken wire or if the
resolver gain tunable (RES_GAN%) has
been set too low.
Overspeed Fault Bit 10
The Overspeed Fault bit is set if the motor’s
velocity exceeds the value entered as the
Overspeed Trip (RPM) configuration
parameter.
PMI Power Supply Fault Bit 12
The PMI Power Supply Fault bit is set if the
PMI power supply is not working correctly