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OC
.01023245
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3-19
Table 3-13. Fault and Miscellaneous Status
Byte Bit
Bit
Definition
7(MSB) Parity
6
Complement of bit 5
5
Helix Over Voltage
4 Helix
Under
Voltage
3
Helix Average Over Current
2
Power Supply Arc Trip
1
DC Buss Under Voltage
1
0(LSB)
Helix Voltage Detected in Standby
7(MSB) Parity
6
Complement of bit 5
5 Reflected
RF
4
PS Thermal/Interlocks Open
3
TWT Thermal Fault
2 High
RF
Fault
1 Low
RF
Fault
2
0(LSB)
External Interlock Fault
7(MSB) Parity
6
Complement of bit 5
5 Not
used
4 Not
used
3 Not
used
2 Not
used
1
Not used (this was originally Low Airflow Fault)
3
0(LSB)
SSIPA Over Current Fault