33
12 Appendix
Flag Code
Tag
Description
A
00000002
DisableExternalOutputCheck
Digital output tell-back not the same as set
A
00000001
EnableStackOutputCheck
Digital output tell-back not the same as set
B
80000000
StackTxSensor1OverTemperature
Above temperature limit (>58°C)
B
40000000
StackTxSensor2OverTemperature
Above temperature limit (>58°C)
B
20000000
NegativeEndPlateTxSensorOverTemperature Above temperature limit (>58°C)
B
10000000
PositiveEndPlateTxSensorOverTemperature Above temperature limit (>58°C)
B
08000000
AirInletTxSensorOverTemperature
Above temperature limit (>58°C)
B
04000000
Rail5V1EnableOutputCheck
Digital output tell-back not the same as set
B
02000000
Rail5V2EnableOutputCheck
Digital output tell-back not the same as set
B
01000000
Rail12V1EnableOutputCheck
Digital output tell-back not the same as set
B
00800000
Rail12V2EnableOutputCheck
Digital output tell-back not the same as set
B
00400000
StackOverVoltage
Stack voltage above threshold (>80V)
B
00200000
StackUnderVoltage
Stack voltage below threshold when fuel on and
not POC (<36V)
B
00100000
StackOutputOverCurrent
Stack output current above DCDC input max
current (>40A)
B
00080000
UnexpectedStackOutputCurrent
Stack output current above threshold when the
DCDC is not enabled (>3A)
B
00040000
FanPulseOverCurrent
Current to POC load resistor above threshold
(>250A)
B
00020000
UnexpectedFanPulseCurrent
POC load resistor current above threshold when
the load resistor is not enabled (>3A)
B
00010000
LoadDcdcOutputOverVoltage
Output voltage is above threshold (>85A)
B
00008000
LoadDcdcOutputControlLost
Output voltage is significantly above set point
(>3A than setpoint)
B
00004000
LoadDcdc1OuputCheck
SPM 1 Output voltage below setpoint
(difference >2V) AND output current is
below limit (difference >3A). Implies a
DCDC output power fault.
B
00002000
LoadDcdc2OuputCheck
SPM2 Output voltage below setpoint
(difference >2V) AND output current is
below limit (difference >3A). Implies a
DCDC output power fault.
B
00001000
BalanceOfPlantUVWarningA
BOP voltage below limit (<35V)
B
00000800
BalanceOfPlantUVDenyStart
BOP Under Voltage before start command (<35V)
(this will deny start)
B
00000400
BalanceOfPlantUVWarningB
BOP Under Voltage warning flag (<30V)
B
00000200
FanEscTelemetryCrcFault
Fan ESC telemetry fault
B
00000100
FanEscTelemetryNoMessages
No communications from the fan ESC
B
00000080
HighFanPulseCurrentAbort
POC aborted due to higher than expected
current (<45V)
B
00000040
SafetyPairFault
Both safety voltages lost from SPM while SPM
is operating