SECTION 4. Using the Ground Support Unit (GSU)
Status
Description
WITHOUT ERRORS
No error was encountered during the last run.
FAILURE THROTTLE
PULSE
The RC’s throttle pulse failed, possibly bad signal reception or loss.
RPM SENSOR
FAILURE
Failure of the RPM sensor, either no signal or errors detected.
TEMP SENSOR
FAILURE
The temperature sensor reported implausible values and might be malfunctioning.
EXCEEDED MAXIMUM
RPM
The engine went over its hard maximum RPM limit, possibly due to a configuration
error or faulty RPM sensor.
FELL BELOW
MINIMUM RPM
The engine went below its hard minimum RPM limit, possibly due to a configura-
tion error or faulty RPM sensor.
MAXIMUM TEMP
EXCEEDED
The exhaust temperature exceeded 800
◦
C for an extended period of time.
FLAMEOUT DURING
RUN
The temperature fell below 200
◦
C, indicating a flameout.
FLAMEOUT DURING
FUEL HEAT
The temperature fell below 200
◦
C, indicating a flameout. Might be due to an
interrupted fuel supply (e.g. air bubbles).
FLAMEOUT DURING
RAMP UP
The temperature fell below 200
◦
C, indicating a flameout. Might be due to an
interrupted fuel supply (e.g. air bubbles).
RPM < 2,000 DUR-
ING FUEL HEAT
The engine could not reach the required RPM. May be due to a broken starter or a
jammed engine.
RPM < 5,000 DUR-
ING RAMP UP
The engine could not reach the required RPM. May be due to a broken starter or a
jammed engine.
BATTERY VOLTAGE
TOO LOW
The battery voltage fell below the limit set by the user in the main menu (see Section
4.5).
FUEL PUMP FAILURE
The fuel pump exceeded the maximum voltage allowed by the ECU, most likely
because it could not meet the fuel flow required for the RPM requested by the user.
This indicates a blocked fuel line or pump.
FAIL SAFE TIMEOUT
The ECU remained in fail-safe mode longer than the user allowed to classify as a
successful run (see Section 5.6).
Table 4: Run termination statuses displayed on the GSU.
Learning RC Timings
The three throttle positions (see Section 5.2) and the RC switch function (if any) must be set.
1.
THRO. LO/TRIM LO:
The
off
position. Move both throttle and trimming to minimum.
2.
TRIM TO MAXIMUM:
The
neutral
position. Keep throttle at minimum and move the trimming to max-
imum.
3.
THROTTLE MAXIMUM:
The
full
position. Move throttle to maximum and keep the trimming to maximum.
4.
SET SWITCH LO:
The switch’s
off
position.
5.
SET SWITCH HI:
The switch’s
on
position.
6. Sanity check for the throttle positions and the RC switch positions (if any) as they must be distinguishable.
If the check fails,the RC functions are disabled to avoid starting the engine with malfunctioning controls.
4.5.3
System and periphery
This sub menu settings for the system and periphery devices (see Table 7).
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