SECTION 3 - CHASSIS & TURNTABLE
3-70 3121714
RBS Start RBS shutdown
Call to start Manual 48V DC applied to the input
Automatic 1 Low battery voltage (below 48VDC)
2 Low engine temperature (below 5°C)
3 Low start battery voltage (below
12.2V)
Engine star t t ime delay RB S w ai ts to ve ri fy tha t c all to star t i s
valid (not a transient condition).
Preheat delay - if engine temperature is below 32°F
(0°C)
Crank time
(Rest time)
RBS will crank and rest until engine
starts, or Overcrank fault is indicated
after 3 failed crank cycles.
Time delay bypass RBS waits until normal engine operat-
ing conditions are reached before Low
oil pressure and Underspeed faults are
monitored.
Call to start removed Manually Inhibit run input applied
Automati-
cally:
1 B at ter y vo lta ge above 54 VD C a nd
finish charging current below 30ADC
2 Engine temperature above 8°C
3 Start battery voltage above 12.9V
and finish charging current below
30ADC
Engine run time delay This period ensures that no further call
to start conditions occur prior to cool-
down period.
Cool-down period Alternator output is reduced to a mini-
mal level to allow the engine to cool
down.
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