wc_tx003871gb_FM10.fm
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Machines with Aftertreatment Exhaust System
15.5 Monitoring DEF Quality
The quality of Diesel Exhaust Fluid (DEF) is monitored by the genset controller.
When the DEF quality begins to deteriorate (or something other than DEF is put
into the DEF tank, or the sensor is disconnected/malfunctioning), the genset
controller displays messages alerting the operator as to the condition of the DEF
quality. See table below.
DEF WARNING
wc_gr012297
DEF Quality
/malfunction
Controller Message Controller / Machine Response
Noissues
detected
No message Normal screen / normal operation
Issuedetected
DEF WARNING ■ Normal operation.
■ LED flashes.
The SEVERE INDUCMT timer starts.
90 minutes after
issue is detected
DEF INDUCEMENT
■ Main circuit breaker trips.
■ Machine runs for 10 minutes, then shuts down. LED on
solid.
The machine may be restarted, but will only run for 10
minutes before the genset controller shuts down the
machine. Only the convenience receptacles are available.
165 minutes after
issue detected
DEF PRESVR INDUCMT Same as above.
180 minutes after
issue detected
DEF SEVERE INDUCMT
■ After 180 minutes of run time with a DEF quality issue,
the engine shuts itself down. This is the first of four
shutdowns allowed by the engine.
Note: The genset controller’s 10-minute run time
limitation is still active within the 180-minute engine run
time limit. Thus, up to seventeen restarts by the genset
controller are possible within the 180-minute engine
controlled run time.
■ The engine may be restarted, but the run time is
lessened to 30 minutes. At the 30-minute mark, the
engine shuts itself down. This is the second of four
allowed shutdowns. The genset controller’s 10-minute
run time limitation is still active. Thus, up to three
restarts by the genset controller are possible within the
30-minute engine controlled run time limit. On the fourth
shutdown, the engine controller will lock out the engine.
The engine can only be unlocked by a Cummins service
technician.
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