MQ Power WHISPERWATT DCA150SSJU4F2 Operation Manual page 64

INDUCEMENT
When the system senses improper usage such as no
supply of DEF, use of poor quality DEF, problems with
DEF jets, or disconnection of sensors, a warning will be
issued before the situation becomes critical. If the warnings
are ignored and the unit enters intermittent operation, the
emergency shutdown will activate. The three warning levels
are referenced in Table 17:
Stage
Stage 1
Warning Level 1
Stage 2
Warning Level 2
Stage 3
Shutdown
1
When emergency shutdown occurs, inspection and repair should generally be performed promptly. However, if
1
emergency protective measures are necessary, the unit will enter ESCAPE MODE and may require as much as
30 minutes to restart.
PAGE 64 — DCA150SSJU4F2/F3 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (02/16/22)
Table 17. DEF Inducement
SCR System
Controller Message
SCR System
SCR SYS ERR
Malfunction
SCR System
SCR SYS ERR
Malfunction
SCR System
SCR SYS ERR
Malfunction
DEF Symbol
Pop-Up
Slow Blinking
Fast Blinking
MAINTENANCE
Pre-Alarm Shutdown
Lamp Lamp
—
ON
—
ON
ON ON