Operator control (hardware)
3.1 Operator control and display elements
Note
While the control unit is starting up, all LEDs are illuminated yellow for a brief time. You can
carry out a detailed diagnosis using a PG/PC and the Engineering System.
LED displays
Table 3-1 Meaning of LED states
Name Function State Meaning
RDY Ready OFF D4xx is deenergized.
Flashing red (0.5 Hz) SIMOTION Compact Flash has begun
to boot, however, a boot error, such as
faulty firmware, has occurred.
Red SINAMICS Integrated has not started
up (firmware not available or faulty) or
a drive fault has occurred.
Green D4xx is ready to operate: SIMOTION
is running, and SINAMICS Integrated
is ready to operate.
Flashing red/yellow (2Hz) Faulty D445 fan module (not inserted
or insufficient speed)
RUN SIMOTION RUN Flashing green (2 Hz) LED flashes green from startup of
RUN mode until RUN mode is
reached.
Green This LED indicates that the user
program is running. D4xx is in
SIMOTION RUN mode.
STOP SIMOTION STOP Flashing yellow (0.5 Hz) SIMOTION is requesting an overall
reset.
Flashing yellow (2 Hz) LED flashes yellow from selection of
STOP mode until STOP mode is
reached.
Yellow This LED indicates that no user
program is running. The technology
packages are not active.
SU/PF SIMOTION
STOPU
Flashing yellow (2 Hz) LED flashes yellow from selection of
STOPU mode until STOPU mode is
reached.
Yellow This LED indicates that the technology
packages are active. No user program
is being executed.
SF SIMOTION SF OFF SIMOTION portion of D4xx is
operating without errors.
Flashing red (0.5 Hz) Underlicensing
No license exists for
ects under
license.
technology/optional obj
D4xx
3-2 Manual, 12.2004, 6AU1900-1AJ32-0BA0
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