Siemens SINUMERIK 840D sl Commissioning Manual page 805

1.4 Displays during system booting
Behavior of the LEDs when booting
Of the LEDs on the front panel of the NCU, only the RDY LED and its status is important
when booting up the NCU.
LED: LED designations:
RDY RUN STOP SU/PF
SF DP1 DP2 OPT
Orange Orange
Slowly flashing Set by PLC/option module
orange (0.5 Hz)
Slowly flashing Set by PLC/option module
orange/green
(0.5 Hz)
OFF Set by PLC/option module
green/red flashing Set by PLC/option module
0.5 Hz)
red Set by PLC/option module
red (5 Hz) Set by PLC/option module
SINAMICS faults and alarms, also see: SINAMICS S120/S150 List Manual (LH1)
Load BIOS
7-segment
display
NCU operating system (IM7)
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
Meaning
00 Before loading the Master Boot Record (MBR) from the CompactFlash Card
01 Before starting the Master Boot Record (MBR) codes
02 Master Boot Record (MBR) code started
03 Second stage of the boot loader started, before reading the configuration file
04 Before loading the kernel
05 Before starting the kernel
1.4 Displays during system booting
State/phase
BIOS boot
Booting up the kernel
Phase 2: Initialization of the
driver
Booting the basic system
Phase 3: Initialization of the
basic system
NRK/NCK outputs
Basic system shutdown
Kernel shutdown
SINAMICS fault
System settings
7-segment display
Post codes, see table: Load
BIOS
1
See table: Load operating
system
See table: NRK/NCK outputs
OFF
OFF
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