Led Displays - Siemens SINUMERIK 840D sl Equipment Manual

Description
3.4 Operator control and display elements
3.4.2

LED displays

Table 3-1 Meaning of LED states
Name Function
RDY Ready
RUN PLC RUN
STOP PLC STOP
SU/PF PLC FORCE
SF PLC SF
DP BUS1 F
DP/MPI BUS2 F
PN PN Fault
SY/MT MAINT
OPT -
Important LED states
• If all the LEDs are flashing, the PLC must be reset via the mode selector (move switch to
position "3" to reboot).
• While the NCU is powering up, all LEDs briefly light up orange. You can carry out a detailed
diagnosis using a PG/PC and the operating software.
Additional references
• You can find a detailed description of LED states during power-up in the "NCU Operating
System (IM7)" section of the Basesoftware and Operating Software Commissioning Manual.
• For information on drive faults and alarms, see also:
SINAMICS S120/S150 List Manual (LH1)
28
Status
Red
Flashing red/orange
(0.5 Hz)
Orange
Flashing orange (0.5 Hz)
Flashing orange (2 Hz)
Green
Flashing green/orange or red/
orange (1 Hz)
Green
Orange
Red
Red
Red
Red
Red
Orange
-
Meaning
There is at least one fault (e.g. RESET, watchdog monitoring
etc.) or the NCU is booting up.
Error accessing CompactFlash Card
Accessing CompactFlash Card
Updating the firmware of the connected DRIVE-CLiQ compo‐
nents
Firmware update is complete for components. Wait for POW‐
ER ON for the components in question.
NC powered up and everything in cyclic mode
LED-supported recognition of connected DRIVE-CLiQ compo‐
nent is activated: (p0124[0] = 1).
PLC ready to operate
PLC stopped
FORCE activated
PLC group error
PROFIBUS group error X126
PROFIBUS group error X136
PROFINET IO group error X150
• Synchronization status (SY): No function
• Maintenance status (MT) of the NCU:
Maintenance request pending
No function
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
NCU 7x0.3B PN