Siemens SINAMICS S120 Installation And Start-Up Manual page 192

Diagnosis
Diagnostics using LEDs
LEDs after the Control Unit has booted
Table 6-2 Control Unit 320 – description of the LEDs after booting
LED Color
– OFF
Continuous
Green G
Flashing
2 Hz
Continuous At least one fault is present in this module.
Red
Flashing
0.5 Hz
Green/ Flashing
Red 0.5 Hz
RDY
(READY)
Continuous
Flashing
0.5 Hz
Orange
Flashing
2 Hz
6-192
Status
Electronics power supply is missing or outside
permissible tolerance range.
The module is ready for operation and cyclic
DRIVE-CLiQ communication is taking place.
Writing to CompactFlash card.
Boot error
Control Unit 320 is ready.
No software licenses.
DRIVE-CLiQ communication is being
established.
Unable to load firmware to RAM.
Firmware checksum error (CRC error).
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Description, cause
E Siemens AG, 2004. All rights reserved
Remedy
-
-
-
Remedy and
acknowledge
fault
Check whether
CompactFlash
card is plugged
in correctly
Replace
CompactFlash
card
Replace
Control Unit
POWER ON
Obtain licenses
-
Check whether
CompactFlash
card is plugged
in correctly
Replace
CompactFlash
card
Replace
Control Unit
POWER ON
Check whether
CompactFlash
card is plugged
in correctly
Replace
CompactFlash
card
Replace
Control Unit
POWER ON