Diagnostics; Diagnostics Via Leds; Control Units; Description Of The Led States Of A Cu 320-2 - Siemens SINAMICS S120 Commissioning Manual

Diagnostics

This chapter describes the following diagnostic features of the SINAMICS S drive system:
● Diagnostics via LEDs
● Diagnostics via STARTER
● Diagnostic buffer
● Fault and alarm messages
3.1

Diagnostics via LEDs

3.1.1

Control Units

3.1.1.1

Description of the LED states of a CU 320-2

The various states of the Control Units CU320-2DP and CU320-3PN during power-up and
during operation are displayed using LEDs on the Control Unit. The duration of the individual
statuses varies.
Table 3- 1
LED
RDY
DP / PN
OPT
● If an error occurs, the booting procedure is terminated and the cause is indicated
● Once the unit has successfully booted up, all the LEDs are switched off briefly.
● Once the unit has booted up, the LEDs are controlled via the loaded software.
Commissioning Manual
Commissioning Manual, (IH1), 01/2011, 6SL3097-4AF00-0BP1
LEDs
Function
Ready
PROFIdrive cyclic operation via PROFIBUS (DP) or PROFINET (PN)
OPTION
accordingly via the LEDs.
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