Status Led - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

Troubleshooting Faults and Alarms

11.2 Status LED

11.2 Status LED
The DCR Status LED as seen on the front metalwork cover, provides basic indication of the DCR
state. During bootup of the DCR, it provides indication of where in the boot cycle the DCR
currently is.
Status LED – Normal Bootup Operation
During normal bootup operation, the LED will be as follows:
1. Off for ~1-2 seconds
2. Alternating fast Green-Yellow-Red ~4x, about ~2-3 seconds (you will not be able to count due
to fast nature of blink pattern)
3. Then, Solid Red for next 15 seconds
4. Off for ~1-2 seconds
5. Blink Yellow fast 2x, then slow 1x
6. Off for ~1-2 seconds
7. Alternating fast Green-Yellow-Red ~4x, about ~2-3 seconds (you will not be able to count due
to fast nature of blink pattern)
8. Solid Red for ~5 seconds
9. Blink Yellow fast 3x
10.Off for ~1-2 seconds
11.Solid Green (indicating the system is ready); if CR3 is inhibited then the LED would be Solid
Red.
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