Siemens Sinamics S120M, Equipment Manual

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4.5 Meaning of the LEDs
Two LEDs (green/orange) are provided on the front panel to display the operating state; they
are used to display the operating state or for fault diagnostics.
In addition to being visualized via the LED, the ready signal (RDY) is also available at terminal
strip X21.
Table 4-4 Significance of the LEDs at the Adapter Module 600 (AM600)
State Description, cause
RDY DC LINK
Off Off The electronics power supply is missing or lies outside the permissible tolerance
range.
Green -
● Electronics power supply is present and in the specified range.
● Step-up controller to supply the electronics of the distributed drive line with 48
V DC is operating correctly (without fault).
● 48 V DC is available at the line.
Orange
● The DC link voltage is available at the AM600 output.
Off
● Cable protection fuses have ruptured.
● DC link voltage can be present at the busbars of the AM600.
Orange -
● Overtemperature alarm or overtemperature fault with shutdown (saved after
5 K overtemperature alarm)
Red -
● Overcurrent trip or undefined DC link voltage
● 24 V electronics power supply out of tolerance
WARNING
Electric shock due to a high DC link voltage
Independent of the state of the LED "DC LINK", hazardous DC link voltages can be present.
This means that when live components are touched this can result in death or serious injury.
● Observe the warning information on the component.
Adapter Module 600
4.5 Meaning of the LEDs
Manual, 06/2019, 6SL3097-5AW00-0BP1
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