Interfaces, Displays and Operator Controls

4.2.2LED "Power"

The display mode of the "Power" LED can be switched over by briefly pressing the "Select/Set" button on the front panel of the OSM/ESM. The valid display mode is indicated by the display mode LEDs on the OSM/ESM.

Depending on the status of the display mode LEDs, the "Power" LED has the two following display modes:

Display mode

 

Meaning

Status of the power supplies

 

Power LED L1 or L2

In the following states of the display mode

- Lit green; in other words, power supply 1

LEDs, the Power LEDs indicate the current

or 2 (line 1 or line 2) is applied.

status of the two voltages of the OSM/ESM:

- Not lit; in other words power supply 1 or 2

Display Mode

 

 

 

 

 

(line 1 or line 2) is less than 14 V.

3

2

1

 

LED off

LED off

LED off

 

3

2

1

 

LED off

LED off

LED on

 

3

2

1

 

LED off

LED on

LED off

 

3

2

1

 

LED on

LED off

LED off

 

Note

 

 

 

LED 3 exists only on devices with digital

 

inputs.

 

 

 

 

 

 

 

56

Industrial Ethernet OSM/ESM

C79000-Z8976-C068-10

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Siemens ESM, OSM technical specifications LED Power, Display mode Meaning