
Alarm, fault, and system messages
9.2 Diagnostics through LEDs
ET 200pro FC
140 Operating Instructions, 11/2007, A5E01100763B AA
9.2 Diagnostics through LEDs
Description
Status LEDs are located on the front panel of the frequency converter
Status display through LEDs
The SIMATIC ET 200pro FC frequency converters have a number of functions and statuses
that can be displayed by means of LEDs.
Standard frequency converter Fail-safe frequency converter
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5HDG\WRUXQ
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66
6/6
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Colors
The frequency converter status is displayed by means of the following range of LED colors
and statuses:
Description Color Status
On Off Transitional status
(Flashing: 0.5 Hz)
Fault LED
• SF
Red
Standby LED
• RY
Green
Fail-safe LED
• ES
• STO, SS1, SLS
Yellow
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