Siemens SIPROTEC 4 7SJ61 Manual page 277

serves as a test for the LEDs on the front panel because they should all light when the button is pushed. Any
LEDs that are lit after the clearing attempt are displaying actual conditions.
The green "RUN" LED must light up, whereas the red "ERROR" must not light up.
Close the protective switches. If test switches are available, then these must be in the operating position.
The device is now ready for operation.
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
Mounting and Commissioning
3.3 Commissioning
277