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Energizing the IED Chapter 7
Energizing the IED
2 Energizing the IED
When the IED is energized, the green LED instantly starts flashing. After approximately 55 sec-
onds the window lights up and the window displays ‘IED Startup’. The main menu is displayed
and the upper row should indicate ‘Ready’ after about 90 seconds. A steady green light indicates
a successful startup.
Figure 21: Typical IED startup sequence
If the upper row in the window indicates ‘Fail’ instead of ‘Ready’ and the green LED flashes,
an internal failure in the IED has been detected. See section 3.3 "
Checking the self supervision
function" in this chapter to investigate the fault.
An example of the local HMI with a small LCD is shown in figure 2.
1 IED energized. Green Light Emitting Diode (LED) starts flashing
2 LCD lights up and "IED startup" is displayed
3 The main menu is displayed. A steady green light indicates a successful startup.
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