Design - ABB RET670 Installation And Commissioning Manual

Section 7
Energizing the IED
7.3
78
1 2
0 55
IEC04000310 V1 EN
Figure 42: Typical IED start-up sequence
1 IED energized. Green LED instantly 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.
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
"Checking the self supervision function"
An example of the local HMI is shown in figure 43.

Design

The different parts of the medium size local HMI are shown in figure 43. The local
HMI exists in an IEC version and in an ANSI version. The difference is on the
keypad operation buttons and the yellow LED designation.
3
t (s)
90
xx04000310.vsd
in this chapter to investigate the fault.
Installation and commissioning manual
1MRK 504 088-UEN C
section 3.3