1.
Press .
2.
To confirm logout, select Yes and press
.
A070837 V3 EN
Figure 14: Logging out
•
To cancel logout, press .
4.1.3 Turning the display backlight on
The display backlight is normally off. It turns on during the display test at power up.
• To turn on the backlight manually, press any LHMI push button.
The backlight turns on and the panel is ready for further operations.
If the panel has not been used for a predefined timeout period, the backlight is switched
off. The user is logged out from the current user level 30 seconds after the display
backlight has turned off.
The display returns to the default view and all unconfirmed operations such as parameter
editing and breaker selection are cancelled.
Change the backlight timeout period in Main menu/
Configuration/HMI/Backlight timeout.
4.1.4 Selecting local or remote use
The control position of the protection relay can be changed with the R/L button. In local
position primary equipment, such as circuit breakers or disconnectors, can be controlled
1MAC456939-IB D Section 4
Using the HMI
620 series ANSI 43
Operation Manual
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