IEC12000159-3-en.vsd
IEC12000159 V3 EN-US
Figure 21:
Logging off
•
To cancel logoff, press
.
5.1.4
Turning the display backlight on
AMU0600409 v9
The display backlight is normally off. It turns on 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 after the display
backlight has turned off. The factory default for display timeout is 10 minutes. The
minimum is 1 minute.
The display returns to the default view and all unconfirmed operations, for example
parameter editing and breaker selection are cancelled.
Change the backlight timeout period in
Main menu/
Configuration/HMI/Screen/SCREEN:1/DisplayTimeout
.
5.1.5
Selecting local or remote use
AMU0600434 v5
The control position of the IED can be changed with the R/L button. In local
position primary equipment, such as circuit breakers or disconnectors, can be
controlled via the LHMI. In remote position, control operations are possible only
from a higher level, such as from a substation control system or a remote control
center.
•
Press
.
•
When the L LED is lit, local control is enabled and remote control
disabled.
•
When the R LED is lit, remote control is enabled and local control
disabled.
•
When neither of the LEDs is lit, both control positions are disabled.
The control position cannot be simultaneously local and remote
but it can be disabled when neither of the positions is active.
1MRK 500 128-UEN B
Section 5
Using the HMI
650 series 2.2 IEC
43
Operation manual
