Section 2 1MAC308145-MB E
RER620 overview
16 RER620
Application Manual
used to acknowledge alarms, reset indications, provide help and switch between local and
remote control mode.
Figure 5: LHMI keypad with object control, navigation and command push-buttons
and RJ-45 communication port
2.4 Web HMI
The WHMI enables the user to access the relay via a web browser. The supported web
browser versions are Internet Explorer 9.0, 10.0 and 11.0.
WHMI offers several functions.
• Alarm indications and event lists
• System supervision
• Parameter settings
• Measurement display
• Oscillographic records
• Phasor diagram
The menu tree structure on the WHMI is almost identical to the one on the LHMI.
WHMI is enabled by default.
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