Section 2 1MAC309294-MB F
RER620 overview
28 RER620
Technical Manual
Figure 5: LHMI keypad with object control, navigation and command push-buttons
and RJ-45 communication port
2.3 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.