Viewing Data On The Local Hmi; Protection Indicator Leds - ABB RELION REB500 Operation Manual

Section 5
Local HMI
5.3.2

Viewing data on the local HMI

The local HMI provides a quick overview of the status of the protection (normal operation, alarms and
trips) without having to connect a PC.
It is fitted in every central unit and as an option in the bay units. On the front, it has a 320 by 240 pixel
display, three protection LEDs, 19 pushbuttons and 15 signalization/alarm LEDs. The local HMI enable
the equipment to be operated and controlled simply and conveniently where it is installed. An interface is
also provided for connecting a PC via RS45.
Whether on the central unit or a bay unit, the local HMI enables the following to be viewed:
• Current and voltage measurements
• Statuses of inputs and outputs
• Alarms (generated by the respective bay unit)
• System (or respective bay unit) settings
• Settings of all the specific bay unit protection functions
IEC18000535 V1 EN-US
Figure 65:
5.3.3

Protection indicator LEDs

There are three LEDs on top of the display: green, yellow, and red.
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Local human-machine-interface (LHMI)
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Distributed busbar protection REB500
Operation manual