1MRK 500 124-UEN Section 4
Local HMI
Operation Manual 79
Distributed busbar protection REB500
System frequency
DB Version
Index to last DB change
Date of last DB change
LED Text
• Display settings
Language
LHMI
Display Timeout
Contrast Level
Key Parameters
• Test
LED Test
• Diagnostic information
Product Identifiers
IEDProdType
Firmware Version
Serial Number
Production Date
Ordering Number
Order Code
CPU Load
System Logger
• Central unit
Measurements
Settings
4.4 Alarms
The yellow LED on the Multipage button signals the alarm state:
• Off: No pending alarm in list
• On: Pending alarms in list, acknowledged
• Flashing: New alarm in list, not yet acknowledged
Eventual system alarms can be viewed in the alarm list (Menu “Alarms“).
The operator can acknowledge an alarm using the menu item “Clear”/
“Acknowledge Alarm“ or equivalently by pressing the “clear” button.