1MRK 500 132-UUS Rev. B
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Test
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Diagnostic information
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Central unit
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5.4
Alarms
The yellow LED on the Multipage button signals the alarm state:
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Off: No pending alarm in list
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On: Pending alarms in list, acknowledged
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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.
The following alarms can be displayed:
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Busbar protection blocked
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Breaker failure protection blocked
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End fault protection blocked
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OCDT blocked Overcurrent protection blocked
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Pole discrepancy protection blocked
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Bay unit alarm
Distributed busbar protection REB500
Operation manual
LED Test
Test Trip
Product Identifiers
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IEDProdType
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Firmware Version
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Serial Number
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Production Date
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Ordering Number
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Order Code
CPU Load
System Logger
Measurements
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Bus zones
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Binary inputs
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Binary outputs
Settings
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System response
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Busbar protection
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Section 5
Local HMI
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