(1) Description of Operation 7SR224
©2009 Siemens Protection Devices Limited Page 63 of 66
6.4.4 Fault Records
Up to ten fault records can be stored and displayed on the Fascia LCD.
Fault records provide a summary of the relay status at the time of trip, i.e. the element that issued the
trip, any elements that were picked up, the fault type, LED indications, date and time. The Max Fault
Rec. Time setting sets the time period from fault trigger during which the operation of any LEDs is
recorded.
When examined together the event records and the fault records will detail the full sequence of events
leading to a trip.
Fault records are stored in a rolling buffer, with the oldest faults overwritten. The fault storage can be
cleared with the DATA STORAGE>Clear Faults setting or using Reydisp Evolution via Relay > Data
Records > Reset Data Log Record.
6.4.5 Data Log
The Data log feature can be used to build trend and maximum/minimum demand records. Up to
10,080 individual time stamped records of each phase current and voltage (where fitted) analogue
signal are recorded and stored at a user defined rate e.g. 7 days @ 1 minute intervals and > 1 year @
1 hour intervals.
6.5 METERING
The metering feature provides real-time data available from the relay fascia in the ‘Instruments Mode’
or via the data communications interface.
For a detailed description refer to Technical Manual Section 2 – Settings and Instruments.
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