7SR220 Settings Guide
Unrestricted ©2018 Siemens Protection Devices Limited Page 103 of 107
Description Range Default
Gn I^2t Counter
Selects whether the I^2t CB Wear monitor is enabled
Disabled, Enabled Disabled
Gn Alarm Limit
Sets limit before alarm is issued
10, 11 ... 99000, 100000 10 MA^2 s
Gn Separation Time
Sets the time for CB mechanism to start moving, time before
contacts start to separate
0, 0.001 ... 0.199, 0.2 0.02 s
Gn Clearance Time
Time for CB to clear fault
0, 0.001 ... 0.199, 0.2 0.04 s
Reset I^2t Count
Reset the CB wear count
3.14.3. START COUNT
Description Range Default
Start Types(s)
Selects which type of start-up
Power On, Expected, Unexpected All
Start Count Target
Selects number of times star-up has occurred before output
operatest
0, ...10000 100
3.15. Data Storage
3.15.1. Demand Data/Log
Description Range Default
Data Log Period
Selects period between stored samples
5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35,
40, 45, 50, 55, 60
5 min
Clear Data Log
Clear the Data Log
Gn Demand Window
The time window over which the Min, Max and Mean values
are calculated.
1, 2 ... 23, 24 24 hrs
Gn Demand Window Type
Method used to calculate Demand values.
Fixed, Peak, Rolling Fixed
Gn Demand Reset
Reset all Demand values
3.15.2. Waveform Storage
Description Range Default
Gn P/F Trig Storage
Select which elements trigger a waveform record
Combination of ( 51-1, 51-2, 51-3,
51-4, 50-1, 50-2, 50-3, 50-4 )
51-1, 51-2, 51-3,
51-4, 50-1, 50-2,
50-3, 50-4
Gn E/F Trig Storage
As Above
Combination of ( 51N-1, 51N-2,
51N-3, 51N-4, 50N-1, 50N-2, 50N-
3, 50N-4, 51G-1, 51G-2, 51G-3,
51G-4, 50G-1, 50G-2, 50G-3, 50G-
4 )
51N-1, 51N-2,
51N-3, 51N-4,
50N-1, 50N-2,
50N-3, 50N-4,
51G-1, 51G-2,
51G-3, 51G-4,
50G-1, 50G-2,
50G-3, 50G-4
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