Start Count; Data Storage; Demand Data/Log; Waveform Storage - Siemens Argus 7SR21 Technical Manual

Description
Gn I^2t Counter
Selects whether the I^2t CB Wear monitor is enabled
Gn Alarm Limit
Sets limit before alarm is issued
Gn Separation Time
Sets the time for CB mechanism to start moving, time before
contacts start to separate
Gn Clearance Time
Time for CB to clear fault
Reset I^2t Count
Reset the CB wear count
3.14.3.

START COUNT

Description
Start Types(s)
Selects which type of start-up
Start Count Target
Selects number of times star-up has occurred before output
operatest
3.15.

Data Storage

3.15.1.

Demand Data/Log

Description
Data Log Period
Selects period between stored samples
Clear Data Log
Clear the Data Log
Gn Demand Window
The time window over which the Min, Max and Mean values
are calculated.
Gn Demand Window Type
Method used to calculate Demand values.
Gn Demand Reset
Reset all Demand values
3.15.2.

Waveform Storage

Description
Gn P/F Trig Storage
Select which elements trigger a waveform record
Gn E/F Trig Storage
As Above
Unrestricted ©2018 Siemens Protection Devices Limited
Range
Disabled, Enabled
10, 11 ... 99000, 100000
0, 0.001 ... 0.199, 0.2
0, 0.001 ... 0.199, 0.2
Range
Power On, Expected, Unexpected
0, ...10000
Range
5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35,
40, 45, 50, 55, 60
1, 2 ... 23, 24
Fixed, Peak, Rolling
Range
Combination of ( 51-1, 51-2, 51-3,
51-4, 50-1, 50-2, 50-3, 50-4 )
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 )
7SR220 Settings Guide
Default
Disabled
10 MA^2 s
0.02 s
0.04 s
Default
All
100
Default
5 min
24 hrs
Fixed
Default
51-1, 51-2, 51-3,
51-4, 50-1, 50-2,
50-3, 50-4
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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