Siemens Argus 7SR21 Technical Manual page 218

Description
Gn 51-1 Dir. Control
Selects whether 51-1 element is non-directional, forward or
reverse
Gn 51-1 Setting
Pickup level
Gn 51-1 Char
Selects characteristic curve to be IEC or ANSI IDMTL or DTL
Gn 51-1 Time Mult (IEC/ANSI)
Time multiplier (applicable to IEC and ANSI curves but not
DTL selection)
Gn 51-1 Delay (DTL)
Delay (applicable only when DTL is selected for characteristic)
Gn 51-1 Min Operate Time
Minimum operate time of element.
Gn 51-1 Follower DTL
Additional definite time added after characteristic time
Gn 51-1 Reset
Selects between an ANSI decaying reset characteristic or a
definite time reset
Gn 51-1 VTS Action
Selects whether 51-1 element is blocked or made non-
directional when VTS operates
Gn 51-1 Inrush Action
Selects if the 51-1 element is blocked from operating when
2nd Harmonic Inrush Detector operates
Gn 51-1 21LB-3P Action
Selects if operation of the 51-1 element is blocked for defined
load conditions
Gn 51-1 21LB-1P Action
Selects if operation of the 51-1 element is blocked for defined
load conditions
3.4.1.2. 51-2
Description
Gn 51-2 Element
Selects whether the 51-2 IDMTL Overcurrent element is
enabled
Gn 51-2 Dir. Control
Selects whether 51-2 element is non-directional, forward or
reverse
Gn 51-2 Setting
Pickup level
Gn 51-2 Char
Selects characteristic curve to be IEC or ANSI IDMTL or DTL
Gn 51-2 Time Mult (IEC/ANSI)
Time multiplier (applicable to IEC and ANSI curves but not
DTL selection)
Gn 51-2 Delay (DTL)
Delay (applicable only when DTL is selected for characteristic)
Gn 51-2 Min Operate Time
Minimum operate time of element.
Gn 51-2 Follower DTL
Additional definite time added after characteristic time
Unrestricted ©2018 Siemens Protection Devices Limited
Range
Non-Dir, Forward, Reverse
0.05, 0.06 ... 2.49, 2.5
DTL, IEC-NI, IEC-VI, IEC-EI, IEC-
LTI, ANSI-MI, ANSI-VI, ANSI-EI
0.025, 0.03 ... 1.595, 1.6 , 1.7 ...
4.9, 5, 6 ... 100
0, 0.01 ... 19.99, 20
0, 0.01 ... 19.99, 20
0, 0.01 ... 19.99, 20
(ANSI) Decaying, 0 ... 59, 60
Off, Inhibit, Non-Dir
Off, Inhibit
Off, Inhibit
Off, Inhibit
Range
Disabled, Enabled
Non-Dir, Forward, Reverse
0.05, 0.06 ... 2.49, 2.5
DTL, IEC-NI, IEC-VI, IEC-EI, IEC-
LTI, ANSI-MI, ANSI-VI, ANSI-EI
0.025, 0.03 ... 1.595, 1.6 , 1.7 ...
4.9, 5, 6 ... 100
0, 0.01 ... 19.99, 20
0, 0.01 ... 19.99, 20
0, 0.01 ... 19.99, 20
7SR220 Settings Guide
Default
Non-Dir
1 xIn
IEC-NI
1
5 s
0 s
0s
0 s
Off
Off
Inhibit
Off
Default
Disabled
Non-Dir
1 xIn
IEC-NI
1
5 s
0 s
0 s
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