Siemens Argus 7SR21 Technical Manual page 256

Overcurrent relay
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Description
E4 Equation
Enable or Disable logic equation E4
E4
Specify logic equations of the form En =
<Operand><Operator><Operand>using the
following:0123456789=Digit() = Parenthesis! = NOT operation.
= AND operation^ = EXCLUSIVE OR operationE(followed by a
digit) = Equation numberF (Followed by a digit) = Function Key
numberI(Followed by a digit) = Binary Input numberL(Followed
by a digit) = LED numberO(Followed by a digit) = output relay
numberV(Followed by a digit) =Virtual Input/Output
number.ExamplesMake a function key LED toggle when
function key is pressed
(requires E1 to drive L11 in output
matrix)E1 = F3^L11
E4 Pick-up Delay
Time before equation output operates, after equation satisfied
E4 Drop-off Delay
Time before equation output resets, after equation nolonger
satisfied
E4 Counter Target
Select number of times equation must be satisfied before
equation output operates
E4 Counter Reset Mode
Select type of counter reset mode
E4 Counter Reset Time
Select counter reset time
E5 Equation
Enable or Disable logic equation E5
E5
Specify logic equations of the form En =
<Operand><Operator><Operand>using the
following:0123456789=Digit() = Parenthesis! = NOT operation.
= AND operation^ = EXCLUSIVE OR operationE(followed by a
digit) = Equation numberF (Followed by a digit) = Function Key
numberI(Followed by a digit) = Binary Input numberL(Followed
by a digit) = LED numberO(Followed by a digit) = output relay
numberV(Followed by a digit) =Virtual Input/Output
number.ExamplesMake a function key LED toggle when
function key is pressed
(requires E1 to drive L11 in output
matrix)E1 = F3^L11
E5 Pick-up Delay
Time before equation output operates, after equation satisfied
E5 Drop-off Delay
Time before equation output resets, after equation nolonger
satisfied
E5 Counter Target
Select number of times equation must be satisfied before
equation output operates
E5 Counter Reset Mode
Select type of counter reset mode
E5 Counter Reset Time
Select counter reset time
E6 Equation
Enable or Disable logic equation E6
Unrestricted ©2018 Siemens Protection Devices Limited
Range
Disabled, Enabled
(20 Character String)
0, 0.01 ... 14300, 14400
0, 0.01 ... 14300, 14400
1, 2 ... 998, 999
Off, Multi-shot, Single-shot
0, 0.01 ... 14300, 14400
Disabled, Enabled
(20 Character String)
0, 0.01 ... 14300, 14400
0, 0.01 ... 14300, 14400
1, 2 ... 998, 999
Off, Multi-shot, Single-shot
0, 0.01 ... 14300, 14400
Disabled, Enabled
7SR220 Settings Guide
Default
Disabled
0 s
0 s
1
Off
0 s
Disabled
0 s
0 s
1
Off
0 s
Disabled
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