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ABB Industrial IT enabled REX 521 Technical Reference Manual, General page 58

Protection relay
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Directional overcurrent general START
3I>->
Directional overcurrent TRIP>
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Directional overcurrent START>>
3I>>->
Directional overcurrent TRIP>>
3I2f>
Inrush START
Is2t,n<
Start-up supervision for motors START
Is2t,n<
Start-up supervision for motors TRIP
Is2t,n<
Start-up supervision for motors STALL
3Ith>
Thermal overload (cables) START
3Ith>
Thermal overload (cables) TRIP>
3Ith>
Thermal overload (cables), Current alarm
3Ithdev>
Thermal overload protection (devices) START
3Ithdev>
Thermal overload protection (devices) TRIP
Iub>
Current unbalance START
Iub>
Current unbalance TRIP>
Master trip signal
External trip signal
Lockout
Breaker failure
0-->I
AR sequence successful
0-->I
AR interrupted
0-->I
AR in use/ not in use
0-->I
AR: change in CB position
0-->I
AR shot1
0-->I
AR shot 2
0-->I
AR shot 3
0-->I
AR shot 4
0-->I
AR shot 5
0-->I
AR shot 1 successful
0-->I
AR shot 2 successful
0-->I
AR shot 3 successful
0-->I
AR shot 4 successful
0-->I
AR shot 5 successful
0-->I
AR sequence
0-->I
AR: final trip
0-->I
AR: def. trip alarm
0-->I
AR: CB opened manually or remotely
0-->I
AR: CB operation failure
0-->I
AR: closing inhibited
0-->I
AR: lockout
I<->0
CB1: breaker 1 position***)
I<->0
IND1: disconnector 1
I<->0
IND2: earthswitch
I<->0
IND3: motor status indication
I<->0
CB1: command sequence
I<->0
CB1: open output
I<->0
CB1: close output
I<->0
CB1: opening time
I<->0
CB1: closing time
I<->0
CB1: command status
I<->0
POS: logic setting (local/remote)
58
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Technical Reference Manual, General
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