Name Values (Range) Unit Step Default Description
t1Min 0.000 - 60.000 s 0.001 0.000 Minimum operate time for inverse curves
for step 1
HarmRestrain1 Off
On
- - On Enable block of step 1 from harmonic
restrain
DirMode2 Off
Non-directional
Forward
Reverse
-
- Non-directional Directional mode of step 2 (off, non-
directional, forward, reverse)
IN2> 1 - 2500 %IB 1 50 Operate residual current level for step 2 in
% of IBase
t2 0.000 - 60.000 s 0.001 0.400 Independent (definite) time delay of step 2
IMin2 1 - 10000 %IB 1 50 Minimum operate current for step 2 in % of
IBase
HarmRestrain2 Off
On
- - On Enable block of step 2 from harmonic
restrain
DirMode3 Off
Non-directional
Forward
Reverse
-
- Non-directional Directional mode of step 3 (off, non-
directional, forward, reverse)
IN3> 1 - 2500 %IB 1 33 Operate residual current level for step 3 in
% of IBase
t3 0.000 - 60.000 s 0.001 0.800 Independent (definite) time delay of step 3
IMin3 1 - 10000 %IB 1 33 Minimum operate current for step 3 in % of
IBase
HarmRestrain3 Off
On
- - On Enable block of step 3 from harmonic
restrain
DirMode4 Off
Non-directional
Forward
Reverse
-
- Non-directional Directional mode of step 4 (off, non-
directional, forward, reverse)
Characterist4 ANSI Ext. inv.
ANSI Very inv.
ANSI Norm. inv.
ANSI Mod. inv.
ANSI Def. Time
L.T.E. inv.
L.T.V. inv.
L.T. inv.
IEC Norm. inv.
IEC Very inv.
IEC inv.
IEC Ext. inv.
IEC S.T. inv.
IEC L.T. inv.
IEC Def. Time
Reserved
RI type
RD type
- - ANSI Def. Time Time delay curve type for step 4
IN4> 1 - 2500 %IB 1 17 Operate residual current level for step 4 in
% of IBase
t4 0.000 - 60.000 s 0.001 1.200 Independent (definite) time delay of step 4
k4 0.05 - 999.00 - 0.01 0.05 Time multiplier for the dependent time
delay for step 4
Table continues on next page
Section 8 1MRK 502 048-UEN A
Current protection
190
Technical manual
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