Functions
58
7UM62 Manual
C53000-G1176-C149-3
Figure 2-20
Logic diagram of the Overload protection
d
Θ
d t
--------
1
τ
---
Θ
⋅
+
1
τ
---
I
2
⋅
1
τ
---
Θ
K
⋅
+
=
ON
OFF
”1”
Θ
max
L1
I
L1
I
L2
I
L3
Alarm Only
Θ
= 0
Disabled
(
Θ
K
= 40 °C)
Tripping
matrix
100 % (fixed)
&
&
FNo. 01503
FNo. 01515
FNo. 01516
FNo. 01521
FNo. 01512
FNo. 01513
FNo. 01511
FNo. 01506
Block relay
FNo. 01517
&
FNo. 01508
FNo. 01507
I
Θ
&
FNo. 01519
I>
k
τ
x
τ
CB closed
OR
OR
OR
OR
TMin
TRIP CMD
Profibus DP
4-20 mA
RTD 1