Siemens 7SR18 Solkor - Page 348

7SR18 Commissioning & Maintenance Guide
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of
4.4 TRIP/CLOSE CIRCUIT SUPERVISION (74T/CCS)
46
BC
46
NPS
(x2)
37
(x2)
49
50
BF
I
L1
(I
A
)
81
HBL
2
37
(x2)
49
50
BF
I
L2
(I
B
)
81
HBL
2
37
(x2)
49
50
BF
I
L3
(I
C
)
81
HBL
2
I
4
(I
G
)
74
T/
CCS
NOTE: The use of some
functions are mutually exclusive
50
(x2)
51
(x2)
50N
(x2)
50
(x2)
50
(x2)
51
(x2)
51
(x2)
51N
(x2)
50G
(x2)
51G
(x2)
60
CTS
50
BF
51c
51c
51c
Figure 4.4-1 Trip Circuit Supervision
Current Inputs: n/a
Disable:
Map Pickup LED: 74TCS-n - Self Reset
The T/CCS-n Delay can be initiated by applying an inversion to the relevant status input and measured by
monitoring of the alarm output.
TCS-n Delay setting Measured
CCS-n Delay setting Measured