Siemens SICAM Manual page 142

Modbus Registers
B.5 Register-Type Data – Input Registers
Bit 7
Not used
2 7
Format
Unit
Range
The following criteria explains the bit information of a ground-fault status registers:
•
If the ground fault is detected, then the ground-fault general is set to 1.
•
If the ground fault is detected in forward direction, then the ground fault direction A is set to 1.
•
If the ground fault is detected in reverse direction, then the ground fault direction B is set to 1.
•
If the ground fault is detected in an undetermined direction, then the ground fault direction A and B are
set to 1.
•
If the 1-phase-to-ground fault at phase 1 is detected, then the ground fault phase 1 is set to 1.
•
If the 1-phase-to-ground fault at phase 2 is detected, then the ground fault phase 2 is set to 1.
•
If the 1-phase-to-ground fault at phase 3 is detected, then the ground fault phase 3 is set to 1.
NOTE
i
i
The ground-fault status register shows an actual status only if the ground-type connection is isolated/reso-
nant and if the ground-current acquisition is measured.
Phase Current I
1
(Address 1058) This register contains the phase current I
Bit 15
2 15
Bit 7
2 7
Format
Unit
Range
Phase Current I
2
(Address 1059) This register contains the phase current I
Refer to Phase Current I
Phase Current I
3
(Address 1060) This register contains the phase current I
Refer to Phase Current I
Ground Current I
N
(Address 1061) This register contains the actual ground-current value I
142
6 5
Not used Ground
fault phase
3
2 6 2 5
16-bit unsigned integer
–
0 to 65535
14 13
2 14 2 13
6 5
2 6 2 5
16-bit unsigned integer
1/10 A
0 to 65535
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4 3 2
Ground Ground Ground
fault phase fault phase fault direc-
2 1 tion B
2 4 2 3 2 2
.
1
12 11 10
2 12 2 11 2 10
4 3 2
2 4 2 3 2 2
.
2
.
3
.
N
SICAM, Feeder Condition Monitor, Manual
E50417-H8940-C580-A4, Edition 03.2019
1 0
Ground Ground
fault direc- fault
tion A general
2 1 2 0
9 8
2 9 2 8
1 0
2 1 2 0