Siemens SICAM A8000 Series User Manual

Standard I/O Modules
72 Unrestricted SICAM A8000 Series, SICAM I/O Modules
DC8-012-2.06, Edition 09.2019
2.9.6.3.1 3-Phase Voltage, 3-Phase Current
Through the current inputs I1, I2/IN, I3 the corresponding phase currents are measured. The
value IN is calculated.
This configuration is used for solidly grounded networks. In this configuration, the module
works also as a power meter.
Example: Middle-voltage network
2.9.6.3.2 3-Phase Voltage, 2-Phase Current + Sensitive Ground Current
Through the current inputs I1, I3 the corresponding phase currents are measured, I2/IN is
connected with the sensitive ground current transformer. The value I2 is calculated.
This configuration is used for isolated and resonant grounded networks.
Example: Middle-voltage network
P2P1
P2
P1
P2
P1
S2S1
S2S1
S2
S1
225 mV 225 mV 225 mV
BABA
B
A
baba
b
a
3,25 V/√3 3,25 V/√3 3,25 V/√3
20 kV 20 kV 20 kV
N
L3
L2
L1
AI-8511
X2
1 2
3
4 5
6
7
8 9
X1
1 2
3
4 5
6
7
8 9
10
DNC
I3- I3+ I1- I1+ DNC
DNC
DNC
N N N DNC
I2-/IN+ I2-/IN- U3 U2 U1
FE Shield
CC Shield
P2
P1
P2
P1
P2
P1
S2S1
S2
S1
S2
S1
225 mV
225 mV 225 mV
BABA
B
A
baba
b
a
3,25 V/√3
3,25 V/√3
3,25 V
/√3
20
kV
2
0 k
V
20 kV
N
L3
L2
L1
AI-8511
X2
1 2
3
4 5
6
7
8 9
X1
1 2
3
4 5
6
7
8 9
10
DNC I3- I3+ I1- I1+ DNC
D
NC
DNC N
N N DNC I2
-/I
N+
I2
-/IN
-
U3 U2
U1
FE Shield
CC Shield

Siemens SICAM A8000 Series Specifications

General

Modular Design	Yes
Operating Temperature Range	-40°C to +70°C
Communication Interface	Ethernet, RS485, RS232
Protection Class	IP20
Communication Protocols	IEC 61850, DNP3, Modbus, IEC 60870-5-104
Power Supply	24 V DC, 230 V AC
Mounting	DIN rail
Digital Inputs	Up to 32
Digital Outputs	Up to 16
Input Voltage Range	24 V DC to 230 V AC