Siemens SICAM A8000 Series User Manual

Standard I/O Modules
60 Unrestricted SICAM A8000 Series, SICAM I/O Modules
DC8-012-2.06, Edition 09.2019
2.8.6.2 Ground Fault Indicator
The current input I2/IN is connected via the adaptor module CM-8820 with the sum current
measuring transformer.
In this configuration, the module functions as non-directional ground fault indicator.
2.8.6.3 Fault Detector
The current inputs I1, I2/IN, I3 are connected via the adaptor module CM-8820 with the
corresponding measuring transformers. Additionally, the voltage inputs U1, U2, U3 are
connected
• through voltage transformers of 100 V/√3 with the middle-voltage network
• through voltage transformers of 415 V/√3 with the low-voltage network
• directly with 240 V with the low-voltage network
In this configuration, fault information with directional indication is output. Thereby, also all the
measured and calculated measurands are provided.
P2P1
S2S1
1 A
1
2
3
4 5
6
7
8 9
10
X1
AI-8510
225 mV
1
2
3
4 5
6
X1
1
2
3
4 5
6
7
8 9
10
I1_P
I1_N
I2_P
I2_N
I3_P
I3_N
DNC
I3- DNC
DNC
I1+ I1- I3+
CM-8820
X2
FE Shield
I2-/IN- I2-/IN+
1 2
3
4 5
6
7
8 9
10
X1
CM-8820
2
25 mV
AI-8510
X2
1 2
3
4 5
6
7
8 9
X1
1 2
3
4 5
6
7
8 9
10
DNC
N N N DNC
DNC
I3- DNC
DNC
I1+ I1- I3+ I2-/IN-
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