Siemens SINUMERIK 810DE powerline Equipment Manual page 29

3 x 400 V AC
N
Housing/shield
1
2
3
810D/611 digital
M (GND)
Fig. 2-1 Protective separation as per EN 61800-5-1
Fig. 2-1 shows the potential balance of the 810D/611D/S7-300 system. Legend:
1. Floating power supply of the SIMODRIVE electronics unit with 230 V AC
2. Floating transistor triggers for the three-phase rectifier bridge with 230 V AC
3. Floating transistor triggers for each axis of the three-phase inverter bridge
4. Floating signal connection from the CCU to the PCU or HHU/HT 6 with
5. Non-floating signal line between CCU and I/O devices.
6. Non-floating end user interface with protective separation for 230 VAC
7. Protectively separated 5 V DC power supply, fed from a protectively separa-
8. 24 V DC power supply unit for external devices and for the machine adapta-
9. Floating interfaces to the machine (not accessible to the end user).
10. Floating signal interfaces directly accessible to the end user (e.g. V.24). For
11. 5 V DC power supply with basic insulation, fed from a safely-isolated
Copyright © Siemens AG 2006
SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition
MSTT/MCP
4
11
4
HHU/
HT 6
Distributor box
4
5
10
5
Basic insulation Protective separation
basic insulation.
basic insulation.
with 230 V AC basic insulation.
230 V AC basic insulation.
through interfaces 1 to 4 and 7.
ted 24 V DC supply.
tion control according to applicable standards in the form of a PELV (Protec-
tive Extra Low Voltage) circuit featuring safe isolation.
these interfaces, you must always make sure that there is either safe isola-
tion with respect to the line supply voltage or that there are two basic insula-
tion levels, for 230 V AC each.
24 V DC supply.
2 Connection Conditions
2.1 Supplementary electrical conditions
PCU
24V
4
11
6
S7-300 I/Os
10
Person
8
M (GND)
7
Î Î Î
Machine
9
11
Terminal
block
2-27