Siemens HiPath 1130 - Figure 4-32 Diagram of Power Supply Configuration for the Hipath 1130;1150 Systems; Recommendations Concerning the Power Supply and Protection of the System

Recommendations concerning the Power Supply and Protection of the System
Installation For internal distribution only
A31003-K1250-S100-12-7619
4-42 HiPath 1100, Service Manual
4.12 Recommendations concerning the Power Supply and
Protection of the System
Instructions for Solving Possible Ground Return Problems
Protective Ground Connection
Example of a Power Supply Configuration for the HiPath1130/1150/1190 Systems
8. “Performing a Visual Inspection” on page 4-48.
9. Configure the required data (see “Operation” on page 6-1).
To avoid ground return signals from remote systems use the same phase for the dif-
ferent systems’ power supply.
If the building’s features make this impossible, use an intermediate transformer to
detach the external system so that damage may be avoided during operation.
Danger
The HiPath1130/1150/1190 power supplies must be protected by an earth ground in
a separate safety ground conductor (PE - green/yellow) (TN-S system, minimum sec-
tion = 2.5 mm
2
) as shown in Figure 4-32.
Any additional servicing of low voltage networks (100 - 240 V AC) must be done by
qualified technical personnel only.
Do not use as a grounding point:
- Central heating systems
- Sewer systems
- Ground wire for antennae systems.
Failure to comply with these recommendations may lead to hazardous conditions.
Figure 4-32 Diagram of Power Supply Configuration for the HiPath 1130/1150 Systems
Step Procedure
!
L1 N PE
127 Vac
HiPath1130/1150/1190