Grounding Concept - Siemens SINUMERIK 810DE powerline Equipment Manual

2 Connection Conditions
2.1 Supplementary electrical conditions
2.1.3

Grounding Concept

The SINUMERIK 810D system consists of a number of individual components,
each of which must comply with the appropriate EMC and safety standards. The
individual system components are:
S
S
S
S
S
S
S
S
CCU box and SIMODRIVE components are fixed to a metal cabinet plate with
screws. Make sure that near the screws a low-impedance contact of the CCU
box with the cabinet panel can be made. Insulating varnishes must be removed
where possible. The connection must be kept free of corrosion.
The electronics grounds of the modules are interconnected via the unit and con-
trol bus and also routed to terminal X151 of the NE module.
The ground and module ground M should be connected at the power supply
terminal of the IM 361. Further, for the EFP, "SHIELD" and "M24" must be con-
nected in connector X1.
2-28
CCU box
Machine control panel MCP
Keyboard
Operator panels (operator panel front + PCU/TCU)
NCU terminal block
Distributor box and handheld unit
S7-300 I/O with IM 361 interface module
Single I/O module
SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition
Copyright © Siemens AG 2006