Siemens SINUMERIK 802S Start-Up page 39

Panel installation requires that the ground connections on the MCP and OP020 are connected
together and to the panel frame. The panel frame is grounded centrally (see Fig. 2-8 ).
Grounding bar
Fig. 2-8 Grounding diagram for MCP/OP020 installation in a panel
SINUMERIK 802S
6FC5 597–2AA00–0BP2 (01.02)
OP020
MCP
Shielded signal
cable
ECU
ENCODER1 ENCODER2
X3 X4
ERR
POK
DIAG
DC24V X1
L+
M
L+
M
RS232 ENCODER3 SPINDLE AXIS OPI
X2 X5 X6 X7 X8
to chassis
Installing the Control System
Installation in a
separate unit
LCD signal-
connector
DI/O16
X2003 X2005
X10
IN OUT
MPG
L+
0 0
1
1
2 2
3 3
4
4
5 5
6 6
7 7
M M
L+
8 8
9 9
10 10
11 11
12 12
13 13
14 14
15 15
M M
DI
X20 X2004 X2006
2.5 Grounding
2-39