Siemens SINUMERIK 802C - Page 37

Installing the Control System
2.5 Grounding
2-37
SINUMERIK 802C
6FC5 597–3AA20–0BP2 (01.02)
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 ).
DC24V X1
ERR
DIAG
POK
L+
M
L+
M
X2003 X2005
X2004 X2006
0
1
2
3
4
5
6
7
M
L+
0
1
2
3
4
5
6
7
M
8
9
10
11
12
13
14
15
M
L+
8
9
10
11
12
13
14
15
M
IN
OUT
RS232
X2
SPINDLE
X5
ENCODER3
X6
OPI
X8
AXIS
X7
X10
MPG
DI
X20
ENCODER2
X4
ENCODER1
X3
ECU
DI/O16
Grounding bar
to chassis
Installation in a
separate unit
Shielded signal
cable
OP020
MCP
LCD signal-
connector
CFL
Fig. 2-8 Grounding diagram for MCP/OP020 installation in a panel