Operating The Et 200L From A Grounded Supply - Siemens SIMATIC ET 200L Manual

Wiring
ET 200L in Overall
Figure 3-1 shows the location of the ET 200L in the overall system (load cur-
Installation
rent voltage supply and grounding philosophy) for supply from a TN-S sys-
tem.
Remark: The arrangement of the power supply connections shown in the fig-
ure does not correspond to the actual arrangement but was chosen for the
sake of clarity.
L1
L2
L3
N
PE


Rail

AC
AC
AC
DC
AC
DC
Figure 3-1

Operating the ET 200L from a Grounded Supply

3-6
Low-voltage distribution system
for example, TN-S system
(3 400 V)
Cabinet
PS
ET 200L
L1
L +
M
N
Ground bus in cabinet

Load circuit
24 to 230 VAC for AC modules


5 to 60 VDC load circuit for non-iso-
lated DC modules

5 to 60 VDC load circuit for floating DC
modules
Electronics
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05