Siemens SIMATIC S5-90U System Manual page 76

Installation Guidelines
Grounded Configuration of an S5-95U
(1)
L1
L2
L3
N
PE
(4)
M
M
Figure 3-27. Grounded Configuration of the S5-95U with a 24 V DC Power Supply
(with Safe Electrical Isolation in Accordance with DIN VDE 0160) for a
Programmable Controller and Non-Floating, External I/Os
3-28
(2)
(3)
L+
(8)
(9)
(5)
(6)
L+
S5-95U
L+
M DI
1
2
S5-90U/S5-95U
DI DO DO
1 1 1
2 2 2
EWA 4NEB 812 6115-02b