Siemens SIMATIC S5-95F, Руководство пользователя, Страница: 122 / 579

S5-95F Expansion of Basic System with External I/Os
5.9 Grounded or Non-Grounded S5-95F Configuration
The S5-95F can be configured both with a grounded or with an isolated (non-grounded) reference
potential.
Configuration with Grounded Reference Potential
Usually, you should configure the S5-95F with a grounded reference potential. The grounded
configuration ensures a very high degree of interference immunity. Interference currents that occur
are discharged by the standard mounting rail to the protective conductor.
Figure 5-24 shows the connections necessary for a grounded S5-95F configuration.
a a a a
a a a a
a a a a
a a a a
Protective conductor bar
a a a a
a a a a
a a a a
a a a a
Subunit B Subunit A
a a a a a
a a a a a
a a a a a
a a a a a
a a a a a
a a
a a a a
a a
a a
I
O
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
L+
DC 24 V
M
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
A B
L+
32
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
.0
.1
.2
.3
.4
.5
.6
.7
33
.0
.1
.2
.3
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
.4
.5
.6
.7
.0
.1
.2
.3
M
L+
34
.0
.1
.2
.3
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
L+
32
.0
.1
.2
.3
.4
.5
.6
.7
a a a a a
a a a a a
a a a a a
OUT
a a a
a a a
a a a
IN
a a a a a a a
a a a a a a a
a a a a a a a
DIGITAL
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
33
.0
.1
.2
.3
.4
.5
.6
.7
M
a a
a a
a a
A
a a a
a a a
a a a
B
a a a a a a a
a a a a a a a
a a a a a a a
Battery
a a
a a
a a
a a
I
O
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
L+
DC 24 V
M
a a a a a
a a a a a
a a a a a
a a a a a
a a a a a
a a a a a
A B
L+
32
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
.0
.1
.2
.3
.4
.5
.6
.7
33
.0
.1
.2
.3
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
.4
.5
.6
.7
.0
.1
.2
.3
M
L+
34
.0
.1
.2
.3
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
a a a a
L+
32
.0
.1
.2
.3
.4
.5
.6
.7
a a a a
a a a a
a a a a
a a a a
IN
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
a a a
33
.0
.1
.2
.3
.4
.5
.6
.7
M
a a a
a a a
a a a
a a a
A
a a a
a a a
a a a
a a a
B
a a a a a a a
a a a a a a a
a a a a a a a
Battery
a a a a a
a a a a a
a a a a a
a a a a a
a a a a a
Figure 5-24. Grounded S5-95F Configuration
To configure the S5-95F with a grounded reference potential, you should proceed as follows:
Connect the terminal of subunit A and subunit B with the standard mounting rail.
Connect both subunits with each other.
Connect the standard mounting rail with the protective conductor.
EWA 4NEB 812 6210-02
5-27