14 •
Installation
Fieldbus Dependent I/O Module
INTERBUS
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
17 18
25 26
WAGO-I/O-SYSTEM
752
INTERBUS
16
DI/16DO
ITEM-NO.
752-824
INPUT I
OUTPUT O
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
0V
24V
Fig. 4-6: Power supply
g1x2400x
Two carrier rail contacts are provided on the underside of the base module to
ensure electrical contact between the grounded carrier rail and the I/O module.
The contacts are directly connected to the terminal block.
Note
Ensure that solid contact is made between the carrier rail contact on the under-
side of the base module and the carrier rail itself.
The carrier rail must be grounded.
4.2.2 Connection of the Module Supply Voltage
The connection of the module supply voltage and earth ground is made on
terminal blocks carrying the following labeling:
•
24V (red terminal block)
•
0V (blue terminal block)
•
(green terminal block)
Connection of earth ground to the base module’s ground terminal is required
for reliable module operation.
