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14 •
Installation
Fig. 4-6: Power supply
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
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)
•
Connection of earth ground to the base module's ground terminal is required
for reliable module operation.
1
2
3
4
5
6
7
8
9
24V
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
0V
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
INPUT I
(green terminal block)
10 11
12 13 14 15 16
1
2
3
4
5
6
7
8
17 18
33 34 35 36 37 38 39 40
OUTPUT O
terminal block.
Fieldbus Dependent I/O Module
9
10 11
12 13 14 15 16
25 26
41 42 43 44 45 46 47 48
INTERBUS
g1x2400x
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