WAGO I/O SYSTEM 750 XTR
System Description
27
750-333/040-000 FC PROFIBUS G2 12MBd XTR
Manual
Version 1.4.0
3.5.3.2
Dimensioning
Recommendation
A stable power supply cannot always be assumed. Therefore, you should use
regulated power supplies to ensure the quality of the supply voltage.
The supply capacity of the fieldbus coupler/controller or the internal system
supply module can be taken from the technical data of the components.
Table 5: Alignment
Internal current consumption
*)
Current consumption via system voltage
(5 V for electronics of I/O modules and
fieldbus coupler/controller).
Total current for I/O modules
*)
Available current for the I/O modules.
Provided by the bus power supply unit.
See fieldbus coupler/controller and internal
system supply module
*)
See current catalog, manuals, Internet
Example:
Calculating the current consumption on an Example Coupler:
Internal current consumption
380 mA at 5 V
Residual current for bus modules
1620 mA at 5 V
Sum I
(5 V) total
2000 mA at 5V
The internal current consumption is indicated in the technical data for each bus
terminal. In order to determine the total requirement, add together the values of
all I/O modules in the node.
Please note the aggregate current for I/O modules. It may be necessary to
supply potential!
When the sum of the internal current consumption for the I/O modules exceeds
their aggregate current, you must use a supply module with bus power supply.
Install it before the position where the permissible aggregate current would be
exceeded.
