Assignment planning
3.6 Configuring the electrical structure
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
49
Rules on the Power Consumption and Power Loss of an ET 200M
For their operation, the S7-300 modules use the necessary power from the backplane bus as
well as, if necessary, from an external load power supply.
●
The current consumption of all signal modules from the backplane bus must not exceed
the electrical output that the IM 153-x can supply to the backplane bus.
●
The PS 307 power supply is dependent on the current consumption from the 24 V load
power supply; this is the result of the total of the current consumption of the signal
modules and all other connected loads.
●
The power loss of all the components in a cabinet must not exceed the maximum thermal
rating of the cabinet.
Tip:When establishing the required dimensions of the cabinet, ensure that the
temperature inside the cabinet does not exceed the permissible 60°C even where
external temperatures are high
You will find the values for the power consumption and power loss of a module under the
technical specifications of the relevant modules.
Содержание IM 153-4 PN
Страница 186: ...Functions 8 9 SNMP ET 200M 184 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Страница 226: ...Interrupt error and system messages 9 2 PROFINET IO ET 200M 224 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Страница 254: ...Order Numbers for the ET 200M ET 200M 252 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Страница 268: ...Glossary ET 200M 266 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...