Placing Power Modules - Siemens ET 200pro Operating Instructions Manual

2.6

Placing Power Modules

2.6.1 Placement of PM-E power module
Power modules
In the ET 200pro distributed I/O system, you can place the power modules at any location to
the right of the interface module. The first power module is already integrated in the interface
module.
Each power module installed in the ET 200pro configuration interrupts the load voltage bus
and provides a new potential group (supply source) for the 2L+ load voltage supply. This
power module feeds all downstream load supplies of the electronic modules. Each power
module is equipped with a replaceable fuse for device protection. Only line protection in
accordance with DIN VDE 0100 still has to be provided externally.
The power module does not interrupt the 1L+ electronic/encoder supply, but rather loops it
through.
Opening a new potential group
①
②
③
④
⑤
⑥
⑦
See also
PM-E power module (Page 319)
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
Potential group 1
Potential group 2
Potential group 3
Backplane bus
1L+ electronic/encoder supply
2L+ load voltage supply
Opening a new potential group for 2L+ using a power module
Application Planning
2.6 Placing Power Modules
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