Siemens Simatic ET 200pro FC, Руководство по эксплуатации

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ET 200pro FC
Operating Instructions, 07/2016, A5E01100763B AC
39
Installation
4
4.1 Prerequisites and maximum expansion
Maximum mechanical expansion
The maximum expansion of an ET 200pro is reached when one of the rules outlined below
applies:
Table 4- 1 Maximum mechanical expansion
Features Rule
Number of modules max. 16 electronic modules
Width of ET 200pro max. 1 m mounting width (without rack)
Number of frequency converters maximum 5
Maximum electrical expansion
● Electronic / encoder supply 1L+:
–
Powers the internal electronics of the frequency converters
– Electrically isolated to the backplane bus of ET 200pro, to 2L+ and to
PROFIBUS DP/PROFINET IO
● Load voltage supply 2L+:
–
Powers the safe inputs and outputs when a safety-orientated frequency converter is
used
– Electrically isolated to the backplane bus, to 1L+ and to PROFIBUS DP/
PROFINET IO
Table 4- 2 Maximum electrical expansion
Features Rule
Electronic/encoder supply 1L+ max. 5 A per ET 200pro station; a frequency converter re-
quires 0.8 A
Load voltage supply 2L+ max. 10 A
per ET 200pro station
The load caused by the frequency converter is negligible
There is no electrical limit for a station that has been expanded with a maximum of 5
frequency converters.