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7 Access control through the Vario bus
Ranges in the Vario bus
The modules COM/ELM or
FPM 611-… are used to actuate con-
trol functions which are evaluated
and implemented by the evaluating
unit EC 602-…
In order to utilize Vario bus control
functions, an additional conductor
with 4 cores is required from the
input module to the EC 602-…
For more information on access con
-
trol, contact our Project Service.
The range depends on the type of
installation, the core diameter and
the connected load values “AW” of
the connected devices.
Range between the transformer and
input modules with star-shaped
installation.
Max.
250 m
using 0.8 mm core
diameter and with connected load
value “AW” 1.
A
second connected
load value in
the same line
halves
the range.
Connected load values AW
FPM 611-…
2
COM 611-…
1
ELM 611-…
1
EC 602-…
1
One TR 603-… supplies 2 AWs
One TR 602-… supplies 5 AWs
The conductor network laid
throughout the entire Vario bus
must not exceed 2000 m.
