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Product Selection and Project Engineering
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Supply Module
Type 9193/21-11-11
5
Product Selection and Project Engineering
5.1
Calculation of the maximum Number of ISpac Devices per pac-Bus Segment
When planning a pac-Bus segment, ensure that the sum of the nominal currents of all
ISpac devices does not exceed the value of 4 A. The value of the nominal current of an
individual device can be found in the data sheet or operating instructions of the respective
device. It must be observed that the value of the nominal current is valid in the case that a
nominal voltage of 24 V DC is applied. If the voltage deviates from the nominal voltage,
the current consumption can vary.
5.2
Assembly of the pac-Bus Segment and Positioning of the Supply Module
When mounting the devices on the pac-Bus, observe the following sequence
(see the following figure):
20296E00
Position the supply module 9193 either to the right or to the left at the beginning
of the segment (the depicted arrangement can also be installed in mirrored order);
then position all ISpac 92xx modules and afterwards the 91xx modules.
Do not install any device of the 91xx series between the supply module and the devices
of the 92xx series.
The pac-Bus and the supply module can be installed in any position.
pac-Bus element for the supply module 9193
The supply module comes with a matching pac-Bus element. Please separately order the
pac-Bus components 9194/31-17 (for ISpac 91xx), 9294/31-12 (for ISpac 92xx) and the end
terminal 9194/50-01 corresponding to the number of ISpac modules.
5.3
Concept of Auxiliary Power Supply
The supply module enables operation with a single or redundant supply of 24 V DC auxiliary
power. In order to achieve high availability, we recommend operating the supply module with
redundant supply. The supplied current flows through an interchangeable fuse.
The maximum current carrying capacity of a pac-Bus segment is 4 A.
9193/21-11-11
ISpac 92xx
ISpac 91xx
ISpac 91xx
pac-Bus 9194/50-01
pac-Bus 9194/50-01
pac-Bus 9294
pac-Bus 9194
Brücke
Jumper
ISpac 92xx
Содержание ISpac 9193/21-11-11
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