Mechanical and electrical configuration
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X20 system User's Manual 3.10
3.12 Output modules with supply
Generally, a power supply module is also necessary for current output modules with many channels, such as the 8
channel output module with 2 amp outputs. This is not the case with the X20 system. With this module, the supply
is provided directly on the module, thereby saving power supply modules and construction width.
3.13 Bus receiver with supply
The X20BR9300 bus receiver for the X20 system is equipped with a supply for X2X Link as well as for the internal
I/O supply. This eliminates the need for an additional power supply module.
3.14 Supply module for internal I/O supply
The first I/O modules in an X20 system are supplied by the bus receiver. The internal I/O supply is refreshed via
the X20PS2100 power supply module.
3.15 Power supply module for internal I/O supply and bus supply
The X2X Link is fed by the X20BR9300 bus receiver. After approx. 30 modules (see section 3.23 "Calculating the
power requirements" for a calculation example), the supply must be "refreshed". The X20PS3300 power supply
module is used for this. This module is equipped with a feed for X2X Link as well as for the internal I/O supply.
3.16 Bus transmitter with supply
The X20BT9100 bus transmitter has an integrated I/O supply feed. This saves a power supply module for the last
potential group.
3.17 Internal I/O supply failure (ModuleOk)
The ModuleOk status for monitoring the X20 modules is made up of different module parameters. A loss of voltage
in modules that are supplied via the internal I/O supply causes the ModuleOk data point to return the value 0 (false).
This affects all modules that require 0.01 W on X2X Link.
3.18 X20 system power supply
The X20 system is powered by a B&R 24 VDC power supply. B&R power supplies ensure that control systems
are reliably supplied even when operated at the minimum mains input voltage or when maximum power is output
even if there are temporary power failures (≤10 ms).
Summary of Contents for X20 System
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