DF56 – Power Supply for Backplane 20 – 30 Vdc
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2. After the connection with long cables (DF4A, DF5A, DF6A and/or DF7A) you have to put another
power supply module in the first slot of the first rack.
3. Use up to 6 modules DF44/DF57 per power supply; always place consecutively the DF44/DF57
and close to the power supply. Because of the high current consumption of the modules
DF44/DF57, a not desired voltage drop in the bus can occur if these modules are placed after other
modules.
4. When is necessary to add interface modules, such as HI302, MB700, DF58, in the same bus
which is used by output and input modules, is recommended that these modules are placed close to
the power supply, because in the same way as described in the previous item, a not desired voltage
drop in the bus can occur if these modules are placed after other modules.
5. Adding a new power supply module
•
Determine the rack where the new power supply will be installed.
•
Cut the jumper
W1
of the rack.
•
Plug the new power supply at the first slot of the rack (slot 0).
•
In this case, the
CH1
jumper of all modules DF56 must be set in
E
position.
