PSU Series User Manual
82
The output reference ground (COMMON) can be
grounded at the power supply side instead of the load,
depending on the requirements. Local sensing should
be used in this configuration.
When connecting the units in series, diodes should be
connected across each output to prevent reverse
voltage.
1. Ensure the power is off on both power supplies.
2. Connect the master and slave unit in series as
shown above to either increase the voltage
output or to create a positive and negative
output. Remember that how the units are
grounded depends on the configuration of the
series connection.
3. Use diodes across the output terminals to
prevent reverse voltage at startup or if one of
the units unexpectedly shuts down. Ensure the
diodes are rated to withstand the voltage and
current output of the power supply.
4. Reattach the terminal cover.
Ensure load cables have sufficient
current capacity.
Series Operation
Before using the power supplies in series, the
master and slave units need to be configured.
1. Configure the OVP, OCP and UVL
settings for each unit.
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