GW Instek PSU-Series User Manual - Manual (Page 82)

PSU Series User Manual
82
Series Connection
to Output
Positive and
Negative Polarity
Unit #2
Unit #1 Load
Input
Input
Output
Ground
Output
Output
Ground
Output
COM
Note: 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.
Caution
When connecting the units in series, diodes should
be connected across each output to prevent
reverse voltage.
Steps 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. Page 43