TDK Genesys - 6 Series and Parallel Supplies; Series Operation

56
83-530-000 Rev J
6. SERIES AND PARALLEL SUPPLIES
You may connect the outputs of Genesys™ power supplies together to produce:
▬ Voltages greater than any one supply rating (series connection).
▬ Plus and minus polarity (series connection).
▬ More current than any one supply rating (parallel connection).
In addition to connecting the outputs together, analog control connections are used to ensure
the supplies are properly sharing the total voltage or current. Digital remote programming
through the RS232/485, IEMD or LAN is allowed to all supplies.
NOTE
When a power supply is set to remote analog control then the corresponding
voltage or current encoder, and their PREView settings, will not be affective.
Although the front panel seems like it can be used to adjust the output settings, it
is the analog control lines that actually set the programming limits.
6.1. Series Operation
Power supplies of the SAME MODEL can be connected in series to obtain increased output
voltage. Split connection of the power supplies gives positive and negative output voltage.
CAUTION
Do not connect power supplies from different manufacturers in series
or in parallel.
Use only same models for series or parallel connection.
6.1.1. Series Connection for Increased Output Voltage
In this mode, two units are connected so that their outputs are summed. Set the current
limit of each power supply to the maximum that the load can handle without damage. It is
recommended that diodes be connected in parallel with each unit output to prevent
reverse voltage during start up sequence or in case one unit shuts down. Each diode
should be rated to at least the power supply rated output voltage and output current.
Refer to Fig.6-1 and 6-2 for series operation with local and remote sensing.
WARNING
When power supplies are connected in series, and the load or one of
the output terminals is grounded to chassis:
For models up to 60VDC Rated Output, no point may be at a greater
potential of +/-60VDC from ground
For models >60VDC Rated Output no point may be at a greater
potential of +/-600VDC from ground.
When using RS232/485 or IEEE, refer to the OUTPUT TERMINALS
GROUNDING warning, Safety Instructions.