Fig.5-1: Series connection, local sensing
Fig.5-2: Series connection, remote sensing
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.
5.14.1 Series connection for increased outp
In this mode, two units are connected so that their outputs are summed. Set the Current of each
power supply to the maximum that the load can handle without damage. It is recommended that d
odes be connected in parallel with each unit output to
prevent reverse voltage during start up s
quence 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.5
2 for series operation with local and r
Remote programming in series operation for increased output voltage:
1. Programming by external voltage:
The analog programming circuits of this power supply
are referenced to the negative output potential. Ther
fore, the circuits used to contro
unit must be separated and floated from each other.
2. Using the SO function and PS_OK signal: The Shut
Off and PS_OK circuits are referenced to the
isolated interface common, IF_COM (J1
IF_COM terminals of different units
obtain a single control circuit for the power supplies co
Do not connected power supplies from diffe
nufacturers in series or in parallel.
When power supplies are connected in series, and the load or one of the output
terminals is grounded, no point may be at a greater potential of +/
els up to 60VDC Rated Output and +/
models >60VDC Rated Output. When u
ing RS232/RS485 or IEEE, refer to the
OUTPUT TERMINALS GROUNDING warning in Section 3.9.11.
