User manual

PSW Series User Manual
70
Master-Slave Series Overview
Background
When connecting PSW power supplies in
series, up to 2 units can be used in series and all
units must be of the same model.
When the units are used in series, a number of
precautions and limitations apply. Please read
this overview before operating the power
supplies in series.
Master
Load
Ext-V
Ext-R
Slave
VMON
IMON
Limitations
Display
 Only the master unit will display the
current.
 Master and slave units display the voltage.
The total voltage is the sum of the units.
OVP/OCP
 The master unit can shut down the slave
unit when OVP/OCP is tripped on the
master unit (if the slave connector is wired
for shut down on alarm).
 OVP and OCP level is determined by the
master OVP and OCP level. The OVP and
OCP level on the slave unit is ignored.