In parallel operation, power supplies can be connected in local or remote sensing. Refer to Fig. 5
5 for typical connections of parallel power supplies. The figures show
units, however the same connection method applies for up to 4 units.
Advanced parallel operation
In this method, multiple supplies can be configured to parallel operation as a single power su
total load current and output volta
ge are displayed by the Master unit and can be readback from the
Master unit. The Slave units display only their operating status (On, Off or Fault condition).
Refer to the following procedure to configure multiple supplies for Advanced parallel operation.
1. Advanced parallel configuration.
Down in the Master Supply and up in all Slave Supplies.
Connect a short between J1
12 in all Slave Supplies.
25 of the Master Supply to J1
10 of all Slave Supplies.
RTN) of the slave unit to J1 terminal 12 (COM) of ma
The following set up connections are optional but are strongly recommended. These
set up and connections will shut down all the parallel power supplies when fault cond
occurs in any one of them.
Switch SW1 position 5 should be in its down position for all power supplies (See Fig.
16 of the Master Supply to J1
15 of the ‘First’ Slave Supply.
16 of the ‘First’ Slave Supply to J1
16 of the ‘Second’ Slave Supply to J1
15 of the ‘Third’ Slave Supply (if any)
16 of the ‘Last’ Slave Supply to J1
In parallel operation, power supplies can be connected in local or remote sensing. R
5 for typical connections of parallel power supplies. The figures show connection of two
units, however the same co
pplies for up to 4 units.
the units as Master or Slave
a) Depress and hold the FINE button for 3 seconds. The Master/Slave configuration will be displayed
on the Current Display. Rotate the CURRENT encoder to obtain the desired mode. Refer to
for the CURRENT display and modes of operation.
Master supply with 1 Slave supply
Master supply with 2 Slave supplies
Master supply with 3 Slave supplies
4: Setting mode of operation
b) When the desired configuration is obtained, depress and release the FINE button or wait approx. 5
. Master and Slave units default operation
a) When a unit is programmed to Slave mode it enters the Remote mode
with Local Lockout. In this
mode, the front panel controls are disabled to prevent accidental setting change (refer to Sec. 7.2.7
parameters will automatically set the following:
*Output voltage to approximate 102% of
*Programmed Current to zero.
