B&K Precision 1620A-1623A - Manual - Manual (Page 11)

11
6.3. PARALLEL OPERATION (MASTER /
SLAVE CONTROL)
Two or more units of the same model can be hooked up in
parallel to give an increase in output current capacity. The total
output current capacity will be the sum of the output currents of
the individual units. In this mode of operation, one supply will
act as the master and all settings are from the master unit
• Note: When connecting the supplies in parallel, be sure that
all the power supplies are turned OFF.
•
HOOK-UP PROCEDURES
1. Switch OFF the power of all units.
2. Switch the master/slave switch, FIG.6.3, on all the slave
units from “MASTER” to “SLAVE” position.
3. Hook-up the IN/OUT terminals for MASTER/SLAVE
operation as shown in FIG.6.3.
4. Connect the output terminals of each of the units to the
load as shown in FIG.6.4. For proper performance, use
all cables of same length and thickness.
5. Set the voltage and current adjustment knobs of all the
slave units to the maximum position.
6. Switch “ON” the MASTER unit and SLAVE units.
The output voltage and current then can be
controlled to the desired value via the adjustment
knobs on the MASTER unit.
In the case of output goes to “0” ampere in the
parallel operation mode, output voltage can no
longer be controlled by the master machine.
Be sure to keep a minimum current flowing that is at
least several percent of the rated current at all time.
•
CONNECTION OF TERMINAL ON REAR
PANEL
While pressing on the slit portion of the terminal with a
small screw driver, insert the connecting cable into the
round hole. When insertion is completed, release the
screw driver. (FIG.6.5)