KEPCO KLP Series (older -1200 models) Operator Manual - Manual (Page 49)

KLP073008
3-9
3.2.10.2 CONFIGURE POWER SUPPLY AS SLAVE
1. Turn power on. If the unit comes up in setpoint mode (see PAR. 3.2.4), tap either the CUR-
RENT or VOLTAGE control to take the unit out of setpoint mode (status display goes from
SET to blank).
2. Using a thin tool (e.g., a paper clip), press the FUNCTION switch repeatedly until the status
display reads M/S.
3. Tap the DC OUTPUT switch once.
• The status display reads either SERI (series) or PARA (parallel).
• The DC VOLTS display shows the number assigned to the unit (1 = master, 2 or above
= slave).
• The DC AMPERES display shows the maximum number of units in the configuration.
• The factory default is standalone operation (DC VOLTS and DC AMPERES show 1).
4. Specify either SERI (series configuration for higher voltage) or PARA (parallel configuration
for higher current) to be the same as the master by holding in either the VOLTAGE or CUR-
RENT control and rotate the control. Both connected units must be set the same, either
SERI or PARA.
5. Specify the total number of units in the configuration to 2 by rotating the CURRENT control.
6. Specify the unit number to be assigned ( 2 = slave) by rotating the VOLTAGE control.
7. Press DC OUTPUT to accept the displayed settings, or FUNCTION to abort and proceed to
the next function.
NOTE: Until both units are configured properly, the displays will cycle as follows: status display
will flash E241 (hardware error), then DC VOLTS, status display and DC AMPERES
flash x OF y where x = unit number and y = total number of units, the status display
flashes the type of connection SERI (series) or PARA (parallel).
3.2.10.3 OPERATING THE MASTER/SLAVE CONFIGURATION
Once the master is configured, it searches for the slave specified. Until the slave is set up prop-
erly, the master status display will cycle as follows: status display will flash E241 (hardware
error), then DC VOLTS, status display and DC AMPERES flash x OF y where x = unit number
and y = total number of units, the status display flashes the type of connection SERI (series) or
PARA (parallel). When the slave is found, the status display of the slave reads SLVE and the DC
VOLTS and DC AMPERES displays on the slave go blank. For the master/slave combination to
work properly the number of slave units specified in the master (PAR. 3.2.10.1, step 5) must be
found.
When the slave has been found, the master proceeds with the normal turn-on sequence and the
unit proceeds to SET mode. The master front panel readouts show the total values for set point,
voltage and current readback, virtual model (the virtual model and protection settings of the
slave are automatically programmed to be the same as the master) and protection settings for
the master/slave configuration. All controls on the slave are disabled. The parallel or series
combination is controlled from the master using either the front panel, SCPI commands, or ana-
log control.