KEPCO KLP Series User Manual, Rev 4 - Manual (Page 55)

KLP091313
3-13
• Specify the total number of units in the configuration to 2 by rotating the CURRENT con-
trol.
• Specify the unit number to be assigned (1 = master) by rotating the VOLTAGE control.
5. Press DC OUTPUT to accept the displayed settings. The unit briefly flashes WAIT, then
restarts with the new settings; press FUNCTION to abort without changing the settings.
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).
3.2.14.3 OPERATING THE MASTER/SLAVE CONFIGURATION [STANDARD MODELS ONLY]
NOTE: When starting a master/slave pair, the slave unit must be energized before the master
unit.
Once the pair is energized, the master unit searches for the corresponding slave unit. Until com-
munication is established the status displays of the two units 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. 3.2.14.2, step 4) 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.
• If analog control is used, only the master is configured for analog control (the slave is
controlled digitally by the master).
• If Remote Inhibit is used, it should only be connected to the master.
• If E241 (hardware error) is showing in the status display, check the master and/or slave
setup. If necessary, use FUNCTION switch to enter the M/S menu to change the config-
uration as described above.
• If there is no communication between units for approximately 10 seconds, all units will
turn off their output and the status display will flash E241 (hardware error), then xOFy
where x = unit number and y = total number of units, and finally the serial/parallel config-
uration setting SERI or PARA.
• Fault recovery mode (PAR. 3.2.17.3.2) for all faults is fixed as PROTected mode.