KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 1.232 (Unit Rev 0 or 1) - Manual (Page 38)

3-4
SERIES EL 063010
3.7 VIEWING MODEL INFORMATION
When the Mode is OFF (none of the mode LEDs are illuminated), momentarily depressing the
LOAD pushbutton (illumination changes to blinking green) allows model information to be
viewed. Rotating CONTROL sequences the VOLTS, AMPS and KW displays through Model
Information (displayed as AMPS, VOLTS and KW in the respective display location) and Serial
Number.
3.8 OPERATION OF MASTER/SLAVE CONFIGURATIONS.
3.8.1 POWER UP
When turning on Loads connected as Master/Slave, turn on the Slave Load(s) first, then after 10
- 20 seconds, turn on the Master Load.
• The LOAD button on each Slave Load turns green once the Load completes diagnostic
tests.
• As the Master Load interrogates the Slave Load(s) via the Master-Slave communication
bus, the VOLTS display on the Slave(s) changes to SLAU (Slave).
• The LOAD button on the Master Load turns green once the Master Load 1) completes its
diagnostic routine, 2) interrogates the Slave(s) for Master-Slave connection eligibility
and ratings, 3) establishes the overall Master-Slave Load configuration
3.8.2 LOCAL (FRONT PANEL) OPERATION
The Load can be operated from the Master front panel as described in the previous paragraphs
for a single unit. Only the Master Load front panel is active
3.8.3 REMOTE (COMPUTER) OPERATION
If a computer is connected to the Master Load of a master/slave configuration in terminal display
mode, the information shown in Figure 3-1 is displayed at startup (boot).The Master-Slave con-
figuration responds to the SCPI command set described in the User's Manual
3.8.4 INDICATIONS DURING MASTER/SLAVE OPERATION
The Master Load displays:
• AMPS: Total Current drawn by the Master/Slave configuration
• VOLTS: Voltage applied to each of the Loads
• KW: Total power in kW drawn by the Master/Slave configuration
Slave Load(s) display:
• AMPS: Current drawn by the individual Slave
• VOLTS: reads SLAU showing unit is a slave connected to Master.
• KW: Power in kW drawn by the individual Slave.