AMETEK SLH Series RevC - Manual (Page 49)

Sorensen SLH-Series DC High Power Electronic Load Operation
3.7
ANALOG PROGRAMMING INPUT
The Electronic Load has an analog programming BNC input on the rear panel. CC and CP
modes can be programmed with a 0 to 10V analog signal controlling 0 to full scale current or
power. The input may be an arbitrary waveform or arbitrary waveform + dc up to 20kHz
bandwidth. The analog programming signal can act alone or it can be summed with the
programmed value via GPIB, RS-232, or the front panel. FigureFigure 3-8 shows the analog
programming signal (4 Vac, 500Hz) is summed with the 24A programmed setting in CC mode.
Example : SLH-60-120-1800. The 0 to 10V Analog signal can program the 0 to full-scale
input range in the CC mode (0 to 6A range when load current setting is less than 6A, or 0 to
60A range when load current setting is higher than 6A) or in the CP mode (0 to 300W). To
operate only in the high range (Range 2).
Figure 3-8 Analog Programming Load Current in CC Mode Operation
3.8
LOAD COARSE/FINE INCREASE/DECREASE
ADJUSTMENT KEY
The load current step change or resolution is shown in Table 3-2 for each load module.
After press the one of four load current adjustment keys for more than 1 second, the operating
mode of the key become increase or decrease the load current resolution repeat automatically,
and the load current will stop the load current change until releasing the press key or the load
current setting is reaching the minimum or maximum setting.
M540074-01 Rev C 3-19