Analog Programming Input; Fig 2-10 Diagram Of Analog Programming Input; Fig 2-11 Analog Programming Example - Prodigit 3302F Mainframe Operation Manual

2.16 Analog Programming Input

The 3302F mainframe has an analogue programming input. This feature allows an external
waveform to be tracked as long as it is within the load's dynamic capabilities. The analogue
programming input is configured as a BNC socket. It will accept a 0-10V signal. This signal
is proportional to the load module's maximum current range. Please note that the analogue
programming input will only operate with single channel load modules. It cannot be used for
dual channel load modules from the 3330F series and 33401F/G.
The analogue programming input operates in CC or CP modes only. The Load Module
will attempt to load proportionally according to the signal and the load module's maximum
current or power range.
For example: 3311F: Imax = 60A and Pmax = 300W
So in CC mode if analogue programming input is 5V = 30A load setting
Or in CP mode if analogue programming input is 1V = 30W load setting
The analog programming signal can act alone or it can be summed with the programmed
value set via the front panel or the optional computer interface (GPIB, RS232, USB, or
LAN) or the front panel.
Example:
Fig 2-11 shows the result of an analog programming signal at 4Vac, 500Hz when it is
summed with a 24A programmed setting in CC mode of 3311F Load module.

Fig 2-10 Diagram of analog programming input

LOAD CURRENT
36A
24A
12A
2mS

Fig 2-11 Analog Programming Example

3302F Mainframe Operation Manual 9
ANALOG V
6V
4V
2V
T