External Programming Input

CCand CV modes can be programmed with a signal (ac or dc) connected to the Ext Prog input. A 0-to-10V external signal corresponds to the 0-to-full scale input range in CV mode or in CC mode. The external programming signal is combined with the value programmed via the GPIB or the front panel, so that, for example, a programmed value of one-half full scale and a 5-volt external programming input would produce a full-scale value at the input.

Figure 2-10 shows the input waveform that would result from the following setup:

CCMode 60 A Range

20 A Input (programmed via GPIB or front panel)

± 1 V (2 V pk-pk) 1 kHz external programming signal

The external programming signal (+ and - 1 volt) corresponds to + and - 6 amps at the input (1 volt external programming input = 1/10 full scale). Therefore, the input varies ± 6 A at the 20 A level.

Fault

The Fault signal becomes active if an overvoltage or reverse voltage occurs at the input, as described in the Protection Features paragraphs.

Figure 2-10. External Programming Example

Port On/Off

Port is a general purpose output port that can be used to control an external device such as a relay for power supply test purposes. The output is toggled on and off via the GPIB (PORT0 ON OFF command). It cannot be controlled from the front panel.

The Port output signal is a TTL compatible signal that becomes active (high level) when the PORT command is programmed ON and becomes inactive low level) when the PORT command is programmed OFF.

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Agilent Technologies 6051A, 6050A manual External Programming Input, Fault

6051A, 6050A specifications

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