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B&K Precision MDL Series - Programming Manual User Manual

Page 90

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90

All models have a programmable current function. The command to program the current is:

CURRent

where is the input current in amps.

Overcurrent Protection
The electronic load can also be programmed to turn off its input if the current protection level is

reached.

As explained in Section 3.3 Subsystem Commands, this protection feature is implemented by the

following command:

CURRent:PROTection:STATe ON | OFF

NOTE: Use CURRent:PROTection:DELay to prevent momentary current limit conditions caused by

programmed input changes from tripping the overcurrent protection.

Generating Triggers
You can generate a single trigger by sending the following command over the GPIB:

TRIGger:IMMediate

Note that this command will always generate a trigger. Use the TRIGger:SOURce command to select

other trigger sources such as the mainframe's external trigger input.

Programming Transients
Transient operation is used to synchronize input changes with internal or external trigger signals, and

simulate loading conditions with precise control of timing, duration, and slew. The following transient

modes can be generated:

Continuous Generates a repetitive pulse stream that toggles between two load levels.

Pulse

Generates a load change that returns to its original state after some time period.

Toggled

Generates a repetitive pulse stream that toggles between two load levels. Similar to

Continuous mode except that the transient points are controlled by explicit triggers

instead of an internal transient generator.

NOTE: Before turning on transient operation, set the desired mode of operation as well as all of the

parameters associated with transient operation. At *RST all transient functions are set to OFF.