KEPCO KLP Series Developer's Guide, Rev 1 - Manual (Page 13)

KLP-DEV 031113
1-3
1.2.1 INITIALIZATION
When an instrument is first accessed, it is desirable to have it start at a standard state and to
verify that the instrument is the correct one. These functions utilize standard commands which
are common to all power supply class instruments such as *IDN? *CLS and *RST. In the various
drivers, this functional group also includes an open and close functionality.
1.2.2 OUTPUT CONTROL
The power supply class instrument has specific requirements to support voltage and current
settings, output enable and protection. These functions are common to all power supplies in the
power supply class.
1.2.3 MEASUREMENT
The Power supply has the ability to measure the voltage and current at the output and display
this information on the front panel. The measurement system provides the ability to read this
back from the unit.
1.2.4 VIRTUAL MODELS (USER-DEFINED VOLTAGE/CURRENT LIMITS)
The KLP Power Supply can be programmed to user-defined values that can be lower than the
maximum values. For example, although the KLP 36-60-1200 will automatically be limited to
1200 Watts, arbitrary limits, e.g., 40A@30V or 30A@35V can be established. Once the limits
are set, setting values exceeding the limit values will not be accepted. The virtual model settings
are password protected.
1.2.5 SAVE/RECALL (STORAGE OF USER-PROGRAMMED ACTIVE SETTINGS)
The KLP Power Supply contains 40 memory locations that can be used to store active settings.
Values are stored in the nonvolatile memory and are retained when the unit is turned off. The
stored settings can then be recalled and applied as desired. See PAR. A.11 for *SAV (Save) and
A.9 for *RCL (Recall). The unit has the ability to read or set the storage locations without affect-
ing the output of the power supply. These setting are cleared when a calibration is performed.
Recalling a location which has never been loaded with data will cause a -221,”Settings conflict”
error and the output is unchanged.
If a virtual model setting (PAR. 1.2.4) is changed and a stored parameter is outside the range
established by the new virtual model, when that location is recalled, the parameter recalled
appears at the output as the default minimum (zero V or minimum A), but the stored value is
unchanged, and no error message is issued.
1.2.6 LIST (USER-PROGRAMMED SEQUENCES)
Using the LIST functions, up to 100 locations are available for programming the KLP output.
These locations enable the user to program the output using multiple command sequences
which may be initiated by a single command (see PARs B.10 through B.29). The repeatable
user-determined sequences are stored in volatile memory and are retained until reprogrammed,
the power supply is turned off, a calibration is performed, a LIST:CLEar command is received,
or virtual model settings are changed.
Each location defines values for the active channel (either output voltage or output current), a
dwell time duration (between 0.010 and 655.36 seconds) for the programmed settings, and the
state of the internal relay. By programming the output to change in small increments, complex
outputs can be generated.