KEPCO BOP-GL 1KW, Руководство оператора

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3-38
BOP-1K-GL 111315
Each point contains a value for the main channel (either voltage or current) and the duration
(dwell) that the value will appear at the output (from 93 microseconds to 0.034 second. The list
system supports from 2950 to 5900 points per waveform, depending on the number of different
dwells in the waveform: For example, if each point in the list has the same duration (a single
dwell time), 5900 points are supported; if no more than 126 different dwell times are specified,
3933 points are supported, and if each point has a different dwell, a maximum of 2950 points
are supported. The number of points supported is determined automatically by the BOP firm-
ware.
The LIST subsystem includes a subsystem for waveform generation. The waveform generation
is invoked with the verb APPLY. When APPLY is added to a list:volt or list:curr command, the
BOP adds a series of points to the list arrays. The BOP can apply these points to approximate a
SINE, Triangle, RAMP (positive or negative) or square waveform or a level. The basic command
requires a type, frequency (or period for a level), a peak-to-peak amplitude (or amplitude for a
level).and offset (offset not needed for a level) The unit will create an appropriate number of
points in both the dwell and output control array to create the waveform centered on zero volts.
An optional offset can be added to the command to cause the BOP to generate a non-centered
waveform. For example, a 5 volt 400 Hertz sine wave may be centered at -3 volts. The list sub-
system allows the user to modify the unit's behavior to generate parts of waveforms and to used
specific dwell times as appropriate. The APPLY subsystem accommodates 126 different seg-
ments in a single waveform provided the generated points fit in the array. See paragraph 3.5.7.2
for an explanation of how a waveform is generated by the BOP.
The following paragraphs provide guidance for using the list commands.
3.7.3.3.1 REQUIRED LIST COMMANDS
There are only five LIST commands, plus either the VOLT:MODE (PAR. B.94) or CURR:MODE
(PAR. B.27) command, that are needed to create and execute a list. Use of these required com-
mands is illustrated in Figure B-6 which shows the creation of sawtooth and triangular wave-
forms. LIST commands are not accepted while a list is running. Send VOLT:MODE FIX (PAR.
B.94) or CURR:MODE FIX (PAR. B.27) to stop the list. A list remains in memory until the power
is cycled or the LIST:CLEar (PAR. B.49) command is processed. Therefore, if the original list is
unchanged, additional commands can be added to the end of the list without resending all the
commands. However, to change parameters of one or more commands within the list, send
LIST:CLEAR and then resend the entire list including the changed parameters. To execute the
list again, either VOLT:MODE LIST (PAR. B.94) or CURR:MODE LIST (PAR. B.27) must be sent
again.
LIST:VOLT (PAR. B.77) or LIST:CURR (PAR. B.54). These commands establish the points
(steps) of a list which program output voltage or current. A list can only be either a voltage list or
a current list, so the points in a list must be made with either LIST:VOLT XXXX or LIST:CURR
XXXX. Mixing of these commands within a list is not allowed.