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Setting PLD Parameters
SD State – This enables or disables the PLD simulation. Enable it to include PLD in the list step.
SD Continue – This selects whether to create the PLD continuously or not. If SD State is enabled,
this should be set to Yes so that it will simulate the PLD.
Note: The programmed PLD will output continuously in intervals of 100 ms. If the step dwell
time reaches before the 100 ms interval, the power supply will output the next step
immediately and skip the step’s PLD simulation.
Note: After the initial 50 ms delay from the start of a list program, the power supply will
output 100 ms (or longer because after 100 ms, the last cycle must be completed) of the first
step before the first PLD occurs. If the first step’s dwell time is set to the minimum of 0.1 s,
then 200 ms of the first step will output instead before the first PLD occurs. Thereafter, the
PLD will output in 100 ms intervals. See the graph below:
Figure 25 – Initial Start of a List
SD Voltage - This parameter defines the voltage level of the PLD.
SD Site – This parameter defines the time location (with reference to the beginning of a period
of the output) in which to output the PLD. Figure 25 above shows the output of the first step of
a list with SD Site set to 0.0 ms.
SD Time – This parameter defines the duration of the PLD in time.
Note: If the SD Time is greater than the Step Dwell Time, the PLD will carry over to the next
step(s) of the list until either the SD Time is reached or the end of the last step in reached,
whichever comes first.
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