Tool/software:
Hi team,
This is a question about the accuracy of the protections OCC, OCD1, SCD.
[Background]
The threshold values our projects use are:
- OCC: 20mV (Corresponds to 20A across 1mOhm sense resistor)
- OCD1: -20mV (Corresponds to 20A across 1mOhm sense resistor)
- SCD: -40mV (Corresponds to 20A across 1mOhm sense resistor)
And the red boxes in the following snapshot are what I think I should be looking at to calculate tolerances.
[Question]
If the accuracy of the SCD protection is +-35% of the nominal threshold, is our tolerance supposed to be +-14mV (i.e., 40mV * (35/100)) which corresponds to 14A across the 1mOhm sense resistor?
The same question goes to the OCC/OCD1 protection tolerances. If the magnitude of both thresholds are 20mV, are their tolerances supposed to be +-4mV which correspond to 4A across the 1mOhm sense resistor?
The calculated tolerance values seem too big. Is there something I'm missing?
Thank you,
Kyungjae Lee
