Kikusui PFX2000 Series, Руководство по эксплуатации

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PFX2000 Appendix A-3
Fig. A-3 Correction Converter
Fig. A-4 is an example of the auto fi ne operation when the current is set to 3.000 0
A.
Fig. A-4 Auto Fine Operation Example
Operation
• The auto fi ne function is active only during constant current (CC) operation.
During CC-CV operation, auto fi ne operates only during the CC period. It does
not operate during pulse charge/discharge operation.
• The range of correction is limited to ± 30 digits. For example, if the difference
between the preset value and the measured value is 40 digits, correction is per-
formed up to 30 digits. In this case, the difference between the preset value and the
measured value is 10 digits. This limitation makes identi fi cation of abnormality eas-
ier when the accuracy of the settings is off by an extreme amount for some reason.
• The preset value and the measured value never are completely the same. For
performance reasons, the operation stops after correcting the values within
approximately 3 digits.
• Correction is performed at 1-s cycle. It may take from several seconds to several
tens of seconds for the correction to complete.
• For the procedure in turning ON/OFF the auto fi ne function, see section 4.3.1,
“Module” in the BPChecker2000 User's Manual .
16 bit D/A converter
8 bit D/A converter
CC reference signal
Correction converter
Preset constant current value: 3.0000 A
Line corresponding to
the measured value of
3.0000 A
16-bit D/A converter
setting
8-bit D/A converter setting
(Correction operation)
Current