I am conducting an IEC61000-4-29 compliance test (DC voltage variation test) using PCR-LE series with SD009-PCR-LE/WE (Power Line Disturbance Immunity Testing Software). Is it possible to conduct the test on PCR-LE series alone without a PC?

Yes, SD009-PCR-LE is designed to load a program as a sequence into PCR-LE series. Once the test is conducted via SD009-PCR-LE, the test pattern is loaded into PCR-LE series, which allows the same test to be performed independently of a PC.