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Note If adjusting the Servomotor current detection offset, first try performing automatic adjustment

(Fn00E). Only attempt manual adjustment if the torque ripple is still large after performing auto-

matic adjustment.

System Check Mode

Servomotor current

detection offset manual

adjustment

Phase selection (Cu1

= U phase)

U-phase (CU1)

offset adjustment

Phase selection (Cu2

= V phase)

V-phase (CU2)

offset adjustment

1 s min.

1 s max. 1 s max.

1 s min.

Flowchart for Servomotor Current Detection Offset Manual Adjustment

Adjust phase-U offset 10° in the best direction for torque ripple

Torque ripple does not improve even if adjusted in both + and – directions?

Characteristics OK?

Rotate Servomotor at approx. 100 r/min. (with no load).

End

Adjust phase-V offset 10° in the best direction for torque ripple.

Adjust phase-U offset 1° in the best direction for torque ripple.

Adjust phase-V offset 1° in the best direction for torque ripple.

Note 1. Adjust the offset while monitoring the torque command monitor (current monitor)’s waveform.

Operation Chapter 4

Omron OMNUC R88D-WT15HF User Manual

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