1A31H

Command Generation Axis Positioning Address Out of Range

Mitsubishi Electric · MELSEC iQ-R Motion Controller

What does 1A31H mean?

This minor error indicates that the indirect setting for the positioning address for the command generation axis is outside the acceptable range. The valid range is 0 to (value of [Pr.346] Command generation axis length per cycle - 1). If the address is outside this range, the positioning control will not initiate.

Common Causes

  • Positioning address for indirect setting is configured outside the valid range of 0 to ([Pr.346] Command generation axis length per cycle - 1).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the value of parameter [Pr.346] Command generation axis length per cycle.

  2. 2

    Adjust the indirect positioning address to be within the range of 0 to ([Pr.346] Command generation axis length per cycle - 1).

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Verified technical data. Last updated: March 2026

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Source: Mitsubishi Electric MELSEC iQ-R Motion Controller