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ErrorLib — Industrial Fault Code Library

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1BE0H

Main Shaft Servo Input Axis Conflicts with Output Axis

Mitsubishi Electric · MELSEC iQ-R Motion Controller

What does 1BE0H mean?

This minor error occurs when the servo input axis number (1 to 64) specified in [Pr.401] for the main shaft is set to the same value as an output axis. This conflict prevents the initiation of synchronous control, as the system cannot distinguish between input and output functions for the same axis identifier.

Common Causes

  • The servo input axis number (1 to 64) set in "[Pr.401] Sub input axis No." duplicates an existing output axis number in the system configuration.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the value of "[Pr.401] Sub input axis No." for the main shaft, ensuring it is within the valid range (1-64 for servo input axis).

  2. 2

    Check the servo network settings to identify all numbers currently assigned to output axes.

  3. 3

    Modify the setting of "[Pr.401] Sub input axis No." to a unique axis number that does not correspond to any configured output axis.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

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Source: Mitsubishi Electric MELSEC iQ-R Motion Controller
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