PS1598

EGB AUTO PHASE PARAMETER SETTING ERROR

Fanuc · Series 0i-MODEL F Plus Parameter

What does PS1598 mean?

This alarm indicates an error in the parameter settings for Electronic Gear Box (EGB) automatic phase synchronization. Specifically, it is triggered when parameter 7778, which defines the acceleration for the workpiece axis in EGB, is set to 0 and a G81 command is specified in the NC program.

Repair Steps

  1. 1

    Verify that parameter 7778 (acceleration for acceleration/deceleration for the workpiece axis in EGB) is set to a value greater than 0. Setting this parameter to 0 will cause the alarm when G81 is commanded.

  2. 2

    If the variable acceleration function for automatic phase synchronization is used, ensure that parameter 5694#2 (PAV) is correctly configured.

  3. 3

    Review the G81 command within the NC program and confirm that all associated EGB parameters, including No. 7778, are set to valid, non-zero operational values.

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Verified technical data. Last updated: March 2026
Source: FANUC Series 0i-MODEL F Plus Parameter
Fanuc Error PS1598: EGB AUTO PHASE PARAMETER SETTING ERROR — Troubleshooting Guide | ErrorLib