Haas CNC Error Code 157

Haas CNC Critical System

Model: CNC | Code: 157

Applicable Systems
Haas CNC Mill (VF/VM Series)

Symptoms

MOCON watchdog failure detected.

Possible Causes

  • Motion controller watchdog timer expired.
  • MOCON board hardware or firmware fault.

Troubleshooting Steps

  1. Step 1: Check the MOCON board status.
    Watchdog cause identified.
  2. Step 2: Power cycle or replace the MOCON board.
    Watchdog alarm cleared after fix.

How to Reset

Fix the MOCON watchdog and reset to clear the alarm.

Source: Haas Alarm Codes, Haas Automation

Category: CNC