Mazak Alarm Code 1139 - Battery Alarm #140

Mazak CNC Minor Memory

Model: Mazak MAZATROL | Code: 1139

Applicable Systems
MAZATROL MATRIX MAZATROL Smooth INTEGREX

Symptoms

The Mazak CNC control displays a battery alarm. The backup battery for memory retention is low.

Possible Causes

  • Memory backup battery voltage low
  • Battery not installed
  • Battery contact corrosion
  • Battery expired
  • Battery monitoring circuit fault
  • Wiring harness or connector fault

Troubleshooting Steps

  1. Step 1: Record the Mazak alarm code 1139 and note the machine operating state
    Alarm code and context are documented
  2. Step 2: Access the alarm detail screen on the Mazatrol control for additional information
    Detailed alarm information is retrieved
  3. Step 3: Inspect the Memory subsystem for visible faults, damage, or abnormal conditions
    No visible damage or abnormalities found
  4. Step 4: Check parameters, programs, and offsets per the Mazak service manual
    Values match expected settings or discrepancies are identified
  5. Step 5: Reset the alarm per the Mazak procedure and test machine operation
    Alarm clears and machine operates normally, or alarm returns

How to Reset

To reset Mazak alarm 1139: 1) Resolve the underlying fault per the troubleshooting steps. 2) Press the RESET key on the Mazatrol control panel. 3) If the alarm persists, press EMERGENCY STOP, release it, then press RESET. 4) If still present, power cycle the machine (main breaker off, wait 30 seconds, on). 5) Contact Mazak service if the alarm persists after reboot.

Frequently Asked Questions

  • Q: What does Mazak alarm 1139 mean?

    Alarm 1139 indicates: Battery Alarm #140. This is a Mazak MAZATROL control system alarm related to Memory.

  • Q: How do I clear Mazak alarm 1139?

    Fix the root cause, press RESET. If persistent, cycle E-STOP and RESET. If still present, power cycle the machine. Contact Mazak service if it returns.

  • Q: Is Mazak alarm 1139 critical?

    Severity: Minor. Monitor and service at next opportunity.

Related Mazak Fault Codes

Source: Mazak MAZATROL Alarm List / Mazak Service Manual

Category: CNC