Mori Seiki MSC-516/518 Alarm 4001

Mori Seiki CNC Moderate Programming

Model: MSC-516/518 | Code: 4001

Applicable Systems
MSC-516 MSC-518 MSD-516 MSD-518

Symptoms

Alarm 4001: ILLEGAL COMMAND - Invalid program command encountered. The CNC system displays this alarm on the operator panel.

Possible Causes

  • Programming syntax error in the NC program
  • Invalid or unsupported command used

Troubleshooting Steps

  1. Step 1: Read alarm 4001 on the CNC display and note the full alarm message
    Alarm code and description displayed for diagnosis
  2. Step 2: Check the machine status and identify any obvious mechanical, electrical, or pneumatic issues
    Visible faults identified or confirmed as intermittent
  3. Step 3: Consult the manufacturer manual for alarm-specific troubleshooting procedures
    Root cause identified per manufacturer guidelines
  4. Step 4: Apply the recommended fix and reset the alarm
    Alarm cleared and machine resumed normal operation

How to Reset

To reset alarm 4001: 1) Address the root cause. 2) Press the RESET key on the CNC panel. 3) If the alarm persists, cycle power to the control. Caution: Repeated alarms without fixing the cause may cause damage.

Frequently Asked Questions

  • Q: What does alarm 4001 mean?

    Alarm 4001 indicates: ILLEGAL COMMAND - Invalid program command encountered. Follow the troubleshooting steps to resolve the issue.

Related Mori Seiki Fault Codes

Source: HelmanCNC.com - https://www.helmancnc.com/mori-seiki-g-codes-and-m-codes/

Category: CNC