Applicable Systems
Haas CNC Mill (VF/VM Series)
Symptoms
A axis Z channel signal lost.
Possible Causes
- A axis encoder Z channel feedback is missing.
- Encoder cable disconnected or encoder failure.
Troubleshooting Steps
- Step 1: Check the A axis encoder cable connection.
Cable issue identified. - Step 2: Replace the encoder or cable.
Z channel signal restored.
How to Reset
Fix the A axis Z channel and reset to clear the alarm.
Source: Haas Alarm Codes, Haas Automation
Category: CNC