×

Search Results

Web Pages

Images

    • <
    • 1
    • >
  • machines
    • Haas Vertical Mills
      Vertical Mills
      • Vertical Mills
      • VF Series
      • Universal Machines
      • VR Series
      • Pallet-Changing VMCs
      • Mini Mills
      • Mold Machines
      • Drill/ Tap/ Mill Series
      • Toolroom Mills
      • Compact Mills
      • Gantry Series
      • Vertical Mill/Turn
      • Extra-Large VMC
      • Double-Column Mills
      • Desktop Mill
      • Mill Auto Parts Loader
    • Product Image
      Multi-Axis Solutions
      • Multi-Axis Solutions
      • Y-Axis Lathes
      • 5-Axis Mills
    • Haas Lathes
      Lathes
      • Lathes
      • ST Series
      • Dual-Spindle
      • Toolroom Lathes
      • Chucker Lathe
      • Haas Bar Feeder V2
      • Lathe Auto Parts Loader
    • Haas Horizontal Mills
      Horizontal Mills
      • Horizontal Mills
      • 50-Taper
      • 40-Taper
    • Haas Rotaries & Indexers
      Rotaries & Indexers
      • Rotaries & Indexers
      • Rotary_Videos
      • Rotary Tables
      • Indexers
      • 5-Axis Rotaries
      • Extra-Large Rotaries
    • Product Image
      Automation Systems
      • Automation Systems
      • Robot Systems
      • Automatic Parts Loaders
      • Pallet-Pool Systems
      • Haas Bar Feeder
      • Models
    • QUICK LINKS Special Series  Special Series 
      HAAS CAREERS HAAS CAREERS BUILD & PRICE BUILD & PRICE PRICE LIST PRICE LIST WHAT’S NEW WHAT’S NEW YOUR FIRST CNC YOUR FIRST CNC HAAS SIX PACK HAAS SIX PACK
      SHOPPING TOOLS
      • Build & Price a Haas
      • Price List
      • Available Inventory
      • CNCA Financing
      WANT TO TALK TO SOMEONE?

      A Haas Factory Outlet (HFO) can answer your questions, and walk you through your best options.

      CONTACT YOUR DISTRIBUTOR >
  • Options
    • Product Image
      Spindles
      • Spindles
    • Product Image
      Tool Changers
      • Tool Changers
    • Product Image
      4th- | 5th-Axis
      • 4th- | 5th-Axis
    • Product Image
      Turrets & Live Tooling
      • Turrets & Live Tooling
    • Product Image
      Probing
      • Probing
    • Haas Chip & Coolant Management
      Chip & Coolant Management
      • Chip & Coolant Management
    • The Haas Control
      The Haas Control
      • The Haas Control
    • Product Image
      Product Options
      • Product Options
    • Product Image
      Tooling & Fixturing
      • Tooling & Fixturing
    • Product Image
      Workholding
      • Workholding
    • Product Image
      5-Axis Solutions
      • 5-Axis Solutions
      • 5 Easy Steps to 5-Axis
    • Product Image
      Automation
      • Automation
    • QUICK LINKS Special Series  Special Series 
      HAAS CAREERS HAAS CAREERS BUILD & PRICE BUILD & PRICE PRICE LIST PRICE LIST WHAT’S NEW WHAT’S NEW YOUR FIRST CNC YOUR FIRST CNC HAAS SIX PACK HAAS SIX PACK
      SHOPPING TOOLS
      • Build & Price a Haas
      • Price List
      • Available Inventory
      • CNCA Financing
      WANT TO TALK TO SOMEONE?

      A Haas Factory Outlet (HFO) can answer your questions, and walk you through your best options.

      CONTACT YOUR DISTRIBUTOR >
  • Why Haas
      Discover the Haas Difference
      Why Haas MyHaas Education Community Industry 4.0 Haas Certification Customer Testimonials
  • Service
      Welcome to Haas Service
      SERVICE HOME Operator’s Manuals How-To Procedures Troubleshooting Guides Preventive Maintenance Haas Parts Haas Tooling Videos
  • Videos
  • Haas Tooling
      Haas Tooling Mill Toolholding Mill Workholding Milling Lathe Tooling Lathe Toolholding Lathe Workholding ER Collets & Chucks Holemaking Threading Tool Management Tooling Accessories Package Kits Measuring & Inspection Apparel & Accessories
      HAAS TOOLING QUICK LINKS
      NEW PRODUCTS NEW PRODUCTS
      MOST POPULAR MOST POPULAR
      OPEN TERMS OPEN TERMS
      FINANCING FINANCING
      FAQs FAQs
      KITS CREATED FOR YOU KITS CREATED FOR YOU
  • Haas Service Parts
      Haas Service Parts Automatic Pallet Changer Automatic Tool Changer Chip Management Coolant Counterbalance Electrical Cabinet Enclosure Field Install Options Hydraulics Lubrication Maintenance Pendant Probing Rotary Spindle Tailstock
  • Contact Us

My Cart
MyHaas Welcome,
!
Haas Tooling Guest Order History MyHaas/HaasConnect Sign In Register Haas Tooling My Account Order History Return History MyHaas/HaasConnect Sign Out Welcome, My Machines Latest Activity My Quotes My Account My Users Sign Out
Find A Dealer
  1. Select Language
    1. English
    2. Deutsch
    3. Español
    4. Français
    5. Italiano
    6. Português
    7. Český
    8. Dansk
    9. Nederlands
    10. Magyar
    11. Polski
    12. Svenska
    13. Русский
    14. Türkçe
    15. 中文
    16. Suomi
    17. Norsk
    18. الإنجليزية
    19. български
    20. Hrvatski
    21. Ελληνικά
    22. Română
    23. Slovenský
    24. Slovenščina
    25. 한국어
    26. 日本語
Search
×

Search Results

Web Pages

Images

    • <
    • 1
    • >

Proximity Sensor - Troubleshooting Guide

Service Home Proximity Sensor - Troubleshooting Guide
Recently Updated Last updated: 03/30/2021

Proximity Sensor - Troubleshooting Guide


Proximity Sensor - Troubleshooting Guide

Jump to Section Back to Top

Introduction

The image shows the various types of proximity sensors used on Haas machines.

Symptom Table

Symptom Possible Cause Corrective Action

Positioning error or timeout alarms.

The diagnostic bit fluctuates while the monitored components are idle.

Noise or electrical interference from high-power cables. Re-route the cable away from high power sources. Apply a ferrite bead to the sensor cables at the I/O board.
There is a poor connection, or a signal interference from contamination. Clean, reseat connectors, and correct the cause of contamination.
The diagnostic bit does not change state. There is metal particles on the face of the sensor. Metal particles will not let the switch change state. Clean metal particles from the face of the proximity sensor.
The sense gap between the sensor face and the trip flag is not correct. Align the trip flag or sensor, make sure the gap between the face of the sensor and the trip flag does not exceed 0.126 inces.
The cables or the I/O PCB is at fault. Troubleshoot the cables or the I/O PCB.
Alarm 145-147 AXIS LIMIT SWITCH alarms. There is metal particles on the face of the proximity sensor. Metal particles will not allow the sensor to change state. Clean metal particles from the face of the proximity sensor.
The proximity sensor connector has a loose connection. Check the proximity M12 connector make sure the connection is tight.
The cable from the control to the proximity sensor has an open connection. Check the proximity sensor and extenstion cables for damage.
The sense gap between the sensor face and the trip flag is not correct. Align the trip flag or sensor, make sure the gap between the face of the sensor and the trip flag does not exceed 0.126 inces.
Alarm 103-105 AXIS SERVO ERROR TOO LARGE alarms. There is metal particles on the face of the proximity sensor. Metal particles will not allow the sensor to change state. This will cause the axis to home in the opposite direction, causing the axis to hit the hard stop. Clean metal particles from the face of the proximity sensor.
Alarm 165-167 AXIS ZERO RETURN MARGIN IS TOO SMALL False sensor trip due to chip or home sensor problem, or the axis grid offset parameter is not set properly Check for metal chips around the sensor or trip flag. Check the sensor for damaged cables. Set the axis grid offset parameter.

Signal Noise / Signal Interference

Make sure that the proximity sensor cable is not damaged, and that it is separated from high-power spindle/axis/pump cables.

Make sure that the connectors and pins for the proximity sensors are not contaminated. Make sure the pins have not backed out of the connector.

Check for contamination on the proximity sensor. Contamination on the face of the proximity sensor can create a false signal. Fix the cause of the contamination.

Put a screw in front of the face of the sensor to test its operation. If the proximity sensor LED turns on and off, and the diagnostic bit changes status, then the sensor is working correctly. Align the trip flag so that it triggers the proximity sensor.

Cable Damage

Check the proximity sensor and extenstion cables for damage.

If there is no damage to the cables, refer to:

  • Next Generation Control - I/O PCB - Troubleshooting Guide
  • Classic Haas Control - I/O PCB - Troubleshooting Guide

Malfunctioning Proximity Sensor

For 12 VDC proximity sensors, test the voltage at the proximity sensor. The 3-wire 5 VDC sensor receives voltage from the processor PCB. It is the same voltage that is sent to the axis encoder. If the axis encoder works correctly, and there are no encoder alarms, the sensor receives the correct voltage.

Always check for voltage from the back of the connector with needle-tip probes. If there is voltage present at the proximity sensor, but it will not change status, the sensor is at fault.

N.O. 2 Wire 12V Proximity Sensor: (Black lead to ground and red lead to the brown wire)

Proximity Sensor State LED Voltage (VDC) Diagnostic Bit
Without Activation OFF 9-12 1
Activated ON 2-3 0

N.C. 2 Wire 12V Proximity Sensor: (Black lead to ground and red lead to the brown wire)

Proximity Sensor State LED Voltage (VDC) Diagnostic Bit
Without Activation ON 2-3 0
Activated OFF 9-12 1

N.O. 3 Wire 12V Proximity Sensor: (Black lead to ground and red lead to the black wire)

Proximity Sensor State LED Voltage (VDC) Diagnostic Bit
Without Activation OFF 9-12 1
Activated ON 0-2 0

N.C. 3 Wire 5V Proximity Sensor - Home Switches: (Black lead to ground and red lead to the black wire)

Proximity Sensor State LED Voltage (VDC) Diagnostic Bit
Without Activation OFF 0-2 0
Activated ON 3-5 1
FIND DISTRIBUTOR
Feedback
Haas Logo

美元价格不包括关税、报关费用、保险费、增值税及运费。
USD prices DO NOT include customs duty, customs fees, insurance, VAT, or freight.

人民币价格包含关税、报关费用、货运保险和增值税, 但不包括运费。
CNY prices include customs duty, customs fees, insurance, and VAT. DOES NOT include freight.

Haas Delivered Price

This price includes shipping cost, export and import duties, insurance, and any other expenses incurred during shipping to a location in France agreed with you as a buyer. No other mandatory costs can be added to the delivery of a Haas CNC Product.

KEEP UP WITH THE LATEST HAAS TIPS AND TECHNOLOGY...

Sign up now!   

HAAS TOOLING ACCEPTS THE FOLLOWING:

  • Service & Support
  • Owners
  • Request Service
  • Operator Manuals
  • Haas Parts
  • Rotary Repair Request
  • Pre-Install Guides
  • Shopping Tools
  • Build & Price a New Haas
  • Available Inventory
  • The Haas Price List
  • CNCA Financing
  • About Haas
  • Careers
  • Certifications & Safety
  • Contact Us
  • History
  • Terms & Conditions
  • Haas Tooling Terms & Conditions
  • Privacy
  • Warranty
  • Haas Community
  • Haas Certification Program
  • Haas Motorsports
  • Gene Haas Foundation
  • Haas Technical Education Community
  • Events
  • Join the Conversation
  • Facebook
  • Twitter
  • Flickr
  • YouTube
  • LinkedIn
  • Instagram
  • TikTok
© 2022 Haas Automation, Inc – CNC Machine Tools

2800 Sturgis Rd., Oxnard, CA 93030 / Toll Free: 800-331-6746
Phone: 805-278-1800 / Fax: 805-278-2255

Cookie Notice

We use cookies to improve your user experience. Our Cookie Notice describes which cookies we use, why we use them, and how you can find more information about them. Please confirm you consent to us using analytics cookies. If you do not consent, you may still use our website with a reduced user experience.

Manage Settings

Cookie Notice

We use cookies to improve your user experience. Our Cookie Notice describes which cookies we use, why we use them, and how you can find more information about them. Please confirm you consent to us using analytics cookies. If you do not consent, you may still use our website with a reduced user experience.

Functional Cookies

Analytics Cookies