Proximity Sensor - Troubleshooting Guide _ Customer Resource Center 325t3u
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9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Proximity Sensor - Troubleshooting Guide Print a PDF (/printpdf/reference-docs/proximity-sensor-troubleshooting-guide) The image shows the various types of proximity sensors used on Haas machines.
Symptom
Possible Cause
Corrective Action
Positioning error or timeout alarms.
Noise or electrical interference from high power cables.
Reroute the cable away from high power sources.
There is a poor connection, or a signal interference from contamination.
Clean, reseat connectors, and correct the cause of contamination.
There is a poor connection, or a signal interference from contamination.
Clean, reseat connectors, and correct cause of contamination.
The trip flag or the sensor is damaged or incorrectly aligned.
Align the trip flag or sensor.
The cables or the I/O PCB is at fault.
Troubleshoot the cables or the I/O PCB.
The proximity sensor is at fault.
Check the communication between the sensor and control.
The diagnostic bit fluctuates while the monitored components are idle.
The diagnostic bit does not change state.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
1/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Signal Noise / Signal Interference Make sure that the proximity sensor cable is not damaged, and that it is separated from highpower 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, go to diy.haascnc.com (http://diy.haascnc.com) to troubleshoot the I/O PCB.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
2/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Malfunctioning Proximity Sensor For 12 VDC proximity sensors, test the voltage at the proximity sensor. The 3wire 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 needletip 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
912
1
Activated
ON
23
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
23
0
Activated
OFF
912
1
N.O. 3 Wire 12V Proximity Sensor: (Black lead to ground and red lead to the black wire)
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
3/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Proximity Sensor State
LED
Voltage (VDC)
Diagnostic Bit
Without Activation
OFF
912
1
Activated
ON
02
0
Proximity Sensor State
LED
Voltage (VDC)
Diagnostic Bit
Without Activation
OFF
02
0
Activated
ON
35
1
N.C. 3 Wire 5V Proximity Sensor:
Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certi韈�ed to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are quali韈�ed and knowledgeable about the processes.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.
4/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Haas World Owner Resources Shopping Tools About Haas Haas Media Connect Haas China Getting Started Financing Distributor Network Haas Flickr Answers & Information (https://int.haascnc.com/region_china.asp? (https://data.haascnc.com/install) (https://www.haascnc.com/content/haascnc/en/owners/Financing.html) (https://www.haascnc.com/content/haascnc/en/about/.html) (http://www.韈�ickr.com/photos/haasautomation) (http://atyourservice.haascnc.com/) intLanguageCode=1033) Manuals and Docs Haas Parts Haas History Haas Instagram Haas Europe (https://diy.haascnc.com/(http://parts.haascnc.com/) (https://www.haascnc.com/content/haascnc/en/about/history.html) (http://www.instagram.com/haas_automation) (https://www.haascnc.com/content/haasc (https://int.haascnc.com/region_europe.asp? guide) Special Inventory Haas Service Haas YouTube Find A Distributor intLanguageCode=1033) Schools & Education (https://www.haascnc.com/content/haascnc/en/shop/category/inventory.html) (https://www.haascnc.com/content/haascnc/en/owners/Service.html) (http://www.youtube.com//haasautomation) (https://www.haascnc.com/content/haasc International (http://www.htecnetwork.org/) Event Calendar Haas Facebook (https://int.haascnc.com/lang.asp? Training & Tour (https://www.haascnc.com/content/haascnc/en/Community/Events (http://www.facebook.com/pages/Oxnard intLanguageCode=1033) (https://www.haascnc.com/content/haascnc/en/about/visit.html) CA/Haas-Automation-Inc/177787316584) Video Gallery Rotary Repair (https://www.haascnc.com/content/haascnc/en/video.html) Haas Linkedin (https://data.haascnc.com/rotaryrepair.asp) (https://www.linkedin.com/company/haas automation) Index of (https://diy.haascnc.com/node/1000348421/) Haas Motorsports (http://motorsports.haascnc.com) Frequently Asked Questions (https://diy.haascnc.com/node/1000344136/) Jobs & Careers (https://www.haascnc.com/content/haasc Common Symptoms (https://diy.haascnc.com/node/1000348546/) © 2017 Haas Automation, Inc – CNC Machine Tools
2800 Sturgis Rd., Oxnard, CA 93030 / Toll Free: 800-331-
of Use | | Trademark
6746 Phone: 805-278-1800 / Fax: 805-278-2255 (http://motorsports.haascnc.com)
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
5/5
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Proximity Sensor - Troubleshooting Guide Print a PDF (/printpdf/reference-docs/proximity-sensor-troubleshooting-guide) The image shows the various types of proximity sensors used on Haas machines.
Symptom
Possible Cause
Corrective Action
Positioning error or timeout alarms.
Noise or electrical interference from high power cables.
Reroute the cable away from high power sources.
There is a poor connection, or a signal interference from contamination.
Clean, reseat connectors, and correct the cause of contamination.
There is a poor connection, or a signal interference from contamination.
Clean, reseat connectors, and correct cause of contamination.
The trip flag or the sensor is damaged or incorrectly aligned.
Align the trip flag or sensor.
The cables or the I/O PCB is at fault.
Troubleshoot the cables or the I/O PCB.
The proximity sensor is at fault.
Check the communication between the sensor and control.
The diagnostic bit fluctuates while the monitored components are idle.
The diagnostic bit does not change state.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
1/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Signal Noise / Signal Interference Make sure that the proximity sensor cable is not damaged, and that it is separated from highpower 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, go to diy.haascnc.com (http://diy.haascnc.com) to troubleshoot the I/O PCB.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
2/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Malfunctioning Proximity Sensor For 12 VDC proximity sensors, test the voltage at the proximity sensor. The 3wire 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 needletip 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
912
1
Activated
ON
23
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
23
0
Activated
OFF
912
1
N.O. 3 Wire 12V Proximity Sensor: (Black lead to ground and red lead to the black wire)
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
3/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Proximity Sensor State
LED
Voltage (VDC)
Diagnostic Bit
Without Activation
OFF
912
1
Activated
ON
02
0
Proximity Sensor State
LED
Voltage (VDC)
Diagnostic Bit
Without Activation
OFF
02
0
Activated
ON
35
1
N.C. 3 Wire 5V Proximity Sensor:
Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certi韈�ed to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are quali韈�ed and knowledgeable about the processes.
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.
4/5
9/19/2017
Proximity Sensor Troubleshooting Guide | Customer Resource Center
Haas World Owner Resources Shopping Tools About Haas Haas Media Connect Haas China Getting Started Financing Distributor Network Haas Flickr Answers & Information (https://int.haascnc.com/region_china.asp? (https://data.haascnc.com/install) (https://www.haascnc.com/content/haascnc/en/owners/Financing.html) (https://www.haascnc.com/content/haascnc/en/about/.html) (http://www.韈�ickr.com/photos/haasautomation) (http://atyourservice.haascnc.com/) intLanguageCode=1033) Manuals and Docs Haas Parts Haas History Haas Instagram Haas Europe (https://diy.haascnc.com/(http://parts.haascnc.com/) (https://www.haascnc.com/content/haascnc/en/about/history.html) (http://www.instagram.com/haas_automation) (https://www.haascnc.com/content/haasc (https://int.haascnc.com/region_europe.asp? guide) Special Inventory Haas Service Haas YouTube Find A Distributor intLanguageCode=1033) Schools & Education (https://www.haascnc.com/content/haascnc/en/shop/category/inventory.html) (https://www.haascnc.com/content/haascnc/en/owners/Service.html) (http://www.youtube.com//haasautomation) (https://www.haascnc.com/content/haasc International (http://www.htecnetwork.org/) Event Calendar Haas Facebook (https://int.haascnc.com/lang.asp? Training & Tour (https://www.haascnc.com/content/haascnc/en/Community/Events (http://www.facebook.com/pages/Oxnard intLanguageCode=1033) (https://www.haascnc.com/content/haascnc/en/about/visit.html) CA/Haas-Automation-Inc/177787316584) Video Gallery Rotary Repair (https://www.haascnc.com/content/haascnc/en/video.html) Haas Linkedin (https://data.haascnc.com/rotaryrepair.asp) (https://www.linkedin.com/company/haas automation) Index of (https://diy.haascnc.com/node/1000348421/) Haas Motorsports (http://motorsports.haascnc.com) Frequently Asked Questions (https://diy.haascnc.com/node/1000344136/) Jobs & Careers (https://www.haascnc.com/content/haasc Common Symptoms (https://diy.haascnc.com/node/1000348546/) © 2017 Haas Automation, Inc – CNC Machine Tools
2800 Sturgis Rd., Oxnard, CA 93030 / Toll Free: 800-331-
of Use | | Trademark
6746 Phone: 805-278-1800 / Fax: 805-278-2255 (http://motorsports.haascnc.com)
https://diy.haascnc.com/referencedocs/proximitysensortroubleshootingguide#gsc.tab=0
5/5
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