Wireless Probe System - How it Works and Troubleshooting Guide

How it Works

The Wireless Intuitive Probing System (WIPS) includes two touch probes: an OMP40-2 work probe and a OTS wireless tool probe. A touch probe is a precise, calibrated switch. When the stylus of the probe is touched or pressed, the probe provides a “skip” signal to the machine control. The machine software accurately records the position of the X,Y, or Z axes at the precise time it receives the skip signal. Both probes communicate through infrared signals with the Optical Machine Interface (OMI-2H) mounted inside the machine enclosure. The OMI-2H also switches the work probes on and off.
  1. OMP40-2 work probe: A spindle-mounted wireless probe that communicates with an optical interface.
  2. Work probe stylus: The part of the work probe that touches parts during measurement.
  3. Tool probe stylus: The part of the tool probe that tools touch during measurement. Tools touch the top and side of the stylus when the probe measures tool length and diameter.
  4. OTS tool probe:The OTS is a battery-powered, wireless probe.
  5. OMI-2H Optical Machine Interface:The wireless interface for the OMP40-2 work probe. The OMI-2H uses infrared light to communicate with the CNC control and switch the probe on or off.
  6. OMI cable: This cable connects the OMI to the CNC control.

Work probes for Wireless Probe System (WIPS) do not work in the wired probe systems (VQCPS).

  1. The VQCPS work probe (P/N 60-0024) has a square Haas logo.
  2. The WIPS work probe (P/N 60-0050) has a round Haas logo.
Probe Operation: Power on the Work Probe Power on the Tool Probe
Classic Haas Control (CHC)
M59 P1134;
Push CYCLE START.
M59 P1133;
G04 P1.0;
M59 P1134;
Push CYCLE START.
Next Generation Contol (NGC)
M59 P3;
Push CYCLE START.
M59 P2;
G04 P1.0;
M59 P3;
Push CYCLE START.

 

The LEDs on the work probe flash green when the probe is powered on and ready for use.

When the probe stylus is touched, a “beep” sound is made by the CNC control.

The LEDs on the work probe flash red each time the stylus is touched.

When the stylus on the tool probe is touched, the CNC control makes a "beep" sound.

The tool probe does not have any LEDs.

OMI-2H Operation

  1. START SIGNAL (yellow): This LED flashes for one second when the OMI-2H sends a start signal to switch on or switch off the work probe or the tool probe.
  2. LOW BATTERY (red): If the OMI-2H detects a low battery from one of the probes, the low battery LED is on. Replace the batteries in the probes.
  3. PROBE STATUS (green,red): This bi-color LED is green when the probe is powered on, and red when the probe is triggered.
  4. ERROR (red, blue, yellow): Tri-color LED indicates a weak or lost signal from the probe. Red indicates the probe has failed or switched off. Blue indicates a signal from a second probe is being received. Yellow indicates that a weak signal is received. The probe signal could be blocked from a fixture or rotary table.
  5. SIGNAL CONDITION (red, blue, yellow): This tri-colored LED indicates the strength of the signal from the probes. Red indicates no signal from the probe. Yellow indicates a weak signal. Green indicates a good signal.
  6. ACTIVE PROBE (green): There are (2) LEDs that show which probe is currently active.

Symptom Possible Cause Corrective Action Section
Alarm 1101 PROBE STARTUP FAILURE. Bad batteries. Replace the batteries. 1
The settings in the work probe are not correct. Correct the settings. 5
Alarm 1092 PROBE OPEN. Alarm 1093 PROBE FAIL. Interference from the work lights. Adjust the work lights. 2
The settings in the work probe are not correct. Correct the settings. 5
The surface of the part was not found. Edit the program. 4
Incorrect measurements. The probe is not calibrated. Calibrate the probe. 3

Section 1

Symptom: Alarm 1101 PROBE STARTUP FAILURE.

Possible Cause: Bad batteries.

Corrective Action:

Battery replacement is always the first step in probe troubleshooting. Replace both batteries at the same time. Test the batteries before you install them.

The batteries in the probes have a life span of about (8) months, and must be replaced regularly. If the batteries are low, the work probe's green and blue LEDs may flash. If the batteries are completely dead, the red LED may constantly be on.

Do not rely on a multimeter for testing the batteries. The lithium batteries in the probe may read 3.6 Volts from a multimeter, even though they are low.

Write the date on newly installed batteries for future reference.

note: Do not touch the stylus during battery replacement. If the stylus is touched, the probe may power on in the setting mode. Settings can be accidentally changed in this mode.

Section 2

Symptom: Alarm 1092 PROBE OPEN. Alarm 1093 PROBE FAIL.

Possible Cause: Interference from the work lights.

Corrective Action:

Turn the work lights off to begin troubleshooting. Make sure the work lights inside the machine are not aimed at the probe or the OMI-2H. Bright lights can interfere with the work probe. Make sure no bright lights are aimed at the machine.

Section 3

Symptom: Incorrect measurements.

Possible Cause: The probe is not calibrated.

Corrective Action:

The probes need to be calibrated any time a stylus has been replaced, the tool probe has been moved, or if the CNC control generates alarms during probe routines.

Follow the procedure to calibrate the tool probe and the work probe. Refer to:

The probes must be calibrated in this order:

  1. Tool probe.
  2. Work probe length.
  3. Work probe diameter.

Section 4

Symptom: Alarm 1092 PROBE OPEN. Alarm 1093 PROBE FAIL.

Possible Cause: The surface of the part was not found.

Corrective Action:

Edit the program to start the probe closer to the part.

Section 5

Symptom: Alarm 1101 PROBE STARTUP FAILURE. Alarm 1092 PROBE OPEN. Alarm 1093 PROBE FAIL.

Possible Cause: The settings in the work probe are not correct.

Corrective Action:

A procedure to verify the probe settings is included in the Renishaw Probes Installation guide. Refer to Mill - Renishaw Probes - Installation.

note: Do not touch the stylus when you install the batteries. This can change the settings.

To change the probe settings you move the stylus in a specified order. Refer to the illustration to see the specified order.

The Illustration shows these symbols: The symbols tells you this: This gives this result:
A red arrow that points to the right. Move and hold the stylus for less than (4) seconds. Selects the next option within a group.
A green arrow that points down. Move and hold the stylus for more than (4) seconds. Moves from one group to another.
A white arrow that points down. Do not touch the stylus for (20) seconds or more. Exits the set up.

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 certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.

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