Skip to main content

Instruction Manual

Wiring TwinProx

The TwinProx terminals are all color coded to match the TwinProx cable. This Machine Saver cable is BLUE in color. The BLUE cable is to go from TwinProx to TwinProx on the machine train.

BLUE JACKET CABLE WIRING

RED +24VDC to +30VDC

BLACK COMMON

GREEN MODBUS -

WHITE MODBUS +

GREY SHIELD / DRAIN WIRE

BLUE PRIVATE BUS PULSE SYNC -

YELLOW PRIVATE BUS PULSE SYNC +

 


 

The last TwinProx furthest from the power source must have the 120 ohm pull up resistor enabled. Use the User Interface to enable the pull up resistor. All pull up resistors are disabled when shipping from the factory.

The Machine Saver RED cable is for running the VDC power and the MODBUS to the edge device or to the PLC. The Machine Saver RED cable is to go from the first TwinProx on the machine train to the edge device or to the PLC. RED JACKET CABLE WIRING

RED +24VDC to +30VDC

BLACK COMMON

GREEN MODBUS -

WHITE MODBUS +

GREY SHIELD / DRAIN WIRE

 


 

Select Probe System and System Length

3300 Series 8mm 1 Meter 5 Meter 9 Meter
3309 Series (Focus View) 5mm 1 Meter 5 Meter 7 Meter
7200 Series 8mm 1 Meter 5 Meter 9 Meter
3000 Series 15 Feet 20 Feet --------
3300 Series 11mm 1 Meter 5 Meter 9 Meter

 


Adjusting Probe Distance Between Shaft and Probe Tip

When installing the proximity probe the LEDs are programmed by default to turn green at 40 mils (1016 um) -50 mil (1270um) distance from the shaft.

> 50 mils (1270 um) the channel LED will toggle BLUE / GREEN.

< 40 mils (1016 um) the channel LED will toggle RED / GREEN.

40 mils (1016 um) to 50 mil (1270um) is acceptable for applications such as speed, vibration and phase reference probe applications because it is in the middle of the linear range of the TwinProx.

If other applications, such as Axial Position Thrust, require more exact accuracy on the probe distance (GAP) setting use the User Interface Probe Distance GAP Settings to select a different probe gap and accuracy.
The same logic on LED colors will hold true.
Above your programmed GAP distance setting the LEDs will flash BLUE / GREEN and below that setting your LEDs will flash RED / GREEN.

RULE OF THUMB

1 complete turn installing a probe is about 40 mils (1000 microns).

1/2 of a turn is about 20 mils (500 microns).

1/4 of a turn is about 10 mils (250 microns).

Linearization Verification and/or Adjustment for Variable Target Material

The TwinProx can be linearized to work with magnetic target materials besides the default ASME 4140.

To use another target material you will need a manual static calibrator or a Machine Saver Probulator.

Using a Probulator follow the Probulator instructions for linearization.

If using a static calibrator (manual method) LINEARIZATION section in the User Interface select if you want to use 10 mil (254 um) increments or 5 mil (127 um) increments.

Start with the probe up against the target material 0 mils (0 um), press <ENTER>

then adjust the static calibrator micrometer to the next increment and press <ENTER>

then adjust the static calibrator micrometer to the next increment and press <ENTER>

and so on and so forth until the maximum range for the probe series has been recorded in the UI.

Then press <LINEARIZE>

At this point the TwinProx will adjust the inputs previously recorder and linearize all the recorded points.

Next you will need to verify the linearization

Start with the probe up against the target material 0 mils (0 um), press <ENTER>

then adjust the static calibrator micrometer to the next increment and press <ENTER>

then adjust the static calibrator micrometer to the next increment and press <ENTER>

and so on and so forth

When you reach the maximum range for the selected probe series and press <ENTER>

Then <PRINT RESULTS>

If the target material you have selected does not have enough carbon or magnetic properties you may see a reduced range. It is advisable in these situations to adjust the probe gap to a custom setting that is within the linear range for your target. If you cannot obtain your desired results consult the factory for additional information and assistance.

Phase Reference or Speed Applications

For a phase reference probe only one notch or protrusion in the shaft is allowed.

The 0° degree reference point in the 360° degrees of rotation will be the leading edge of that notch (key way) or protrusion (key)

The depth or rise of the notch or protrusion on the shaft shall be 50 mils or greater. The width or the notch or protrusion shall be greater than the width of the probe tip diameter.

One notch or protrusion shall be the default when selecting a channel to be configured for speed or phase reference.

To monitor a gear speed or a wheel with more than one notch or protrusion you will need to enter in the number of teeth in the gear when setting up the TwinProx for speed in the User Interface.

Helpful note; If the speed indicated does not match the expected use the dynamic data clip function to look at the signal.

It may be necessary to adjust the probe gap in to get the best clean signal and signal resolution. The speed function is counting the leading edges as they pass by the probe coil so if there is ringing or distortion due to the shape of the notch, protrusion or tooth it could negatively affect the results.

In high speed applications wider and deeper notch, protrusion or tooth work best.

For less magnetic target materials it is usually best to have a smaller distance from probe to the target.

Lastly it may be necessary to adjust the speed hysteresis to a larger value in the User Interface section for PHASE REFERENCE OR SPEED PROBE section.