Renishaw OMI-2 Installation And User Manual
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Renishaw OMI-2 Installation And User Manual

Renishaw OMI-2 Installation And User Manual

Optical machine interface
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Installation and user's guide
H-2000-5233-02-A
OMI-2 - optical machine interface
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Summary of Contents for Renishaw OMI-2

  • Page 1 Installation and user’s guide H-2000-5233-02-A OMI-2 - optical machine interface English Français Deutsch Italiano...
  • Page 2 Renishaw plc. without obligation to notify any person of such changes. Trademarks RENISHAW® and the probe emblem used in the RENISHAW logo are registered trademarks of Renishaw plc in the UK and other countries. apply innovation is a trademark of Renishaw plc.

  • Page 3: Table Of Contents

    Fitting flexible conduit ........19 OMI-2 ............... 5 Removing the OMI-2 window ......20 Mounting bracket ..........6 Removing and re-fitting OMI-2 the label ..21 OMI-2 visual diagnostics ......... 7 Changing the reception range ....... 22 OMI-2 outputs ..........9 Fitting OMI-2 window ........

  • Page 4: Ec Declaration Of Conformity

    Emissions to class A - (non-domestic) limits. and that it complies with the requirements of directive (as amended): 89/336/EEC Electromagnetic compatibility The above information is summarised from the full EC declaration of conformity. A copy is available from Renishaw on request.

  • Page 5: Fcc Declaration (Usa)

    Under certain circumstances the probe signal The user is cautioned that any changes or may falsely indicate a probe seated condition. modifications not expressly approved by Renishaw Do not rely on probe signals to stop the plc, or authorised representative could void the machine’s movement.

  • Page 6: Installation And User's Guide

    OMI-2 with care. operation over 0 °C to 60 °C (32 °F to 140 °F) ambient temperature range. Do not apply labels to the front of the OMI-2. Patent notice Changes to equipment Features of products shown in this guide, and...
  • Page 7 ‘Modulated’ mode. Power supply The OMI-2 can draw its supply from the CNC machine 12 V to 30 V d.c. Alternatively, power may be supplied from a Renishaw PSU3 power supply unit. The maximum supply 16 (0.63)

  • Page 8: Mounting Bracket

    Install OMI-2 with cable exiting from lower side for good coolant run off. 45° 45 (1.77) Mounting bracket cannot 90 (3.54) be used with an OMI-2 (0.08) 3 pairs of holes Ø5.3 (0.20) permit in rear exit configuration. OMI-2 mounting in alternative orientation...

  • Page 9: Omi-2 Visual Diagnostics

    LOW BAT LED to be lit. MAGNETIC LABEL Replace the OMP battery as soon as A summary of OMI-2 LED is practicable after the LED is lit. activity is provided on a magnetic label. The label may be placed on any machine flat metal surface.
  • Page 10 OMI-2 visual diagnostics 3. LED (green, red) – PROBE STATUS NOTE: This bi–colour LED is lit when the OMI-2 If the ERROR SSR is activated because the blue is powered. or yellow condition causes the loss of a good Green - Probe is seated.

  • Page 11: Omi-2 Outputs

    OMI-2 outputs OMI-2 outputs There are five outputs: Probe status 2a (5 V isolated driven skip): Probe status 1 (SSR) Load current = 50 mA max. Probe status 2a (5 V isolated driven skip) Output voltages Sourcing = 4.5 V min at 10 mA.
  • Page 12 The Low Battery, Probe Status, and Error LEDs will start flashing red when an output overload has occurred. All outputs will be switched off. If this occurs, turn off the power supply and remove the source of the problem. Turning on the power supply will reset the OMI-2.
  • Page 13 (green / yellow), or the red and black wires (power supply), as this could result in permanent damage to the OMI-2 and/or the customer power supply. The use of in-line fuses at the machine cabinet end is recommended to provide protection for the OMI-2 and cable.

  • Page 14: Omi-2 Output Waveforms

    OMI-2 output waveforms OMI-2 output waveforms Outputs can be inverted by switches - see section ‘Switches SW1, SW2 and start input’ PROBE Seated Probe Seated OMI-2 Triggered Error Probe switch SSR/Driven e.g. Error switch Probe Probe battery Outputs low signal...
  • Page 15 OMI-2 output waveforms PROBE Seated Probe Seated Triggered Error Probe OMI-2 switch Probe Probe e.g. Error switch SSR/Driven trigger reseat low signal clear battery Outputs Power LOW BATTERY SSR open SSR closed Normally open PROBE STATUS Output high 2a/2b (LEVEL)

  • Page 16: Switches Sw1, Sw2 And Start Input

    Switch SW1 output Switches SW1, SW2 configuration and start input Pulsed To gain access to the switches, remove the OMI-2 window Level SWITCH SW1 output configuration CAUTION: Factory settings shown are for: Exercise caution when using error SSR in A-5191-0049...
  • Page 17 Switches SW1, SW2, and start input Switch SW2 output configuration Auto start Factory settings shown are for: A-5191-0049 ‘Auto start’ selection causes the system to A-5191-0050 send a START signal at one second intervals, and should only be used when there is no available output from the machine control.

  • Page 18: Wiring Diagram

    Wiring diagram Wiring diagram (with the output groupings shown) Turquoise OMI-2 Probe status 1 (SSR) Turquoise/black Violet Low battery (SSR) Violet/black Green Error (SSR) Green/black White Machine start input Brown –ve Yellow Driver Signal Probe status 2a Grey (5 V isolated driven skip)

  • Page 19: Installation With Inspection And Tool Setting Probe

    Installation with inspection Remote external and tool setting probe audible output On machines where the OMI-2 is to be Any one of the probe status outputs can be integrated with a tool setting probe input, used to drive an external audible indicator...

  • Page 20: Omi-2 Cable

    OMI-2 cable OMI-2 cable Standard cable variants Cable termination The OMI-2 standard polyurethane cables are A ferrule should be crimped onto 8 m (26 ft) and 15 m (49 ft) long. each cable wire for more positive connection at the terminal box.

  • Page 21: Omi-2 Cable Sealing

    OMI-2 cable sealing and fitting flexible conduit OMI-2 cable sealing Fitting flexible conduit Coolant and dirt are prevented from entering the OMI-2 by the cable sealing gland. OMI-2 cable can be protected against physical damage by fitting flexible conduit if required. Recommended flexible conduit is Anamet Sealtite HFX (5/16 in) polyurethane.

  • Page 22: Removing The Omi-2 Window

    Removing the OMI-2 window Removing the OMI-2 window It is not necessary to remove the OMI-2 from the machine when adjusting the switches or installing new parts. The window may be removed to either change reception/start range settings and output options - see relevant section, or to replace a broken window.

  • Page 23: Removing And Re-Fitting Omi-2 The Label

    Removing and re-fitting the OMI-2 label Removing the OMI-2 label Window Press the top of the label to enable removal. 3. The window fits tightly in the OMI-2 body, and is removed using the two long screws, Ensure cleanliness is observed during this procedure.

  • Page 24: Changing The Reception Range

    Changing the reception range Changing the reception range (factory set to 100% range) Avoid touching filter To reduce the reception Avoid touching filter range to 50%, move the filter to position indicated.

  • Page 25: Fitting Omi-2 Window

    1. Before fitting window, check for any damage Screw torque is 0.4 Nm (0.29 lbf.ft). to screws or scratch marks which could prevent sealing. 2. Ensure that the 'O' ring seating in the OMI-2 body is clean. 5. Place window complete with 'O' ring onto OMI-2 body.

  • Page 26: Screw Torque Values

    Screw torque values Screw torque values Nm (lbf.ft). 3 mm AF 2 Nm (1.47 lbf.ft) 8 mm AF 4 mm AF 5 Nm (3.68 lbf.ft) HOLD 7/8 in AF 22 Nm (16.22 lbf.ft) MAXIMUM...

  • Page 27: Fault Finding

    Probe is out of START range Change CNC program to bring when in Optical Stop probe within START RANGE of mode the OMI-2 and that the appropriate START RANGE (SW2) is selected Beam obstructed Clean the OMI-2 window and remove any obstructions...
  • Page 28 Probe has moved outside Change the CNC program to bring RECEPTION RANGE the probe within the RECEPTION RANGE of the OMI-2 and ensure that the appropriate RECEPTION RANGE is selected Probe is in Timer Off mode Increase Timer Off time setting or...
  • Page 29 Reseat probe is set to Level Machine Start Change the adjacent probe to Low A signal is being received Power Mode or change the OMI-2 from a probe on an adjacent RECEPTION RANGE to 50% if machine tool this range is acceptable...
  • Page 30 CNC program A signal is being received Change the adjacent probe to Low from a probe on an adjacent Power Mode or change the OMI-2 machine tool RECEPTION RANGE to 50% if this range is acceptable Probe was already ‘on’ when...

  • Page 31: Parts List

    A-5191-0300 Comprising 2.5 mm hexagon wrench, 4 mm hexagon wrench, 14 x ferrules, 2 x M5 screws, 2 x M5 washers and 2 x M5 nuts. The serial number of each OMI-2 is found at the bottom of the housing.
  • Page 32 Renishaw plc +44 (0)1453 524524 New Mills, Wotton-under-Edge, +44 (0)1453 524901 Gloucestershire, GL12 8JR uk@renishaw.com United Kingdom www.renishaw.com For worldwide contact details, please visit our main web site at www. renishaw.com/contact *H-2000-5233-02*...

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