Installation and user's guide OMI
Contents
1. The ouput signals from the OMI 2C must be compatible with the machine control input Fault finding Fault finding If in doubt consult your probe supplier Symptom Cause 1 13 Action No LED display when power is on No power supply Cable used to connect the OMI 2C to the power supply has been damaged is of incorrect specification or has been incorrectly wired Ensure that the power source has not been isolated from the main electrical supply Visually inspect the cable for obvious signs of damage Test the cable to ensure the electrical continuity of each wire Verify that the cable has been correctly wired for use with the OMI 2C Rear pin connector on OMI 2C is loose or disengaged Ensure rear pin connector is properly engaged and secure Pins on electrical connector damaged or missing Visually inspect the connector to ensure that no pins are damaged or missing OMI 2C unit is itself defective Contact your supplier for assistance 1 14 Symptom Fault finding Cause Action OMI 2C LED continuously flashes red Output signal has required too high a current Confirm that the outputs from the OMI 2C are correctly wired into the inputs of the machine controller Reset the OMI 2C by first removing and then reapplying the power supply to the unit Disconnect all output wires and ensure that none have been connected to a power signal supply2. Probe fails to switch on when in optical start mode or switch off when in optical stop mode Installation CNC program fault Correct M code wiring and or CNC program Beam obstructed Clean the OMI 2C window and remove any obstructions Incompatible probe probe transmission setting Change probe or probe setting to modulated Dead probe batteries Replace probe batteries Optical interference is blocking the start signal Remove source of interference Symptom Fault finding Cause 1 15 Action Probe stops in mid cycle or An unexpected error occurs during a probing cycle or An unexpected trigger occurs during the probing cycle Beam obstructed Optical interference Remove obstruction Remove source of interference Intermittent wiring fault Correct wiring Probe is in timer off mode and has not been triggered for the timer period Increase timer off time setting or change probing routine Probe has not been triggered for more than 90 minutes Re start probe and ensure that the probe is not idle for 90 minutes Probe switches on but OMI 2C error remains active Interfering light source shining directly into OMI 2C window Remove source of interference A signal is being received from a probe on an adjacent machine Change the adjacent probe to low power mode Installa
3. Typical plot at 20 C 68 F Dotted line represents operating range with OMP60 low optical power 1 6 Mounting the OMI 2C Mounting the OMI 2C WARNING Ensure the machine tool is in a safe condition and power is removed before removing covers Only qualified persons should adjust switches A CAUTION Different versions of the OMI 2C operate with specific machine controllers Prior to installation ensure that the OMI 2C is compatible with the machine controller The OMI 2C should be mounted as near to the machine spindle as possible as shown in the system diagram on page 1 3 To achieve the best possible transmission range and performance envelope it is recommended that the mounting screw is positioned on the far side of the OMI 2C relative to the expected probe position When mounting the OMI 2C it is important that the sealing ring forms a tight seal around the rim of the bore into which the body of the OMI 2C is to be located A CAUTION Make sure that the sealing ring is lubricated prior to being mounted in the machine spindle OMI 2C dimensions and cable connection 1 7 OMI 2C dimensions and cable connection Socket head capscrew M4 x 12 22 0 87 111 5 4 39 5 T S wT sS X amp 29 1 14 pm E 4 lt oO gt 017 7 0 697 i 917 6 0 693 Binder connector a 8 0 31 Series 712 T 09 0427 80 08 6 75 0 27
4. gt Driver Pin 6 violet Low battery 20 mA maximum OV Pin 5 green Error 20 mA maximum OV q Buffer_ Pin 3 white Start input 15 V to 30 V 19 mA 30 V 15Vto30V_ Pin 2 red Power supply 15 V to 30 V ov Pin 1 black 200 mA maximum Screen Pin v grey A CAUTION The power supply 0 V should be terminated at the machine Machine ground ground star point star point 1 10 OMI 2C outputs The OMI 2C has three electrical outputs which are driven relative to the ground connection Probe status pin 4 Error pin 5 Low battery pin 6 The maximum rated sink or source current per output is 20 mA If this current is exceeded the OMI 2C isolates all outputs and the visual diagnostics LED will flash red When an 8 m Renishaw cable assembly is used and outputs are driven high they may be up to 2 V below the supply voltage Alternatively when the outputs are driven low they may be up to 2 V above 0 V When a 15 m Renishaw cable assembly is used and outputs are driven high they may be up to 2 5 V below the supply voltage Alternatively when the outputs are driven low they may be up to 2 5 V above 0 V OMI 2C electrical outputs and inputs NOTE Refer to parts list for Renishaw OMI 2C cable assemblies The OMI 2C will respond to a received probe trigger signal with a delay of 500 us 15 us The time delay from the physical probe trigger to any output change will depend on
5. Function fs Ra 1 6 64 1 OV 15 2 15V 30V Bore 3 Start diameter 4 Probe status 18 02 0 709 5 Error a hy 18 00 0 708 6 Low battery ah View A Installation 2 2 8 0 11 MAX 7 Screen detail_S S 610 24 minimum depth 8 Not used g 5 a dimensions mm in 1 8 Cable recommendation Cables must be routed carefully to avoid potential sources of electromagnetic interference Cable specification 4 5 mm 0 18 in to 5 0 mm 0 20 in 12 core screened cable each core 7 0 1 mm Standard cable variants The OMI 2C standard polyurethane cables are 8 m 25 ft and 15 m 49 ft long NOTE Maximum length of the specified cable must not exceed 30 m 98 ft OMI 2C cable recommendation and electrical connection OMI 2C electrical connection OMI 2C power supply The OMI 2C requires a suitably fused 500 mA 24 volt clean power supply which is capable of providing up to 200 mA of current The supply can be taken from the machine or via an external power supply It is important that any input voltage ripple will not cause the voltage to fall below 15 volts or rise above 30 volts Connection of the OMI 2C to the power supply is achieved via the 8 pin connector located on the rear of the OMI 2C If a Renishaw cable is supplied then the colours shown in the diagram opposite can be used OMI 2C wiring diagram 1 9 OMI 2C wiring diagram Driver Pin 4 turquoise Probe status 20 mA maximum Ov
6. Installation and user s guide H 2000 5256 05 A OMI 2C optical machine interface RENISHAW apply innovation English B English Installation and user s guide OMI 2C optical machine interface This page is intentionally left blank 2005 2014 Renishaw plc All rights reserved This document may not be copied or reproduced in whole or in part or transferred to any other media or language by any means without the prior written permission of Renishaw The publication of material within this document does not imply freedom from the patent rights of Renishaw plc Trade marks RENISHAW and the probe symbol used in the RENISHAW logo are registered trade marks of Renishaw plc in the United Kingdom and other countries apply innovation and names and designations of other Renishaw products and technologies are trade marks of Renishaw plc or its subsidiaries All other brand names and product names used in this document are trade names trade marks or registered trade marks of their respective owners Renishaw part no H 2000 5256 05 A Issued 07 14 Disclaimer RENISHAW HAS MADE CONSIDERABLE EFFORTS TO ENSURE THE CONTENT OF THIS DOCUMENT IS CORRECT AT THE DATE OF PUBLICATION BUT MAKES NO WARRANTIES OR REPRESENTATIONS REGARDING THE CONTENT RENISHAW EXCLUDES LIABILITY HOWSOEVER ARISING FOR ANY INACCURACIES IN THIS DOCUMENT Warranty Equipment requiring attention under warrant
7. lti colour LED Probe status Error e Low battery Typical system OMP60 probe with OMI 2C 1 3 CNC machining centre spindle CNC machine control OMI 2C optical machine ad interface Workpiece 1 4 System performance System performance Operating envelope Reflective surfaces within the machine cabinet may increase the signal transmission range Coolant residue accumulating on the windows of the OMI 2C and OMP will have a detrimental effect on transmission performance Wipe the windows clean as often as is necessary to maintain unrestricted transmission For best system performance ensure that the OMI 2C is mounted in a position which is not directly in front of a light source A CAUTION If two systems are operating in close proximity take care to ensure that signals transmitted from the OMP on one machine are not received by the OMI 2C on the other machine and vice versa Performance envelope of OMP60 probe and OMI 2C 1 5 Performance envelope of OMP60 H Switch on off probe and OMI 2C Operating standard power mode Operating low power mode OMP60 probe and OMI 2C 360 transmission around The probe and OMI 2C diodes must be in each probe axis in metres feet other s field of view and within the performance envelope shown The OMP60 is fully described in the OMP60 installation guide H 4038 8505 Optical centre line Range m feet
8. mes otherwise the transmission range may be reduced Wipe the window clean as often as is necessary to maintain unrestricted transmission When handling treat the OMI 2C with care It is a precision component that can be easily damaged Do not apply labels to or otherwise obstruct the window of the OMI 2C Contents Contents System overview Typicalsystem 00 System performance Performance envelope of OMP60 and Mounting the OMI 2C OMI 2C dimensions and cable connection OMI 2C cable recommendation and electrical connection OMI 2C wiring diagram 1 2 1 3 1 7 1 1 OMI 2C electrical outputs and inputs 1 10 OMI 2C visual diagnostics 1 11 OMI 2C output waveforms aaa 1 12 Faultfinding s a aaao a a o ara e a 1 13 Pants MSti ikea a a a ade e aa 1 17 1 2 System overview System overview The OMI 2C provides an interface between the machine controller and Renishaw s range of modulated transmission probes such as the OMP60 The OMI 2C converts optical signals into electrical signals suitable for use by the machine controller The OMI 2C converts electrical signals from the controller into modulated optical probe signals This facility allows the machine controller to be used to optically switch the probe on and off When in operation the OMI 2C will report the following probe conditions via a mu
9. negative effects on the environment For more information please contact your local waste disposal service or Renishaw distributor FCC Information to user FCC Section 15 19 This device complies with Part 15 of the FCC rules Operation is subject to the following conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Information to user FCC Section 15 21 The user is cautioned that any changes or modifications not expressly approved by Renishaw plc or authorised representative could void the user s authority to operate the equipment Information to user FCC Section 15 105 This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this installation guide may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case you will be required to correct the interference at your own expense Patent and safety notices Patent notice Features of OMI 2C optical machine i
10. nterface and other related products are the subject of one or more of the following patents and or patent applications EP 0974208 US 6839563 EP 1503524 JP 429401 Information for the user There are no user serviceable parts inside the OMI 2C Return defective units to an authorised Renishaw Customer Service Centre Please quote the serial number Remove power before performing any maintenance operations CNC machine tools must only be operated by competent persons in accordance with the machine supplier s operating instructions 1 iii Information for the machine s supplier It is the responsibility of the machine s supplier to ensure that the user is made aware of any hazards involved in operation including those mentioned in Renishaw product documentation and to ensure that adequate guards and safety interlocks are provided 1 iv Environment IP rating The front face of the OMI 2C is sealed to IPX8 when the unit is correctly installed Temperature Storage The OMI 2C should be stored in an area where the ambient temperature will remain between 10 C and 70 C 14 F to 158 F Operation The OMI 2C may be operated in ambient temperatures of between 0 C and 60 C 32 F and 140 F Specification Weight of unit with retaining bracket 70 g 2 5 oz Preliminary information Care of the equipment The OMI 2C should be kept clean from dirt coolant and machining debris at all ti
11. tershire GL12 8JR E uk renishaw com apply innovation United Kingdom www renishaw com For worldwide contact details please visit our main web site at www renishaw com contact H 2000 5256 05
12. the configuration of the probe OMI 2C input The OMI 2C has a single electrical input that allows the machine controller to switch the probe on and off The start input pin 3 must be connected to the machine s start and stop M code When the input is active 15 V to 30 V 19 mA 30 V the probe is switched on OMI 2C visual diagnostics 1 11 OMI 2C visual diagnostics When in operation the OMI 2C displays its present status via a multicoloured LED located behind the front window The LED display configuration is as shown below LED Probe status Graphic hint Flashing green for 3 seconds on Controller type Heidenhain i530 power up Siemens 840D aes Constant red Probe on and triggered Constant green Probe on and seated Constant blue Probe error or probe off Flashing blue and red Low battery when probe is triggered EEEE Flashing blue and green Low battery when probe is seated EEKE K Yellow flash 0 5 second duration Start stop signal A Flashing red Overcurrent condition reset OMI 2C by removing power 1 12 OMI 2C output waveforms OMI 2C output waveforms PROBE Seated Triggered Seated OMI 2C Probe Probe Probe eae Error Low be OUTPUTS on T T y battery aos Power off l Probe Output high status Trigger _ 4 low Output low Error Output high Normally E L Output low Output high Normally _ high Low battery high Output low
13. tion CNC program fault Check error output and CNC program 1 16 Symptom Fault finding Cause Action Probe indicates low battery condition but the machine control does not Installation CNC programming fault Check low battery output wiring and or CNC program Machine control does not respond to the probe being triggered or seated Probe is not switched on Attempt to switch it on Installation CNC program fault Correct probe status output wiring and CNC program A signal is being received from a probe on an adjacent machine tool Change the adjacent probe to low power mode Probe fails to switch on Probe was already on when the start signal was transmitted Check that the probe was turned off at the end of the last probing cycle Parts list 1 17 Parts list Please quote the part number when ordering equipment Type Part number Description OMI 2C kit A 5314 0001 OMI 2C kit that is compatible with Heidenhain i530 or Siemens 840D controllers Kit includes OMI 2C mounting kit toolkit and user s guide Cable 8 m A 5314 0015 OMI 2C cable assembly including 8 metres of cable Cable 15 m A 5314 0016 OMI 2C cable assembly including 15 metres of cable This page is intentionally left blank Renishaw plc T 44 0 1453 524524 New Mills Wotton under Edge F 44 0 1453 524901 RE N IS HAW B Glouces
14. y must be returned to your equipment supplier Unless otherwise specifically agreed in writing between you and Renishaw if you purchased the equipment from a Renishaw company the warranty provisions contained in Renishaw s CONDITIONS OF SALE apply You should consult these conditions in order to find out the details of your warranty but in summary the main exclusions from the warranty are if the equipment has been neglected mishandled or inappropriately used or modified or altered in any way except with the prior written agreement of Renishaw If you purchased the equipment from any other supplier you should contact them to find out what repairs are covered by their warranty 1 ii CE FCC statements and WEEE directive CE EC declaration of conformity Renishaw plc declares that the OMI 2C optical machine interface complies with the applicable standards and regulations Contact Renishaw plc at www renishaw com omi 2c for the full EC declaration of conformity WEEE directive The use of this symbol on Renishaw products and or accompanying documentation indicates that the product should not be mixed with general household waste upon disposal It is the responsibility of the end user to dispose of this product at a designated collection point for waste electrical and electronic equipment WEEE to enable reuse or recycling Correct disposal of this product will help to save valuable resources and prevent potential
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