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OI: BK MIKRO LIN.B
Tool monitoring system for linear scanning
Scanners with maximum stroke of 50 mm or 100 mm
553 Industrial Dr. Hartland, WI 53029 262-367-8665 fax 262-367-0208
web-site
www.techna-tool.com
Rev. 1.01 dated 24.1.2006
BK MIKRO 50/100-LIN.B
Operating Instructions
Issue 1.01
Released: Jan, 2001
email
techtool@techna-tool.com
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Summary of Contents for Techna-Tool BK MIKRO 50-LIN.B
- Page 1 Tool monitoring system for linear scanning Scanners with maximum stroke of 50 mm or 100 mm Operating Instructions Issue 1.01 Released: Jan, 2001 553 Industrial Dr. Hartland, WI 53029 262-367-8665 fax 262-367-0208 web-site www.techna-tool.com email techtool@techna-tool.com Rev. 1.01 dated 24.1.2006 - I -...
- Page 2 OI: BK MIKRO LIN.B General Notice Safety guidelines These operating instructions contain notices, which you should observe to ensure your own personal safety, as well as to protect the product and connected equipment. These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger: Immediate danger to life and limb of personnel and others.
- Page 3 OI: BK MIKRO LIN.B General Notice BK MIKRO is a control system suitable for tool as well as for object and free space monitoring applications. It may only be used for the applications described in the technical documents, and only in connection with devices or components from other manufacturers which have been approved or recommended by us.
- Page 4 General Notice OI: BK MIKRO LIN.B Qualification of personnel Only qualified personnel may carry out the following activities on the control system: installation, commissioning, operation, and maintenance. Qualified persons in accordance with the safety guidelines are defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and systems in accordance with established safety practices and standards.
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Page 5: Table Of Contents
OI: BK MIKRO LIN.B Contents Contents Characteristics........................3 System Components......................4 Control unit ........................... 4 2.1.1 Technical data ........................6 Mechanical dimensions ......................7 2.1.2 Connection terminals ......................7 Power supply......................... 7 Control inputs........................8 Selection inputs ........ - Page 6 Installation Notes....................... 25 Control voltage connection ....................25 Mounting brackets ......................26 Interference prevention ......................28 Appendix A Techna-Tool & Manufacturing Part Numbers..................28 Table of Figures Fig. 2-1: Control unit – Front view with plug-in connections ..............4 Fig. 2-2: Control unit –...
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Page 7: Characteristics
OI: BK MIKRO LIN.B Characteristics BK MIKRO LIN.B is a tool monitoring system customized for longitudinal scanning applications. The complete BK MIKRO LIN.B system comprises • a control unit, • a sensor (scanner), • a connection cable. BK MIKRO LIN.B is based on existing design concepts for tool, object and free space monitoring. These system monitors geometries, which require longitudinal scanning, especially in cases where rotary scanning is inappropriate or impossible, for example cavities, bore holes, limited space arrangements or critical coolant pressure. -
Page 8: System Components
BA: LS-IC/BK MIKRO LIN.B System Components Control unit The control unit is available in three models preconfigured for different supply voltages. The relevant version will be marked on the rating plate: 24 VDC, 120 VAC, 230 VAC. On its front panel, the control unit is fitted with plug-in screw terminals to connect all machine inputs and outputs, supply voltage, and the scanner. -
Page 9: Fig. 2-2: Control Unit - "Multi" And "Single
OI: BK MIKRO LIN.B "Multi" "Single" Designation: BK MIKRO LIN.B Multi Designation: BK MIKRO LIN.B Single Control inputs Control inputs Power supply and Power supply and Control voltage Control voltage These terminals must not Selection inputs 24 VDC 24 VDC be connected ! + –... -
Page 10: Technical Data
BA: LS-IC/BK MIKRO LIN.B 2.1.1 Technical data Housing Insulating material housing, protection class II, built-in unit Protection type IP 20 Dimensions (W x H x D) 45 mm x 75 mm x 107.5 mm Case mountings Sectional rail, 35 mm, to DIN EN 50022 Power supply voltage 24 VDC ±20% PELV = 0.25 A... -
Page 11: Mechanical Dimensions
OI: BK MIKRO LIN.B Mechanical dimensions General tolerances ISO 2768 – mK Fig. 2-3: Control unit – Dimensions 2.1.2 Connection terminals Power supply "24 VDC" model: + – Supply voltage input 24 VDC 24 V DC – Reference potential of 24 VDC supply voltage "120 VAC"... -
Page 12: Control Inputs
BA: LS-IC/BK MIKRO LIN.B Control inputs Reference potential for control inputs and selection inputs Com Start Teach Start An input level of +24 VDC relative to "Com" terminal will trigger a "Start" cycle (the real scanning process). "Multi" Teach An input level of +24 VDC relative to "Com" terminal will trigger a learn Com Start Lern cycle (the "Teach-in"). -
Page 13: Relay Outputs
OI: BK MIKRO LIN.B Relay outputs k.o. K.O. These two terminals are used to indicate a fault message (K.O.). o.k. O.K. These two terminals are used to indicate a no fault message, i.e. a good cycle (O.K.). The terminals have been designed as dry relay contacts. By switch selection, they may be configured as either normally open or normally closed. -
Page 14: Rotary Switches
BA: LS-IC/BK MIKRO LIN.B 2.1.4 Rotary switches Only for "Multi”! The two rotary switches P1 and P2 are used to set the start position and the end position of the range, which is controlled by object monitoring or free space monitoring. The position settings are possible in steps of 6.25%. -
Page 15: Scanning Intensity" Switch
OI: BK MIKRO LIN.B "Scanning intensity" switch Speed and force of scanner's wand in its scanning range. For "Teach-in" and "Start" cycle, in case of a good message, the impact force amounts to: approx. 5 N approx. 9 N "Output relay" switch Mode of operation for the two output relays (see section "Relay outputs"). -
Page 16: Notes On Technical Safety
BA: LS-IC/BK MIKRO LIN.B 2.1.6 Notes on technical safety according to DIN VDE 160 according to EMC directive 89/336/EEC for the models with power supply 24 VDC and 120 VAC The control unit comprises the following circuits, all isolated from each other: K.O. -
Page 17: Scanner
OI: BK MIKRO LIN.B Scanner The scanner housing is cylindrical and smooth, thus permitting easy installation (e.g. by using a mounting bracket). The scanner is designed for easy access for servicing and changing the wand's tip. Aligning the scanner is easy and requires no additional instruments or aids. After a supply voltage has been applied, the scanner travels from the momentary position to the internal backstop, moves into its stop position and will be held there by applying a low voltage. -
Page 18: Mechanical Dimensions
BA: LS-IC/BK MIKRO LIN.B Mechanical dimensions TK50-LIN.B = "50 mm max. stroke" Requirement for correct monitoring: "Scanner" switch at control unit set to "50" ! Stop position ø 32 max. stroke Scanning wand (tip exchangeable, M3x6) Housing Connection cable (angled connector) Connector (straight) General tolerances... -
Page 19: Accessories
OI: BK MIKRO LIN.B 2.2.2 Accessories BK MIKRO LIN.B, all scanners ! Scanning tip extension, Scanner tip, brass 0.7 x ø2.0 Adapter (with point of fracture Scanner tip, p lastic in case of damage), M2.5 56.5 Wand holder M2.5 M2.5 Fig. -
Page 20: Connection Cable
BA: LS-IC/BK MIKRO LIN.B Connection cable Control unit and scanner are connected by a 6-wire PUR-cable: • Small circular connector to DIN 45322 at the control unit end. • Molded plug at the scanner end. • Length 5 m, can be extended to a maximum length of approximately 25 m with extension cables. -
Page 21: Mode Of Operation
OI: BK MIKRO LIN.B Mode of Operation BK MIKRO LIN.B can be operated in different ways: • Monitoring with learn function (Teach mode), especially for "Multi": 8 different scanning positions can be binary coded. • Monitoring with setting scanning range (Switch mode), possible only for "Multi". -
Page 22: Output Of Results
BA: LS-IC/BK MIKRO LIN.B Output of results • Fault message (K.O.) A fault message will be output immediately on detection. The scanner will return to its stop position. • Good cycle message (O.K.) On reaching the stop position, scanning process results will be indicated. This ensures that the scanner will have left the monitoring range at the time the results are output and that there are no further waiting periods to be considered. -
Page 23: Monitoring Functions
OI: BK MIKRO LIN.B Monitoring Functions Teach mode = Monitoring with learn function "Multi": One of the possible monitoring functions, requirement: P1=0, P2=0 "Single": Standard monitoring function The scanning range will be determined by a learn cycle (external control signal). This mode of operation is the typical mode for tool detection applications: The system will check for the presence of the tool at the learned position. -
Page 24: Start", The Real Scanning Process
BA: LS-IC/BK MIKRO LIN.B 4.1.2 "Start", the real scanning process Active input signal on the "Start" screw terminal of the control unit. The scanner will travel to the previously "learned" position of the object to check for its presence. • If the tool is within the monitoring range, the "O.K."... -
Page 25: Switch Mode = Monitoring With Setting The Scanning Range
OI: BK MIKRO LIN.B Switch mode = Monitoring with setting the scanning range Only for "Multi" ! Requirement: Rotary switches 0 ≤ P1 < P2 ≤ 93.75 Rotary switch P1 and P2 settings will define the scanning range, in steps of 6.25%. Monitoring range P1 = start position... -
Page 26: Setting The Position
BA: LS-IC/BK MIKRO LIN.B 4.2.3 Setting the position The preset position results from the number of pulses, which the motor gives to the scanning wand through the gear. Therefore deviations in the device dimensions cause differences of the position. Note: BK MIKRO LIN.B is not an absolute measuring system ! Switch setting Position [in mm, approx.]... -
Page 27: Cycle Times
OI: BK MIKRO LIN.B Cycle Times Scanning times The following times designate the moment of the output of results after a scanning process. They result with minimum tolerance. Stroke "Teach-in" "Teach-in" "Start" "Start" Intensity low Intensity high Intensity Intensity Home O.K. Home O.K. -
Page 28: Status Indication
BA: LS-IC/BK MIKRO LIN.B Status Indication Yellow LED Fast flashing = Self-test After power-up, the system will carry out a self-test indicated by fast flashing of this yellow LED. Steady illumination = Ready to operate Following its self-test, the system is ready to operate. The LED stops flashing and remains steady. -
Page 29: Installation Notes
OI: BK MIKRO LIN.B Installation Notes Control voltage connection Power supply Power supply 24 VDC Control voltage Control voltage 24 VDC 24 VDC Start Teach-in Start Teach-in – – Com Start Teach Com Start Teach 24 V DC 24 V DC K.O. -
Page 30: Mounting Brackets
BA: LS-IC/BK MIKRO LIN.B Mounting brackets The delivering program offers two mounting brackets for the scanner as accessories. Type Article no. Designation Material 8.0070 61 07 082 Mounting bracket [ø 32 mm] AlCuMgPb, F 38, 10 thick, naturally anodized 2 cheese head screws 8.8 zinced with hexagonal hole M4x60 2 self-securing nuts M4... -
Page 31: Fig. 7-3: Mounting Bracket [Ø 20 Mm]
OI: BK MIKRO LIN.B Type Article no. Designation Material 8.0770 61 07 165 Mounting bracket [ø 20 mm] AlCuMgPb, F 38, 8 thick, naturally anodized 2 cheese head screws 8.8 zinced with hexagonal hole M3x40 2 self-securing nuts M3 8 zinced General tolerances ISO 2768 –... -
Page 32: Interference Prevention
Possible additional noise filters: • RC combination (included in the contactor suppliers' product ranges) • Varistors • Diodes Appendix A BK Linear Manufacturing and Techna-Tool Part Numbers COMPLETE SYSTEMS: BKLIN50 System BKLIN50SYS (Includes BKLINSC/50, BKLINCTRL, BK5C5 and BKMB) BKLIN100 System BKLIN100SYS (Includes BKLINSC/100.
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