Specifications and description KRTM 20 High Resolution Multicolor Contrast Scanner Dimensioned drawing en 01-2011/06 50116669 12mm 20mm 50mm 12-30 V DC 50 / 25 khz We reserve the right to make changes DS_KRTM20M_hr_Tdyn_en.fm Dynamic teach-in RGB transmitter Response time analog/digital (10μs/10μs or 10μs/20μs) Digital switching frequency 50kHz or 25kHz Resolution of 70 gray levels at the digital output Resolution of 400 gray levels at the analog output Analog output 1 10mA Changeover to the switching threshold Changeover to the analysis depth L/D switching Pulse stretching Accessories: (available separately) U L US C LISTED IEC 60947... IEC 60947... IP 67 M12 connectors, 5-pin (KD ) Ready-made cables (K-D ) Interchangeable objectives Tool for changing objectives A Light spot orientation vertical B Optical axis C M5/5.5mm deep D Scanning range E Front F Head Electrical connection PNP + analog PNP NPN + analog NPN
KRTM 20 Specifications Optical data Scanning range with objective 1 1) Scanning range with objective 2 2) Scanning range with objective 3 1) Light spot dimension with objective 1 1) Light spot dimension with objective 2 2) Light spot dimension with objective 3 1) Light spot orientation Light source Timing Switching frequency digital output Response time digital output Response jitter digital output Response time of analogue output Delay before start-up Electrical data Operating voltage U B Residual ripple Switching output Function characteristics Analog output Signal voltage high/low Output current Open-circuit current Indicators After power-on: ON LED on ON LED flashing slowly After teach-in: ON LED on 1) Interchangeable objective, available as accessory 2) Standard objective, state on delivery 3) 2=polarity reversal protection, 3=short-circuit protection for all outputs 12mm ± 1mm 20mm ± 2mm 50mm ± 5mm 3.0mmx1.0mm or round light spot D = 0.5mm 4.0mmx1.2mm or round light spot D = 0.6mm 10.0mmx2.0mm or round light spot D = 1.0mm vertical or horizontal LEDs (red, green, blue) 25kHz/50kHz reversible (see remarks) 20μs/10μs reversible (see remarks) 10μs 10μs 250ms 12 30VDC (incl. residual ripple) 15% of U B PNP, NPN light or dark switching, reversible via button 1 10mA (U B -2V)/ 2V max. 100mA 60mA device set to factory settings device not set to factory settings (display only for approx. 10s after power-on) switching threshold set to factory settings > switching threshold in center ON LED flashing slowly switching threshold was reconfigured > switching threshold close to the mark Q/T LED flashing quickly teaching error In run mode: ON LED on ready Delay LED pulse stretching on/off L/D LED light/dark switching Q/T LED on mark detected Q/T LED flashing quickly device error In configuration mode: ON LED flashing quickly device is in configuration mode Delay LED off 2x analysis depth (response time 20μs) Delay LED on 1x analysis depth (response time 10μs) L/D LED off switching threshold in center L/D LED on switching threshold close to the mark Mechanical data Housing diecast zinc Optics cover glass Weight 300g Connection type M12 connector, stainless steel, 5-pin Environmental data Ambient temp. (operation/storage) -25 C +60 C/-40 C +70 C Protection class IP 67 LED class 1 (acc. to EN 60825-1) VDE safety class II Protective circuit 3) 2, 3 Standards applied IEC 60947-5-2 Options Synchronous input PNP: Stop/Start measurement NPN: Stop/Start measurement Synchronization delay Teach input PNP: active / not active NPN: active/not active Teach delay Pulse stretching Device configuration Changeover switching threshold Changeover response time U B /0V or not connected 0V/U B or not connected 0.5ms U B /0V or not connected 0V/U B or not connected 10ms 20ms, can be activated via button continue to press the teach button during power-on see remarks see remarks Remarks Approved purpose: This product may only be used by qualified personnel and must only be used for the approved purpose. This sensor is not a safety sensor and is not to be used for the protection of persons. With shiny objects, the sensor is to be mounted at an angle to the object surface. Device configuration: 1. Configuration mode is activated by holding down the teach button during power-on (ON LED flashes). 2. The analysis depth is changed over using the Delay button: Delay LED off = 2x analysis depth (response time 20μs) Delay LED on = 1x analysis depth (response time 10μs) 3. The switching threshold is changed over using the L/D button: L/D LED off= Switching threshold in center L/D LED on= Switching threshold close to the mark 4. Press the teach button to end device configuration. 5. Back to factory settings: Simultaneously hold down the Delay button and the L/D button during poweron to reset the sensor to factory settings. Order guide See section Preferred types
KRTM 20 High Resolution Multicolor Contrast Scanner Function principle of the contrast scanner These contrast scanners are devices that can, with the aid of multiple transmitter colors (red, green, blue), distinguish between minimal gray levels (contrasts). By means of the automatic transmitter selection after a teach-in, the optimum functional safety for the respective contrast is determined and set by the device itself. As a result, any combination of marks or backgrounds can be detected with optimum functional safety. Through constant measurement and regulation of the emitted light, the devices operate with very good temperature stability. Re-teaching of the mark is, thus, no longer necessary. Each transmitter color consists of 4 LEDs. A longish light spot with four points is formed in the focal point. This very small, extremely bright light spot guarantees a high repeatability and positioning accuracy. For the case that the mark or background is not optimally printed, the light spot can be focused by slightly changing the scanning distance in such a way that a homogeneous, rectangular light spot is formed. With this teaching type, background and mark must be placed statically below the light spot. Using the synchronization input, the switching output can be activated or deactivated. Controls and indicators ON LED on ON LED flashing slowly ON LED flashing quickly ready / run mode device is not set to factory settings (Display only for approx. 10s after power-on) device is in configuration mode Q/T LED on Q/T LED flashing quickly mark detected teach error or device error Run mode: Delay LED Configuration mode: Delay LED off Delay LED on pulse stretching on /off 2x analysis depth (response time 20μs) 1x analysis depth (response time 10μs) Run mode: L/D LED Configuration mode: L/D LED off L/D LED on light/dark switching switching threshold in center switching threshold close to the mark Signal response during teach-in Dynamic 2-point teach Label with marks Open measurement window Close measurement window Receive signal Switching threshold in center Switching threshold near the mark Switching output for switching threshold in center Switching output for switching threshold near the mark Teach process The teach process is performed with the aid of the teach button or external teach lines. The two processes work in the same way. Operation Transmitter Indicator LED Position the light spot on the background Press the teach button approx. 0.5s or set the teach line to high level Advance paper sheet for at least one pattern length Briefly press teach button or teach line to low level Teaching error start new teaching process Red, green or blue light spot visible All colors are on White light spot visible All colors are on White light spot visible Changeover to red, green or blue Red, green or blue light spot visible All colors off Q/T, Delay and L/D LEDs flash Q/T, Delay and L/D LEDs flash ON LED on or flashes 3x Q/T LED on Q/T LED flashing > error ON LED on Q/T LED flashing > error
Calibration - analog output 1 10mA This is an uncalibrated measurement value. The current value that is output is proportional to the last contrast ascertained by means of teach-in. For rough calibration of the analog output, a teach-in with the following sequence is recommended. 1. Teach point on background > on white paper. 2. Teach point on mark > without object (into open space). KRTM 20 Preferred types Selection table Additional types on request Order code KRTM 20M/P-12-6420-S12 Part No. 50116474 Equipment Scanning range 12mm 20mm 50mm Light spot orientation vertical horizontal round Optical outlet front head Output wiring PNP NPN analogue current Other features static teach-in dynamic teach-in synchronous input
Specifications and description KRTM 20 High Resolution Multicolor Contrast Scanner Dimensioned drawing en 03-2014/04 50113452-01 12mm 20mm 50mm 12-30 V DC 50 / 25 khz We reserve the right to make changes DS_KRTM20Mhighres_en_50113452_01.fm Static teach-in RGB transmitter Response time analog/digital (10μs/10μs or 10μs/20μs) Digital switching frequency 50kHz or 25kHz Resolution of 70 gray levels at the digital output Resolution of 400 gray levels at the analog output Analog output 1 10mA Changeover to the switching threshold Changeover to the analysis depth L/D switching Pulse stretching IEC 60947... IEC 60947... IP 67 Accessories: (available separately) M12 connectors, 5-pin (KD ) Ready-made cables (K-D ) Interchangeable objectives Tool for changing objectives A Light spot orientation vertical B Optical axis C M5/5.5mm deep D Scanning range E Front F Head Electrical connection PNP + analog PNP NPN + analog NPN
KRTM 20 Specifications Optical data Scanning range with objective 1 1) Scanning range with objective 2 2) Scanning range with objective 3 1) Light spot dimension with objective 1 1) Light spot dimension with objective 2 2) Light spot dimension with objective 3 1) Light spot orientation Light source Timing Switching frequency digital output Response time digital output Response jitter digital output Response time of analogue output Delay before start-up Electrical data Operating voltage U B 3) Residual ripple Switching output Function characteristics Analog output Signal voltage high/low Output current Open-circuit current Indicators After power-on: ON LED on ON LED flashing slowly After teach-in: ON LED on 12mm ± 1mm 20mm ± 2mm 50mm ± 5mm 3.0mmx1.0mm or round light spot D = 0.5mm 4.0mmx1.2mm or round light spot D = 0.6mm 10.0mmx2.0mm or round light spot D = 1.0mm vertical or horizontal LEDs (red, green, blue) 25kHz/50kHz reversible (see remarks) 20μs/10μs reversible (see remarks) 10μs 10μs 250ms 12 30VDC (incl. residual ripple) 15% of U B PNP, NPN light or dark switching, reversible via button 1 10mA (U B -2V)/ 2V max. 100mA 60mA device set to factory settings device not set to factory settings (display only for approx. 10s after power-on) switching threshold set to factory settings > switching threshold in center ON LED flashing slowly switching threshold was reconfigured > switching threshold close to the mark Q/T LED flashing quickly teaching error In run mode: ON LED on ready Delay LED pulse stretching on/off L/D LED light/dark switching Q/T LED on mark detected Q/T LED flashing quickly device error In configuration mode: ON LED flashing quickly device is in configuration mode Delay LED off 2x analysis depth (response time 20μs) Delay LED on 1x analysis depth (response time 10μs) L/D LED off switching threshold in center L/D LED on switching threshold close to the mark Mechanical data Housing diecast zinc Optics cover glass Weight 300g Connection type M12 connector, stainless steel, 5-pin Environmental data Ambient temp. (operation/storage) -25 C +60 C/-40 C +70 C Protection class IP 67 Light source free group (in accordance with EN 62471) VDE safety class II Protective circuit 4) 2, 3 Standards applied IEC 60947-5-2 Certifications UL 508, C22.2 No.14-13 3) 5) Options Synchronous input PNP: Stop/Start measurement NPN: Stop/Start measurement Synchronization delay Teach input PNP: active / not active NPN: active/not active Teach delay Pulse stretching Device configuration Changeover switching threshold Changeover response time U B /0V or not connected 0V/U B or not connected 0.5ms U B /0V or not connected 0V/U B or not connected 10ms 20ms, can be activated via button continue to press the teach button during power-on see remarks see remarks 1) Interchangeable objective, available as accessory 2) Standard objective, state on delivery 3) For UL applications: for use in class 2 circuits according to NEC only 4) 2=polarity reversal protection, 3=short-circuit protection for all outputs 5) These proximity switches shall be used with UL Listed Cable assemblies rated 30V, 0.5A min, in the field installation, or equivalent (categories: CYJV/CYJV7 or PVVA/PVVA7) Remarks Approved purpose: This product may only be used by qualified personnel and must only be used for the approved purpose. This sensor is not a safety sensor and is not to be used for the protection of persons. With shiny objects, the sensor is to be mounted at an angle to the object surface. Device configuration: 1. Configuration mode is activated by holding down the teach button during power-on (ON LED flashes). 2. The analysis depth is changed over using the Delay button: Delay LED off = 2x analysis depth (response time 20μs) Delay LED on = 1x analysis depth (response time 10μs) 3. The switching threshold is changed over using the L/ D button: L/D LED off= Switching threshold in center L/D LED on= Switching threshold close to the mark 4. Press the teach button to end device configuration. 5. Back to factory settings: Simultaneously hold down the Delay button and the L/D button during poweron to reset the sensor to factory settings.
KRTM 20 High Resolution Multicolor Contrast Scanner Order guide The sensors listed here are preferred types; current information at Leuze webiste. Selection table Equipment Scanning range Order code KRTM 20M/P-20-6320-S12 Part No. 50113435 KRTM 20M/N-20-6320-S12 Part No. 50113436 KRTM 20M/C-20-6526-S12 Part No. 50113438 KRTM 20M/C-20-6626-S12 Part No. 50113437 KRTM 20M/P-20-3320-S12 Part No. 50114202 KRTM 20M/N-20-3320-S12 Part No. 50114201 12mm 20mm 50mm Light spot orientation vertical horizontal round Optical outlet front head Output wiring PNP NPN analogue current Other features static teach-in dynamic teach-in synchronous input KRTM 20M/P-50-6320-S12 Part No. 50116177 Function principle of the contrast scanner These contrast scanners are devices that can, with the aid of multiple transmitter colors (red, green, blue), distinguish between minimal gray levels (contrasts). By means of the automatic transmitter selection after a teach-in, the optimum functional safety for the respective contrast is determined and set by the device itself. As a result, any combination of marks or backgrounds can be detected with optimum functional safety. Through constant measurement and regulation of the emitted light, the devices operate with very good temperature stability. Re-teaching of the mark is, thus, no longer necessary. Each transmitter color consists of 4 LEDs. A longish light spot with four points is formed in the focal point. This very small, extremely bright light spot guarantees a high repeatability and positioning accuracy. For the case that the mark or background is not optimally printed, the light spot can be focused by slightly changing the scanning distance in such a way that a homogeneous, rectangular light spot is formed. With this teaching type, background and mark must be placed statically below the light spot. Using the synchronization input, the switching output can be activated or deactivated.
KRTM 20 Controls and indicators ON LED on ON LED flashing slowly ON LED flashing quickly ready / run mode device is not set to factory settings (Display only for approx. 10s after power-on) device is in configuration mode Q/T LED on Q/T LED flashing quickly mark detected teach error or device error Run mode: Delay LED Configuration mode: Delay LED off Delay LED on pulse stretching on /off 2x analysis depth (response time 20μs) 1x analysis depth (response time 10μs) Run mode: L/D LED Configuration mode: L/D LED off L/D LED on light/dark switching switching threshold in center switching threshold close to the mark Signal response during teach-in Static 2-point teach Label with marks 1. Teach point on background 2. Teach point on mark Receive signal Switching threshold in center Switching threshold near the mark Switching output for switching threshold in center Switching output for switching threshold near the mark Teach process The teach process is performed with the aid of the teach button or external teach lines. The two processes work in the same way. Operation Transmitter Indicator LED Position the light spot on the background Press the teach button approx. 0.5s or set the teach line to high level Position the light spot on the mark Briefly press teach button or teach line to low level Teaching error start new teaching process Red, green or blue light spot visible All colors are on White light spot visible All colors are on White light spot visible Changeover to red, green or blue Red, green or blue light spot visible All colors off Q/T, Delay and L/D LEDs flash Q/T, Delay and L/D LEDs flash ON LED on or flashes 3x Q/T LED on Q/T LED flashing > error ON LED on Q/T LED flashing > error Calibration - analog output 1 10mA This is an uncalibrated measurement value. The current value that is output is proportional to the last contrast ascertained by means of teach-in. For rough calibration of the analog output, a teach-in with the following sequence is recommended. 1. Teach point on background > on white paper. 2. Teach point on mark > without object (into open space).
KRTM 20 Contrast scanner RGB Dimensioned drawing 12mm 20mm 50mm 12-30 V DC 25 khz Freely programmable via protocol interface Freely adjustable transmitter colour, amplification and switching threshold Response time digital/analogue: 20µs/ 6.25µs Analogue and digital output Parameterisation input U L US C LISTED A Light spot orientation vertical B Optical axis C M5/5.5mm deep D Scanning range E Front F Head Electrical connection We reserve the right to make changes fmt_krt10gb.fm IEC 60947... IEC 60947... IP 67 Accessories: (available separately) M12 connectors, 5-pin (KD ) Ready-made cables (K-D ) Interchangeable objectives Tool for changing objectives
KRTM 20 Specifications Optical data Scanning range with objective 1 (accessory) 12mm ± 1mm Scanning range with objective 2 20mm ± 2mm Scanning range with objective 3 (accessory) 50mm ± 5mm Light spot dimensions with objective 1 3.0mmx1.0mm Light spot dimensions with objective 2 4.0mmx1.2mm Light spot dimensions with objective 3 10.0mmx2.0mm Light spot orientation vertical Light source LEDs (red, green, blue) Timing Digital switching frequency max. 25kHz Response time digital/analogue min. 20µs/6.25µs Delay before start-up 250ms Electrical data Operating voltage U B 12 30VDC (incl. residual ripple) Residual ripple 15% of U B Switching output PNP Function characteristics light switching Analogue output 1 10mA Signal voltage high/low (U B -2V)/ 2V Output current max. 100mA Bias current 60mA Indicators LED green 1 ON "ready" LED green 2 without function LED green 3 without function LED yellow Q/T "object detected" LED yellow flashing Q/T "device error, teach error" Keyboard Delay button locked (see remarks) L/D button locked (see remarks) Teach button locked Mechanical data Housing diecast zinc Optics cover glass Weight 300g Connection type M12 connector, stainless steel, 5-pin Environmental data Ambient temp. (operation/storage) -25 C +60 C/-40 C +70 C Protection class IP 67 LED class 1 (acc. to EN 60825-1) VDE safety class II Protective circuit 1) 2, 3 Standards applied IEC 60947-5-2 Options Input for parameterisation PNP: active / not active U B /0V or not connected 1) 2=polarity reversal protection, 3=short-circuit protection for all outputs Tables Diagrams Order guide See section 4. Preferred types Remarks With shiny objects, the sensor is to be mounted at an angle to the object surface. The objectives and objective covers must not be removed. Keyboard is disabled. Button LEDs must be "OFF". L/D and Delay buttons - KRTM 20-0001-S12: Dynamic keyboard locking (operable for approx. 10s after power-on). - KRTM 20-0002-S12: Static keyboard locking (not operable).
KRTM 20 1. Function principle of the contrast scanner This contrast scanner is a device which, with the aid of multiple transmitter colours (red, green, blue), can differentiate between extremely small differences in contrast (grey tones). A protocol interface allows the transmitter colour, amplification and switching threshold to be freely programmed. Additionally, all internal values (including analogue value) can be read back via this protocol interface. As a result, the primary control can influence all sensor properties and also read back the actual measurement values in digital form. The switching threshold can also be freely adapted. Once parameterisation has been completed, the sensor functions as a standard contrast scanner and outputs the measurement values via the analogue output and switching output. Each transmitter colour consists of 4 LEDs. A longish light spot with four points is formed in the focal point. This very small, extremely bright light spot guarantees a high repeatability and positioning accuracy. For the case that the marker or background is not optimally printed, the light spot can be focused by slightly changing the scanning distance in such a way that a homogeneous, rectangular light spot is formed. 2. Controls and indicators LED ON (green) for "Ready" LED Q/T (yellow) for "Object detected" and "Error display" (flashing) LED Delay (green) without function (LED=OFF) LED L/D (green) without function (LED=OFF) 3. Signal response Data pulses: 3ms = 1, 6ms = 0 (High level) Pause = 3ms (Low level) Adjustable values: Switching threshold: 0 127 (Bit0 Bit6) Transmitter colour: 1 3 (Bit0 Bit1), 1 = Red, 2 = Green, 3 = Blue Amplification level: 0 8 (Bit0 Bit7) Analogue value: 0 255 (Bit0 Bit7) Parameterisation of switching threshold and transmitter colour: A Start B Switching threshold C Colour = blue D Pause E Request F Amplification level 7 Request for switching threshold:
KRTM 20 Acknowledgement of switching threshold and transmitter colour: Parameterisation of amplification level: A Start B Switching threshold C Colour = blue D Pause E Request F Amplification level = 7 G Analogue value = 129 Request for amplification level and analogue value: Acknowledgement of amplification level and analogue value: 4. Preferred types Selection table Equipment Scanning range Additional types on request Order code KRTM 20M/V-20-0001-S12 Part No. 500 35674 KRTM 20M/V-20-0002-S12 Part No. 501 09183 12mm 20mm 50mm Transmitter colour RGB green Light spot orientation vertical horizontal round Optical outlet front head Output wiring PNP NPN analogue current Other features programmable via protocol interface static keyboard locking dynamic keyboard locking
Leuze electronic KRTM 20 Cut-Marking System Dimensioned drawing 20mm 12-30 V DC 25 khz Static teach-in procedure Can store 128 data records Response time digital/analogue: 20µs/ 6.25µs 3 transmitters in the colours red, green, blue Programming via teach-in button We reserve the right to make changes fmt_krt08e.fm ISO 9001 Accessories: (available separately) U L US C LISTED IEC 60947... IEC 60947... IP 67 M12 connectors, 5-pin (KD ) Ready-made cables (K-D ) Interchangeable objectives Tool for changing objectives A Light spot orientation vertical B Optical axis C M5/5.5mm deep D Scanning range E Front F Head Electrical connection DSA Data set acknowledgement (Data Set Acknowledge) DSS Data set selection (Data Set Select)
Leuze electronic KRTM 20 Specifications Optical data Scanning range with objective 1 (accessory) 12mm ± 1mm Scanning range with objective 2 20mm ± 2mm Scanning range with objective 3 (accessory) 50mm ± 5mm Light spot dimensions with objective 1 3.0mmx1.0mm Light spot dimensions with objective 2 4.0mmx1.2mm Light spot dimensions with objective 3 10.0mmx2.0mm Light spot orientation vertical Light source LEDs (red, green, blue) Timing Digital switching frequency max. 25kHz Response time digital/analogue min. 20µs/6.25µs Delay before start-up 250ms Electrical data Operating voltage U B 12 30VDC (incl. residual ripple) Residual ripple 15% of U B Switching output PNP Function characteristics light or dark switching, reversible via button Analogue output 1 10mA Signal voltage high/low (U B -2V)/ 2V Output current max. 100mA Bias current 60mA Indicators LED green 1 ON "ready" LED green 2 "ON/OFF" delay LED green 3 L/D "light/dark switching" LED yellow Q/T "object detected" LED yellow flashing Q/T "device error, teach error" Keyboard Release via bit 9 of the data protocol Mechanical data Housing diecast zinc Optics cover glass Weight 300g Connection type M12 connector, stainless steel, 5-pin Environmental data Ambient temp. (operation/storage) -25 C +60 C/-40 C +70 C Protection class IP 67 LED class 1 (acc. to EN 60825-1) VDE safety class II Protective circuit 1) 2, 3 Standards applied IEC 60947-5-2 Options Input for data-record selection PNP: active / not active U B /0V or not connected Pulse stretching 20ms, can be activated via button 1) 2=polarity reversal protection, 3=short-circuit protection for all outputs Tables Diagrams Order guide See section 5. Preferred types Remarks With shiny objects, the sensor is to be mounted at an angle to the object surface. The objectives and objective covers must not be removed.
Leuze electronic KRTM 20 1. Method of function of the cut-marking system With this contrast scanning system, 128 data records can be stored in the sensor in zero-voltage-safe memory. A simple and asynchronous protocol is used for data-record selection and assignment. The transmission rate is specified by the controller by means of the start-bit pulse width. As a result, the contrast scanning system can work together with any controller system. A standardised serial interface, e.g. RS 232, is not required as communication is realised via standard PNP signals. Adjustment is performed by means of static teach-in via the keyboard, i.e. background and mark must be statically positioned below the light spot. Contrast detection is achieved with the aid of multiple transmitter colours (red, green, blue). This allows the detection of minimal differences in contrast (grey tones). Each transmitter colour consists of 4 LEDs. A longish light spot with four points is formed in the focal point. This very small, extremely bright light spot guarantees a high repeatability and positioning accuracy. For the case that the marker or background is not optimally printed, the light spot can be focused by slightly changing the scanning distance in such a way that a homogeneous, rectangular light spot is formed. 2. Controls and indicators LED ON (green) for "Ready" LED Q/T (yellow) for "Object detected" and "Error display" (flashing) LED Delay (green) for pulse stretching 20ms (LED=ON) LED L/D (green) for dark switching (LED=ON) 3. Protocol procedure for selecting a data record - 1. The sensor system determines the period length T (T = n*10ms) from the start bit. The start bit must be a multiple of 10ms. Maximum period duration T max =200ms. - 2. A pause lasting 3T follows the start bit. - 3. Transmission of bit 9... bit 0 (evaluation of the level in the middle of the period) - 4. Acknowledgement of the data record following reception of bit 0. The sensor system repeats the entire protocol (start bit + 3T + bit 9... bit 0) at the switching output. - 5. During data-record selection, mark detection is not active. Data-record selection by the controller via pin 5 and acknowledgement of the data record by the sensor system via pin 4 (switching output Q): Bit 9 - button lock (1=all buttons disabled, 0=all buttons enabled) Bit 8 - no function Bit 7 - no function Bit 6 - most significant bit of the data-record number (1=high level, 0=low level) Bit 0 - least significant bit of the data-record number (1=high level, 0=low level) Start bit
4. Teach process The teach process is performed with the aid of the Teach button. The keyboard is enabled via bit 9. Leuze electronic Operation Transmitter Indicator LED Position the light spot on the background Press the Teach button approx. 1s Position the light spot on the marker Press the Teach button approx. 1s Teaching error start new teaching process Red, green or blue light spot visible All colours are on White light spot visible All colours are on White light spot visible Changeover to red, green or blue Red, green or blue light spot visible All colours off All LEDs flash All LEDs flash KRTM 20 ON (green) illuminated Q/T (yellow) off Q/T (yellow) flashing (error) ON (green) illuminated Q/T (yellow) flashing (error) SSignal response during teach-in Label Teach button Switching threshold Received signal LED Q/T Switching output with light switching Switching output with dark switching 5. Preferred types Selection table Equipment Scanning range Order code KRTM 20M/V-20-0004-S12 Part No. 500 41007 12mm 20mm 50mm Transmitter colour RGB green Light spot orientation vertical horizontal round Optical outlet front head Output wiring PNP NPN analogue current Other features cut-marking system can store 128 data records static teach-in teach-in, background synchronous input
KRTM 20M/N-20-0084-S12 Cut-marking system Dimensioned drawing en 02-2012/10 50118529 20mm 12-30 V DC 80 khz Dynamic teach-in process Can store 128 data records Programming via teach-in via button or teach input (pin 5) Remote control after teach-in Small, round light spot (1 of 4 LEDs) We reserve the right to make changes DS_KRTM20MN200084S12_en_50118529.fm IEC 60947... IEC 60947... IP 67 Accessories: (available separately) M12 connectors, 5-pin (KD ) Ready-made cables (K-D ) Interchangeable objectives Tool for changing objectives A Light spot orientation vertical B Optical axis C M5/5.5mm deep D Scanning range E Front F Head Electrical connection DSA Data set acknowledgment (Data Set Acknowledge) DSS Data set selection (Data Set Select)
KRTM 20M/N-20-0084-S12 Specifications Optical data Scanning range with objective 1 (accessory) 11mm (in focus mode) Scanning range with objective 2 18mm (in focus mode) Scanning range with objective 3 (accessory) 44mm (in focus mode) Light spot dimensions with objective 1 Ø 0.5mm Light spot dimensions with objective 2 Ø 0.6mm Light spot dimensions with objective 3 Ø 1.0mm Light source LEDs (red, green, blue) Timing Clock frequency 160kHz Switching frequency 80kHz Analysis depth 1 Response time 6.75μs Jitter 6.75μs Delay before start-up 250ms Electrical data Operating voltage U B 12 30VDC (incl. residual ripple) Residual ripple 15% of U B Switching output NPN Function 1. Operational function light or dark switching, reversible via button 2. Remote control 2Hz pulse sequence (after faulty teach-in via pin 5 or button) Analog output 1 10mA Signal voltage high/low (U B -2V)/ 2V Output current max. 100mA Open-circuit current 100mA Indicators LED green 1 ON "ready" LED green 2 "ON/OFF" delay LED green 3 L/D "light/dark switching" Yellow LED Q/T "object detected" Yellow LED, flashing Q/T "device error, teach error" Keyboard Release via bit 9 of the data protocol Mechanical data Housing diecast zinc Optics cover glass Weight 300g Connection type M12 connector, stainless steel, 5-pin Environmental data Ambient temp. (operation/storage) -25 C +60 C/-40 C +70 C Protection class IP 67 Light source exempt group (in acc. with EN 62471) VDE safety class II Protective circuit 1) 2, 3 Standards applied IEC 60947-5-2 Options Input for data-record selection NPN: active/not active 0V/U B or not connected Teach-in input NPN: active/not active 0V/U B or not connected (for function see item 4) Synchr. input NPN: active/not active 0V/U B or not connected (for function see item 4) Pulse stretching 10ms, can be activated via button Remote control 2Hz on switching output pin 4 (after teaching error) acknowledgement of the teaching error, see pt.4. Teach event Compensation active temperature and LED compensation through reference receiver 1) 2=polarity reversal protection, 3=short-circuit protection for all outputs Order guide See section 5. Preferred types Tables Diagrams Remarks Approved purpose: This product may only be used by qualified personnel and must only be used for the approved purpose. This sensor is not a safety sensor and is not to be used for the protection of persons. With shiny objects, the sensor is to be mounted at an angle to the object surface. The objectives and objective covers must not be removed. This data sheet applies for device firmware with production date after 1210xxxxxxx (year=2012, month=october).
KRTM 20M/N-20-0084-S12 1. Method of function of the cut-marking system With this contrast scanning system, 128 data records can be stored in the sensor in zero-voltage-safe memory. A simple and asynchronous protocol is used for data-record selection and assignment. The transmission rate is specified by the controller by means of the start-bit pulse width. As a result, the contrast scanning system can work together with any controller system. A standardized serial interface, e.g. RS 232, is not required as communication is realized via standard NPN signals. Setting is performed with dynamic teach-in via the keyboard or teach input (pin 5). When teach-in starts, a measurement window opens and closes when teach-in ends. The minimum and maximum values are determined and the switching threshold is set in the center. Contrast detection is achieved with the aid of multiple transmitter colors (red, green, blue). This allows the detection of minimal differences in contrast (gray tones). Each transmitter color consists of 1 LED. A round light spot is formed in the focal point. This very small, extremely bright light spot guarantees a high repeatability and positioning accuracy. The system features a reference receiver which ensures temperature and LED compensation. This leads to a very stable longterm behavior. The contrast scanners are not calibrated against reference contrasts. 2. Controls and indicators LED ON (green) for "Ready" LED Q/T (yellow) for "Object detected" and "Error display" (flashing) LED delay (green) for pulse stretching 10ms (LED=ON) LED L/D (green) for dark switching (LED=ON) In the factory settings, the keyboard is enabled. 3. Protocol procedure for selecting a data record - 1. The sensor system determines the period length T (T = n*5ms) from the start bit. The start bit must be a multiple of 5ms. Maximum period duration T max =100ms. - 2. A pause lasting 3T follows the start bit. - 3. Transmission of bit 9... bit 0 (evaluation of the level in the middle of the period). - 4. Acknowledgment of the data record following reception of bit 0. The sensor system repeats the entire protocol (start bit + 3T + bit 9... bit 0) at the switching output. - 5. During data-record selection, mark detection is not active. Data-record selection by the controller via pin 5 and acknowledgment of the data record by the sensor system via pin 4 (switching output Q): Bit 9 - button lock (0V = all buttons disabled, U B = all buttons enabled 1) ) Bit 8 - no function Bit 7 - no function Bit 6 - most significant bit of the data-record number (0V = active, U B = inactive) Bit 0 - least significant bit of the data-record number (0V = active, U B = inactive) Start bit 1) Factory setting
4. Teach process The teach event is performed with the aid of the teach button or the teach input (pin 5). Teach-in via teach button The keyboard is enabled via bit 9. Operation Transmitter Indicator LED Position the light spot on the background Press the teach button approx. 0.5s Move the light spot onto or over the mark Press the teach button approx. 0.5s Teaching error start new teaching process Teach-in via teach input (pin 5) Pulse> 200ms starts the dynamic teach-in. Red, green or blue light spot visible All colors are on White light spot visible All colors are on White light spot visible Changeover to red, green or blue Red, green or blue light spot visible All colors off KRTM 20M/N-20-0084-S12 All LEDs flash All LEDs flash ON (green) illuminated Q/T (yellow) off Q/T (yellow) flashing (error) ON (green) illuminated Q/T (yellow) flashing (error) Pulse > 200ms opens the teach window Rising edge closes the teach window Acknowledgment of a teaching error after teach-in (pin 5) One pulse <2ms acknowledges the teaching error and activates the last valid teach values. 5. Preferred types Selection table Equipment Pulse < 2ms Order code KRTM 20M/N-20-0084-S12 Part no. 50119540 Scanning range (in focus mode) 11mm 18mm 44mm Transmitter color RGB green Light spot orientation vertical horizontal round Optical outlet Front Head Output wiring PNP NPN analogue current Other features cut-marking system can store 128 data records dynamic teach-in teach-in, background synchronous input