User Manual - Sensor Line
Contents
1. Ww J RARRAAR Ieee s D ess LL j ee5 ce ljeees CH eee THRS ga THR2 ga THRI I CH ee LI GL ee E Ri Ti N CH W a eo E m Bg fa D Put og rl Channel 3 Channel 2 Channel 1 Trigger Threshold With the fibre optic receptacles pointing up the headers for trigger threshold selection are located above each channel s measuring pins see Section 2 1 4 and labeled THRT THR2 and THR3 The trigger threshold of each channel is determined by two jumpers placed as shown below Jumpers Trigger Threshold lease 0 3 I ERE 0 5 se 1 0 ir 1 5 17 seNs R LINE 4 3 Selection Of Minimum Trigger Pulse Duration o BEBEBE N Zt e CO UN HAA AAA 9 HHBHEBH2. Tl oJ AAAAAAA ARA b s o WHEEHEE IF LI Six fibre optic SMA 905 FSMA receptacles The feeder fibres of each channel can be connected in any order BESB seNs R LINE 3 Output Circuitry 3 1 On Board Pre Wiring The MA 310 output circuitry is intended to facilitate interfacing of the unit to the host system by minimizing the requirements for external wiring In a majority of cases this can be accom plished using wires only without needing additional material such as extra terminal strips and So on o V 1k 1k 1k JP 1 JP 2 JP 3 68V 68V 68V o EI o E2 o ES S Fig 1 MA 310 pre wired output circuit Fig 1 shows the general arrangement The signals are transmitted via optocouplers which have an NPN phototransistors as their output stages Collectors and emitters of these phototransistors are directly connected to output terminals designated C and E In addition the
3. ARAAAAA o KKK Amie r ae D N E ELLI 1 5 i omy aH Nue e e v S 2666 bai e e zi BESEBSEB WW XP LI ARARAARA WW HPHEEHHEE mj d E de d d dad Channel 3 Channel 2 Channel 1 Trigger Pulse Duration With the fibre optic receptacles pointing up the headers for the selection of trigger pulse duration are located to the left of each channel s measuring pins see Section 2 1 4 and labeled PW1 PW2 and PWS The minimum trigger pulse duration of each channel is determined by one jumper placed as shown below Jumper Trigger Pulse min No 10 1 ms n 22 ms N No 10 47 ms 18 seNs R LINE 5 Getting Started 5 1 Installation 1 Fix the interface with screws and spacers Take care that any vibrations or shocks will not affect the board and in specific the fiber optic connectors 2 Remove the safety caps from LED transmitter and photodetector 3 Connect the sensor SMA connectors with trans
4. 7 Vana2 Analog Load Signal Channel 2 8 Vmon2 Monitor Signal Channel 2 9 Vtrg2 Trigger Signal Channel 2 10 Vref2 Reference Voltage Channel 2 11 Vana3 Analog Load Signal Channel 3 12 Vmon3 Monitor Signal Channel 3 13 Vtrg3 Trigger Signal Channel 3 14 Vref3 Reference Voltage Channel 3 seNs R LINE 2 1 4 Measuring Pins ei SS E Le ta Eg MEME LJ LEE LL R1 TL eo e ee P c P E oo biz OO 2G But og ER PE om d D m l ICH ldo aen erem mi GNO Pin Label Signal Description 1 A3 Vana2 Analog Load Signal Channel 3 2 M3 Vmon2 Monitor Signal Channel 3 3 R3 Vref2 Reference Voltage Channel 3 4 T3 Vtrg2 Trigger Signal Channel 3 5 A2 Vana2 Analog Load Signal Channel 2 6 M2 Vmon2 Monitor Signal Channel 2 7 R2 Vref2 Reference Voltage Channel 2 8 T2 Vtrg2 Trigger Signal Channel 2 9 A1 Vana1 Analog Load Signal Channel 1 10 M1 Vmon1 Monitor Signal Channel 1 11 R1 Vref1 Reference Voltage Channel 1 12 T1 Vtrg1 Trigger Signal Channel 1 13 GND GND AGND Board Analog Ground 2 2 Optical Channel 3 Channel 2 Channel 1 Transmitter Receiver Transmitter Receiver Transmitter Receiver
5. Trigger activity and sensor failure are signaled by individual LEDs for every channel 1 2 Features Dynamic three channel interface for detection of light power changes caused by activation of fiber optic load sensors Optocoupler digital outputs Adjustable trigger threshold 0 396 0 5 1 and 1 5 relative light drop Adjustable minimum trigger pulse duration 1ms 22ms and 47ms Trigger indication LED for each channel Error indication LED for each channel Reverse power protection Pre wired output circuits configurable through jumper settings RoHS conform seNs R LINE 1 3 Dimensions D 390 329 319 EI E 2 E 5 amp a S iy e T K x IE ie E 3 e e OQ 9 0 15 3 8 mm 2 5 63 5 mm 0 25 6 35 mm Not to scale 3 5 88 9 mm 3 66 93 mm Component Height 11 mm 0 44 maximum inside of board perimeter 15 mm 0 597 connector plug Board Thickness 0 17 mm 0 067 Component Lead Length 2 mm 0 08 maximum Minimum clearance of mounting holes to adjacent traces 2 5 mm 0 1 Note Connector plug increases board width by 10 mm 0 4 not including space for wire terminations ore seNs R LINE 2 Connections 2 1 Electrical 2 1 1 Power Supply 4 pin screw terminal or 4 pin header 0 ep 1
6. incorporated into any external circuitry This causes some effort but offers a maximum of versatility 12 24V GND Fig 6 External pull up resistor with common Fig 7 External pull up resistor with separate board and output supply board and output supply 12 24V GND Out Fig 8 External pull down resistor with Fig 9 External pull down resistor with common board and output supply separate board and output supply 12 seNs R LINE 12 24V 12 24V GND ip GND _J AGND Out DGND Fig 10 Non inverted output level adjustment Fig 11 Non inverted output level adjustment with common board and output supply with separate board and output supply R R Yu cu Vaen 2 Vg 1V TN R R Me RR Viow 9 GND V 0 DGND vec gt 12 24V Fig 12 Driving a TTL gate with common Fig 13 Driving a TTL gate with separate board and output supply board and output supply Note Open TTL inputs behave as if connected to high level The above option applies to such inputs only Floating e g CMOS inputs must be driven according to Fig 6 to 9 12 24V GND vec q 12 24V Fig 14 Driving a LED or an optocoupler with Fig 15 Driving a LED or an optocoupler with common board and output supply separate board and output supply 13 seNs R LINE 3 2 2 JP Installed see Fig 3 The circuits given below differ from the corre
7. 2 3 toh A a Xeeeseece IL 1906909000909 5 CEA Terminal Pin Signal Description 0 12 24 VDC Board Supply Voltage 1 GND AGND Board Analog Ground 2 5 24 VDC Output Supply Voltage 3 DGND Output Digital Ground seNs R LINE 2 1 2 Main Connector 12 pin pluggable screw terminal GER kafe m S 39eeesese IN f 18 8006080 5 CIE C2E CJE Terminal Label Signal Description 1 C 1 C1 Collector Output of Channel 1 2 1 E E1 Emitter Output of Channel 1 3 C 2 C2 Collector Output of Channel 2 4 2 E E2 Emitter Output of Channel 2 5 C 3 C3 Collector Output of Channel 3 6 3 E E3 Emitter Output of Channel 3 7 to 12 NC Not connected seNs R LINE 2 1 3 Service Connector 14 pin header a oe CE D E Ll ee Ge Hr RE TL P B E CT 27 But E Lm em 3 ICH im a d ILILLL E ie eecceco Ml Q F4 o Pin Signal Description 1 GND AGND Board Analog Ground 2 GND AGND Board Analog Ground 3 Vana1 Analog Load Signal Channel 1 4 Vmon1 Monitor Signal Channel 1 5 Vtrg1 Trigger Signal Channel 1 6 Vref1 Reference Voltage Channel 1
8. 3 2 3 JP Installed me Ena 14 3 2 4 Both Jumpers Installed 15 4 ge 16 4 1 On Board Output Pre Wiring un 16 42 Selection Of Trigger Thresh ld 2 uuu ne na 17 4 3 Selection Of Minimum Trigger Pulse Duration 18 5 Getting Startad EE 19 5 1 Installation EE 19 BZ E LEE 19 6 EENEG 20 seNs R LINE 1 General The SL MA 310 Optical Transmittance Analyzer OTA is an electronic interface that operates three fiber optic load sensors The unit serves as an interface between fiber optic sensors and a processing unit on system level It should be installed in a weather proof road side cabinet 1 1 Function The MA 310 responds to the optical sensor signal in a dynamic AC coupled manner i e the electrical signal delivered when a load is applied to the sensor will decrease to zero as the load continues to be applied At a selectable threshold a digital trigger signal is generated for each channel This signal can be forced to remain active for an selectable length of time Aside from these selections the interface does not require any further adjustment The output trigger signals are transmitted via optocouplers which behave similar to relays allowing the use of a variety of output circuitry In addition there is some output circuitry implemented on the board which can by configured by means of jumpers thus minimizing the need for external wiring while still maintaining a maximum of output versatility
9. SENS R LINE Optical Transmittance Analyzer SL MA 310 E we Tei UN46e UN4617 UN4621 st i dei ae x ae et TS e 5 uns EERE A e User Manual Revision 2 0 2012 07 Plamper SENS JR LINE Sensor Line Gesellschaft f r optoelektronische Sensoren mbH Carl Poellath Str 19 D 86259 Schrobenhausen Germany Tel 49 0 8252 8943 0 Fax 49 0 8252 8943 11 Email info sensorline de www sensorline de Sensor Line Gesellschaft f r optoelektronische Sensoren mbH Carl Poellath Str 19 D 86529 Schrobenhausen Tel 49 0 8252 8943 0 Fax 49 0 8252 8943 11 Email sensorline sensorline de HP www sensorline de seNs R LINE Table of Contents 1 erc 3 Mel sBUNCUO Mi dascesvees Sas eee e aa du M 3 1 2 EOS ian ttov E EE eens es 3 1 3 Dimensions eese in next nra ka eu a YER RENE ER E Ege yu e EY yK Pob EEN 4 2 Connections ecean ae E eer 5 2 1 Electrical eee en 5 2 1 1 Power Supply 4 pin screw terminal or 4 pin header 5 2 1 2 Main Connector 12 pin pluggable screw Terminal 6 2 1 3 Service Connector 14 pin header 7 2 1 4 Measuring PinS MIO 8 2 2 EE 8 3 Qutput Circuitry M M 9 31 On Board Pre sino 9 32 Wining Kan TE 12 3 2 1 No Jumpers Installed nennen nemen 12 322 JP Installed WE 14
10. e optocoupler then acts as a switch between Terminal C and ground plus ground is available at Terminal E 10 seNs R LINE 1k ae o o E pvcc DGND Fig 4 Jumper JP installed Jumper JP removed Terminal V powered Voltage source with 1kQ series resistor at Terminal E When Jumper JP is installed instead of JP and Terminal V is connected to some voltage DVCC according to Fig 4 then a load can be switched via the optocoupler with a series resistance of 1kQ DVCC D DGND Fig 5 Both jumpers installed Terminal V grounded Terminal V powered Terminal E grounded inverted voltage output at Terminal C Installation of both jumpers grounding of Terminal V and connection of a voltage source to Terminal V as shown in Fig 5 establishes a true voltage output at Terminals C and E which can drive floating inputs 11 seNs R LINE 3 2 Wiring Examples Configuration of the MA 310 output can be done with or without a separate output power supply If one is present it is recommendable to introduce a separate output ground as well This may reduce interference of the connected circuitry with the analog signal porcessing significantly 3 2 4 No Jumpers Installed see Fig 2 It is obvious that when neither of the jumpers is installed it makes no sense to connect anything to the V or V terminals The on board pre wiring is disabled in this case and the optocoupler can be
11. er volt of V to Terminal E The external resistor is only needed if this is too much Also with a separate output supply the current can be adjusted via V thus also rendering the external resistor unnecessary 3 2 4 Both Jumpers Installed see Fig 5 Installing both jumpers allows for creating a voltage output as opposed to a switch without the need of any external components 12 24V GND Fig 24 Simple voltage output with common board and output supply VCC q 12 24V Fig 25 Simple voltage output with separate board and output supply 248 seNs R LINE 4 Configuration 4 1 On Board Output Pre Wiring JP Channel 1 JP Channel 2 JP Channel 3 JP Channel 1 JP Channel 2 JP Channel 3 AILLI a EE CIE C2E CJE The jumpers of the on board output pre wiring are accepted by a 2x8 pin header With the fibre optic receptacles pointing up this header is located immediately above the main output connector The different output configurations described in Section 3 are established as shown below Jumpers Outputs configured according to IHR Fig 2 Section 3 2 1 a AAA L Fig 3 Section 3 2 2 a Fig 4 Section 3 2 3 HIHI He Fig 5 Section 3 2 4 16 seNs R LINE 4 2 Selection Of Trigger Threshold Jl Wow o ll nu Jl uon H uw d S a 1
12. mitters and photodetectors of each chan nel Fasten properly the sensor SMA connectors with transmitters and photo detectors in order to obtain smallest attenuation but avoid any violence especially do not use pliers The connectors of transmitter and photodetector of each channel may be interchanged 4 Connect the power supply or power supplies to the respective terminals 5 Connect the signal output terminals to your system 5 2 Test 1 Switch the power supply on 2 Drive across the embedded sensors and monitor the trigger signals by watching the Trigger LEDs 3 Test the sensor failure signal of each channel by disconnecting one of its fiber connectors The respective Error LED must come on within few seconds 19 seNs R LINE 6 Specifications Board Supply Voltage Board Supply Current continuous Output Supply Voltage Rating of Optocouplers Trigger Thresholds Minimum Trigger Pulse Duration Sensor Attenuation for MA 310 RED Sensor Attenuation for MA 310 IR Speed Range Feeder Length Certification LED Risk Group 12 to 24 VDC 400 mA 5 to 24 VDC 60V 25mA 0 396 0 596 1 1 5 of light transmittance drop 1 ms 22 ms 47 ms 3 23 dB red transmitter 3 33 dB infrared transmitter 1 to 250 km h up to 250 meters RoHS RG 0 safe According to DIN EN 62471 Please note In spite of the official classification SENSOR LINE recommends to avoid staring i
13. nto the transmitter for longer periods regardless whether light is visible or not Important notice All the information contained herein is believed to be accurate and reliable However SENSOR LINE assumes no responsibility for its use or for any infringements of patents or other rights of third parties that may result from its use No license is granted by implication or otherwise under any patent rights of SENSOR LINE GmbH SENSOR LINE GmbH SHALL NOT BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSE QUENTIAL DAMAGES RELATED TO THE USE OF THIS PRODUCT All rights reserved Reproduction or adaptation of any part of this documentation without permission of the copyright owner is unlawful 20
14. re are two more terminals provided The first one V is connected via a 1kQ resistor and a jumper JP to the collector of each optocoupler The second one V is connected to its emitter via a jumper JP only The V and V terminals are common for all channels whereas each channel has its own jumpers and resistors This allows for a variety of output configurations Please mind the Zener diodes which are omitted in the following drawings They protect the optocouplers not only against over voltage but also rather aggressively against reverse polarity So whenever connecting a voltage source correct polarity should be observed for its own sake seNs R LINE o V 1k JP o C sC A OC 2 A i NEM E gt E JP Fig 2 Both jumpers removed Simple switch between Terminals C and E When according to Fig 2 none of both jumpers of a channel is installed collector and emitter of the output transistor are only accessible via terminals C and E The optocoupler then acts as a simple switch where of course polarity must be obeyed current can only flow into Terminal C and out of Terminal E o Ma JP DGND DGND Fig 3 Jumper JP installed Terminal V grounded Terminal E grounded Switch between Terminal C and ground When Jumper JP is installed and Terminal V is grounded as shown in Fig 3 the switch also becomes grounded at its negative connection In other words th
15. sponding circuits in section 3 2 1 only in that the ground wires are not connected directly to the optocoupler s emitter but via the V terminal and the JP jumper instead However since the V terminal is common there is only one wire needed to establish this connection for all channels 12 24V GND Out Fig 16 External pull up resistor with common board and output supply Fig 18 Driving a TTL gate with common board and output supply VCC 4p 12 24V Fig 17 External pull up resistor with separate board and output supply m LI Fig 19 Driving a TTL gate with separate board and output supply Note Open TTL inputs behave as if connected to high level The above option applies to such inputs only Floating e g CMOS inputs must be driven according to Fig 16 to 17 3 2 3 JP Installed see Fig 4 12 24V GND Out Fig 20 Output level adjustment with common board and output supply Vig VV 1V High R 1kQ cc Viow 0 GND VCC 9 12 24V Fig 21 Output level adjustment with separate board and output supply AR er aly FS RIKO WW Vio sf DGND 14 seNs R LINE Fig 22 Driving a LED or an optocoupler with common board and output supply 12 24V Fig 23 Driving a LED or an optocoupler with separate board and output supply Note The internal 1k resistor will deliver about 1 mA of current p
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