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DSP-50 User Manual 

Page 27 of 27

 

setting  may  be  inadequate.    Adjust  the  sensitivity  one  level  higher  and  recheck  the  detector  for  proper 
detection. 

If  the  channel  sensitivity  is  set  to  9  and  the  red  LED  still  does  not  come  on  and  you  have  another  operating 
detector in the  same  box, swap the loops between a working detector and a failing detector.  If the  problem 
follows the loop the loop is the problem.  If it stays in the same detector, replace the detector. 

Содержание DSP-50

Страница 1: ...Pros Who Know Trust Diablo User Manual DSP 50 Vehicle Detector ...

Страница 2: ...Presence DIP Switch 7 11 Output B Selection DIP Switches 5 and 6 12 Normal Sensitivity Sensitivity Boost DIP Switch 4 14 Fail Safe Fail Secure DIP Switch 3 14 Delay Extension DIP Switches 1 and 2 15 Indicators 16 5 Installation 20 Detector Installation 20 Loop Installation 20 6 Configuration 23 Wiring 23 7 Troubleshooting 24 No Power LED 24 Power LED Flashes Slowly 1 Hz 24 Power LED Flashes Quickl...

Страница 3: ...uts with No Delay or Extension 13 Figure 3 Outputs with Delay 13 Figure 4 Outputs with Extension 14 Figure 5 Power LED States 17 Figure 6 Detect A LED States 18 Figure 7 Detect B LED States 19 Figure 8 Loop Installation 22 Figure 9 Saw Cut for Home Run Exit and Chiseled Corner for Home Run Exit 22 ...

Страница 4: ...e 8 bit microcontroller that does not skimp on performance The DSP 50 detector has a small footprint and was designed to retrofit into many existing locations that may require a detector upgrade This allows maintenance personnel to carry only one detector to meet most if not all of their vehicle detection needs The detector uses a 10 pin Molex connector for its connections and has three solid stat...

Страница 5: ...se Output 250ms 15ms Inductive Loop Response Time Response time is dependent on the sensitivity selected Setting Response Time Setting Response Time 0 70ms 10ms 5 70ms 10ms 1 70ms 10ms 6 140ms 20ms 2 70ms 10ms 7 140ms 20ms 3 70ms 10ms 8 140ms 20ms 4 70ms 10ms 9 140ms 20ms Mini Loop Response Time Response time is dependent on the sensitivity selected Setting Response Time Setting Response Time 0 13...

Страница 6: ...ages One wide range power version 10 volts to 30 volts DC Solid State Output Rating Maximum Output Current 200 milliamps Maximum Pull Up Voltage 40 volts Maximum Voltage Drop Across Active Output 0 3 volts Current Draw 10 volts to 30 volts AC or DC 75 milliamps maximum Environmental Data Operating Temperature 35 F to 165 F 37 C to 74 C Storage Temperature 40 F to 176 F 40 C to 80 C Humidity Up to ...

Страница 7: ... 7 of 27 DSP50_MAN_A Mechanical Data Mounting Position Any Housing Material Lexan Housing Size 2 375 inches High x 2 240 inches Wide x 860 inches Deep 60 33 mm High x 56 90 mm Wide x 21 84 mm Deep Figure 1 Physical Dimensions ...

Страница 8: ...ity issue is handled by the operator if the detector plugs directly in to the operator If using an adapter board like the RK 1 or RK 3 the negative side of the output is already connected to DC common So the output is simply connected to the desired termination point on the controller and it should all work The three outputs that are available on the DSP 50 are Output A Output B and Output B Inver...

Страница 9: ...Presence mode the retune process may take over 24 hours When the retuning process is complete any loop area that vehicles can still travel over will still detect the vehicle as expected Once the vehicle leaves the detector will fully recover from the retuning process within 1 second Output B can be set to operate in the True Presence mode not available in the magnetometer mode of operation In this...

Страница 10: ...Detect B LED will flicker a very fast flash that is not at full brightness This is a visual indication that a vehicle is being detected and the pulse will be output when the vehicle exits or is eventually tuned out NOTE In the magnetometer mode of operation the detector will only hold a detection for 2 seconds Therefore if a vehicle stays over the sensor for more than 2 seconds it may generate add...

Страница 11: ...imum frequency separation DIP Switch Frequency 9 10 OFF OFF High OFF ON Medium High ON OFF Medium Low ON ON Low Factory Default Loop Magnetometer DIP Switch 8 The DSP 50 is capable of operating with either a standard inductive loop or the new mini loop magnetometer As usual the inductive loop operates in both presence and pulse modes However the mini loop magnetometer can only operate in pulse mod...

Страница 12: ...tifies the modes available in each of the operating modes DIP Switch Output B Mode of Operation 5 6 Loop DIP switch 8 off Magnetometer DIP switch 8 on OFF OFF True Presence Pulse on Entry OFF ON Pulse on Entry Pulse on Entry ON OFF Pulse on Exit Pulse on Entry ON ON Fail Fail Factory Default True Presence Output B will be activated whenever a vehicle is present over the loop detection area Output ...

Страница 13: ...l secure when not in the fail mode of operation Output B Inverted is always in the opposite state of Output B and is not shown in the following figures The following figures show the effects of delay and extension on the A B outputs when the detector is operating in the loop mode The numbers between edges are the number of seconds in that period Figure 2 Outputs with No Delay or Extension Figure 3...

Страница 14: ...il Secure DIP Switch 3 On the DSP 50 the option for fail safe or fail secure only applies to Output A In general a fail safe detector will activate the output when the loop circuit is failed This is useful on a safety loop to prevent accidental closure of a gate on a vehicle On the free exit loop this will keep the gate open until the situation is fixed Fail safe is used in applications where it i...

Страница 15: ...ay setting available is 2 seconds Extension is the time added after a vehicle leaves the detection area During this interval Output A will remain activated with the intent of allowing the vehicle to fully exit the detection area before the gate begins to close If another vehicle arrives during this extension interval the remainder of the extension time is canceled and the detector returns to the n...

Страница 16: ...peatedly for the duration of the fault If the fault is corrected the LED will display the Prior Fault indication Shorted Loop When the detector senses that a loop is shorted or the inductance is too low the LED will turn on for 100 milliseconds then off for 100 milliseconds repeatedly for the duration of the fault If the fault is corrected the LED will display the Prior Fault indication Large Chan...

Страница 17: ...al state Output A will be activated during this time Reset in Fail secure At the start of a reset event a DIP switch change sensitivity change or power cycle the LED will turn off for 500 milliseconds on for 500 milliseconds blink repeatedly with 50 milliseconds on followed by 50 milliseconds off for one second and then display its normal state Output A will be deactivated during this time Delay I...

Страница 18: ...ly arriving vehicle if a vehicle is already in the detection area or the detector is in the extension interval Output A Active A vehicle is detected and any delay time has been timed or the detector has identified a fault and has activated Output A because it is in fail safe operation Figure 6 Detect A LED States Detect B LED The red Detect B LED is used to display the status of Output B There are...

Страница 19: ...r which this can occur In the Pulse on Entry mode this occurs when delay is enabled and currently timing or the entry pulse has been generated and the vehicle is still over the sensor In the Pulse on Exit mode this occurs when delay is enabled and currently timing or the detected vehicle is still over the sensor and the detector is waiting for it to depart before generating the exit pulse The Dete...

Страница 20: ...d state outputs and can only sink current Therefore if you want to drive a relay coil with an output the other side of the relay coil must be connected to an appropriate voltage for the coil positive DC supply Using an AC relay is not possible and may damage the detector The detector has snubber diodes built in for all of the solid state open collector outputs in case they do drive a relay coil Lo...

Страница 21: ...nto the road surface using a saw with an appropriate cutting disk for the road surface The slot cut should be wide enough that the wire being used will easily fit into the slot This is needed so that the loop sealant used can fully encapsulate the wire When the wire fits tightly in the slot the sealant may not be able to get below the wire leaving air pockets in the saw slot If water finds its way...

Страница 22: ...DSP 50 User Manual Page 22 of 27 DSP50_MAN_A Figure 8 Loop Installation Figure 9 Saw Cut for Home Run Exit and Chiseled Corner for Home Run Exit BACKER ROD PIECE LOOP WIRE SAW CUTS DETAIL A DETAIL B ...

Страница 23: ...backer rod pieces down into the saw slot as far as they will go Keeping the loop wire at the bottom of the saw slot allows the loop sealant to provide the maximum amount of protection possible from foreign object penetration Never use a continuous piece of backer rod over the loop as this would prevent the loop sealant from encapsulating the loop wire The loop sealant used should be appropriate fo...

Страница 24: ...should be checked This is done using an inductance meter The inductance of the loop should be less than 1500 microhenries It is very unusual to have a loop with an inductance value this high but it is possible with very large loops and many turns If the loop inductance value is above 1500 microhenries the loop will have to be replaced with a loop with less inductance Contact technical support for ...

Страница 25: ...ly open loop failures Any splices in the loop wire should be redone If there are any wire nuts used in the loop circuit remove them and replace with a crimp connection or preferably a soldered connection The open loop fault could also be a fatigued point in the loop wire This can occur at locations where the loop wires cross an expansion joint in the road surface Any place where the loop wires mus...

Страница 26: ... technical means are needed to help identify the source Call Technical Support in this case If the electrical interference is occurring in the wire from the loop to the detector additional twisting should help mitigate the issue Moving Objects in Proximity to the Loop Objects that can move and are metallic or somehow electrically conductive may cause detection issues A common issue is movement of ...

Страница 27: ...r proper detection If the channel sensitivity is set to 9 and the red LED still does not come on and you have another operating detector in the same box swap the loops between a working detector and a failing detector If the problem follows the loop the loop is the problem If it stays in the same detector replace the detector ...

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