Diablo Controls DSP-15 User Manual Download Page 10 | Manualshive

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Diablo Controls DSP-15 User Manual Download Page 10

DSP-15 User Manual

Page 10 of 23

DSP15_MAN_C

Output B Selection (DIP Switches 5 and 6)

Output B can be programmed to operate in one of four different modes that are selected using DIP switches 5
and 6. The following table identifies these four modes:

DIP Switch

Output B Mode

of Operation

5

6

OFF

OFF

True Presence

OFF

ON

Pulse on Entry

ON

OFF

Pulse on Exit

ON

ON

Fail

True Presence:

The B output will be energized whenever a vehicle is present over the loop detection area. The

A output can be modified by the delay and/or extension timing settings. The B output will not use these timing
settings. For example, if 2 seconds of delay is set, output B will energize as soon as the vehicle is detected, while
output A will wait for two seconds of continuous presence prior to energizing.

Pulse on Entry:

Every time the loop is occupied, a single 250 milliseconds pulse will be output on the B output.

Pulse on Exit:

Every time the loop becomes vacant or a vehicle is tuned out, a single 250 milliseconds pulse will

be output on the B output.

Fail:

If the DSP-15 recognizes some type of loop failure, a continuous output on the B output will be given. The B

output will remain activated until the failure is corrected.

The following figures show the effects of delay and extension on the A & B outputs. The numbers between
edges are the number of seconds in that period.

Figure 2: Outputs with No Delay or Extension

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Summary of Contents for DSP-15

Page 1: ...DSP15_MAN_C 11 27 18 Page 1 of 23 Pros Who Know Trust Diablo User Manual DSP 15 Vehicle Detector DSP 15 T Terminal Block DSP 15 M Male Molex DSP 15 F Female Molex ...

Page 2: ...sence DIP Switch 4 9 Output B Selection DIP Switches 5 and 6 10 Sensitivity Boost DIP Switch 7 12 Extension DIP Switches 8 and 9 12 2 Sec Delay DIP Switch 10 12 Indicators 13 5 Installation 16 Detector Installation 16 Loop Installation 16 6 Troubleshooting 20 No Power LED 20 Power LED Flashes On Once Every 2 Seconds 20 Power LED Flashes Slowly 1 Hz 20 Power LED Flashes Quickly 5 Hz 21 Power LED Sh...

Page 3: ...sical Dimensions 6 Figure 2 Outputs with No Delay or Extension 10 Figure 3 Outputs with Delay 11 Figure 4 Outputs with Extension 11 Figure 5 Outputs with Delay and Extension 11 Figure 6 Power LED States 14 Figure 7 Detect LED States 15 Figure 8 Loop Installation 18 ...

Page 4: ...ser selectable Setting Sensitivity Setting Sensitivity 0 48 ΔL L 5 08 ΔL L 1 32 ΔL L 6 06 ΔL L 2 24 ΔL L 7 04 ΔL L 3 16 ΔL L 8 03 ΔL L 4 12 ΔL L 9 02 ΔL L Frequency Settings There are four frequency settings available The actual loop frequency is dependent on loop circuit inductance DIP Switch Frequency 1 2 OFF OFF High OFF ON Medium High ON OFF Medium Low ON ON Low B Pulse Output 250ms 15ms Respo...

Page 5: ...at inductances below 30 microhenries Operating Voltages 10 5 volts to 30 volts AC or DC with over voltage protection Output Relay Rating 3 amps 125 volts Current Draw 10 5 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 95 relative humidity non condensing ...

Page 6: ...f 23 DSP15_MAN_C Mechanical Data Mounting Position Any Housing Material Bare PC Board Housing Size 768 inches High x 2 90 inches Wide x 4 125 inches Deep 19 51 mm High x 73 66 mm Wide x 104 77 mm Deep Figure 1 Physical Dimensions ...

Page 7: ...atively long time The retuning process takes about an hour to complete in the Normal Presence mode and about 19 hours in the Extended Presence mode with a vehicle detection of 1 ΔL L 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 recover from the retuning process within 1 se...

Page 8: ...ced in the fail safe position the A output relay will be fail safe in the absence of adequate voltage If placed in the fail secure position the reverse is true The jumpers are factory set to be fail safe All three jumpers must be set to the same setting Not doing this will cause incorrect operation of the A output Sensitivity The detector has ten user selectable sensitivity levels In most situatio...

Page 9: ...will indicate what type of loop failure open short or large ΔL L During the loop failure the red Detect LED and output A will be active for fail safe operation or inactive for fail secure operation If the loop recovers from its failure the red and green LEDs along with its two relay outputs will operate normally again However when Fail Memory is enabled the green LED will continue to indicate a pr...

Page 10: ...For example if 2 seconds of delay is set output B will energize as soon as the vehicle is detected while output A will wait for two seconds of continuous presence prior to energizing Pulse on Entry Every time the loop is occupied a single 250 milliseconds pulse will be output on the B output Pulse on Exit Every time the loop becomes vacant or a vehicle is tuned out a single 250 milliseconds pulse ...

Page 11: ...DSP 15 User Manual Page 11 of 23 DSP15_MAN_C Figure 3 Outputs with Delay Figure 4 Outputs with Extension Figure 5 Outputs with Delay and Extension ...

Page 12: ...is extension interval the remainder of the extension time is canceled and the detector returns to the normal presence state This interval is indicated by the red Detect LED blinking fast at 50 milliseconds on followed by 50 milliseconds off repeated until the interval is complete There are four intervals to choose from No extension 2 seconds of extension 5 seconds of extension and 10 seconds of ex...

Page 13: ...peatedly with 50 milliseconds on followed by 50 milliseconds off for one second and then display its normal state Open Loop When the detector senses that the loop is open or the inductance is too high the LED will turn on for 500 milliseconds then off for 500 milliseconds repeatedly for the duration of the fault If the fault is corrected and the Fail Memory feature is enabled the LED will display ...

Page 14: ...The red detect LED is used to display the status of the A output There are several different statuses that can be displayed on this LED Off No vehicle present in the detection area Reset in Fail safe 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 off for 500 milliseconds on for 500 milliseconds ...

Page 15: ... was detected but the detection zone is now empty and an extension interval is being timed The extension interval can be programmed for no extension 2 seconds 5 seconds or 10 seconds When the detection area becomes vacant the extension timer will start and the A output will continue to be activated During this interval the LED will blink quickly at 50 milliseconds on and 50 milliseconds off If ano...

Page 16: ...lity Wiring Diagram Pin Description 1 Output A Relay Common 2 Output A N C 3 Output A N O 4 Output B Relay Common 5 Output B N O 6 No Connection 7 DC Power In 8 DC Power Common 9 Loop 10 Loop Special attention should be paid to ensure that the loop wires remain tightly twisted together An air gap between the two wires for a loop may cause the detector to lock up if the wires are disturbed Loop Ins...

Page 17: ... distance from the loop to the detector Rather than dive into all of the calculations to arrive at a value we will just use safe values You can almost never have too many turns in a loop only too few For a loop size of 2 x 6 four turns will be sufficient unless there is metal in the loop area In that case add at least one turn and two if possible As the loop size reaches 6 x 6 four turns will work...

Page 18: ...wire should never be made in the roadway If the loop wire needs to be spliced to another cable to get to the detector the splice should be done in a junction box and the connections should be soldered and weatherproofed Wire nuts should never be used at any point in the loop circuit In order to keep the loop wire at the bottom of the saw slot 1 to 2 pieces of backer rod should be placed in the saw...

Page 19: ... of 23 DSP15_MAN_C Once the loop wire leaves the saw slot it should be twisted at least three times per foot More is better The twists should be kept tight to be most effective in reducing the effects of electrical interference ...

Page 20: ...that the detector has an open loop a high resistance in the loop circuit or excessive inductance The first step is to confirm that the detector has a loop connected to it and the loop is connected to the correct pins see the wiring configuration for the pin out If a loop is connected to the correct pins of the detector disconnect the loop and using an ohmmeter check the resistance of the loop circ...

Page 21: ...lso have a low inductance value if sufficient turns were not added Contact technical support for help with very small loops If you do not have a meter capable of measuring resistance and inductance but do have another operating detector in the same box you can skip to this step Swap the loops between a working detector and a failing detector If the problem follows the loop the loop is the problem ...

Page 22: ...lines electric motors and insufficient twisting of the loop wires just to name a few Other loops in the area that are connected to a different detector are prone to cross talk when the magnetic fields from different loops interfere with each other Adjusting the loop frequency of one or both of the loops in the same area will usually allow you to find a setting that both loops will work reliably wi...

Page 23: ...tes then perhaps the sensitivity setting is too low There are many variables in determining overall sensitivity loop size number of turns loop lead in percent coverage etc In most cases a sensitivity setting of 5 is the correct setting However to compensate for some unusual loop geometries this setting may be inadequate Adjust the sensitivity one level higher and recheck the detector for proper de...

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