Diablo Controls, Inc. DSP-13 User manual

Diablo Controls, Inc.

Document: DSP13_MAN_B

Released: October 9, 2015

Pros Who Know Trust Diablo

User Manual

DSP-13

Tri-Axis Detection (TRIADTM) System

DSP-13 User Manual Page 2 of 16 DSP13_MAN_B

1. Contents

2. Introduction........................................................................................................................................................3

3. Technical Data ....................................................................................................................................................4

Functional Data.......................................................................................................................................................4

Electrical Data.........................................................................................................................................................5

Environmental Data................................................................................................................................................5

Mechanical Data.....................................................................................................................................................5

4. Features and Functions ......................................................................................................................................7

Presence Detection.................................................................................................................................................7

Pulse Detection.......................................................................................................................................................7

Sensitivity................................................................................................................................................................7

Fail-Safe vs Fail-Secure ...........................................................................................................................................7

Fail-Safe ..................................................................................................................................................................7

Fail-Secure ..............................................................................................................................................................8

Detector Reset........................................................................................................................................................8

Indicators................................................................................................................................................................8

5. Installation........................................................................................................................................................10

Detector Installation.............................................................................................................................................10

Sensor Installation ................................................................................................................................................10

6. Configuration....................................................................................................................................................13

Sensitivity..............................................................................................................................................................13

DIP Switches .........................................................................................................................................................13

Pin Out ..................................................................................................................................................................14

7. Troubleshooting ...............................................................................................................................................14

No Power LED .......................................................................................................................................................14

Power LED Slowly Flashing ...................................................................................................................................14

Power LED Shows Quick Flashes Once Every Two Seconds .................................................................................15

Detect LED Intermittently Comes On / Stays On Without a Vehicle Present.......................................................15

Detect LED Will Not Come On With a Vehicle Present.........................................................................................16

DSP-13 User Manual Page 3 of 16 DSP13_MAN_B

2. Introduction

The DSP-13M and DSP-13S make up the TRI-Axis Detection (TRIADTM) system. The TRIAD system is based on a

technology that measures very small changes in the earth’s magnetic field in all three axes. This means that the

TRIAD system works properly regardless of the orientation of the sensor. With sensor orientation no longer an

issue, the installer is able to install the sensor in whatever manner best suits the site. The TRIAD system can be

installed using a single saw cut. The sensor is potted in epoxy to provide durability and small enough that it can

be placed right in the saw cut. It can also be installed up to three feet below the driving surface. This allows the

TRAID sensor to be placed below pavers in a driveway or under asphalt or concrete in new construction.

The TRIAD system was specifically developed for access control systems that need reliable vehicle detection for

all weather conditions with a minimally invasive installation. The system is comprised of two parts, a master

unit (DSP-13M) and a sensor (DSP-13S). The advanced sensor’s small size and high sensitivity make it ideally

suited to vehicle detection applications.

The detector uses a 10-pin Molex connector for connections. This can be plugged into a Diablo Controls RK-1R

or RK-3R rack.

One of the distinguishing features of the TRIAD system is its ability to hold detection indefinitely, even through

power interruptions. Even if a vehicle arrives when the unit is without power, when power is restored the TRIAD

system will show detect if there is now a vehicle in the detection zone.

DSP-13 User Manual Page 4 of 16 DSP13_MAN_B

3. Technical Data

Functional Data

Sensitivity: Ten sensitivities selectable for presence or pulse modes of operation. Level 5

should be sufficient for most applications.

Pulse Output: 250 milliseconds

Response Time: Activation - 50 milliseconds minimum. 225 milliseconds maximum.

Deactivation - 25 milliseconds minimum. 200 milliseconds maximum.

Vehicle Hold Time: Indefinite, depending on environmental noise conditions.

Detection Range: The type of vehicle will determine the actual point of detection. Larger vehicles

will be sensed further away. The following chart is based on an SUV.

DSP-13 User Manual Page 5 of 16 DSP13_MAN_B

Electrical Data

DSP-13M Operating Voltage: 8 volts to 30 volts DC

DSP-13M Operating Current: 60 milliamps maximum and includes all current used by the sensors.

DSP-13M Output Rating: The output is an open-collector output rated for sinking up to 50 milliamps. It is

not an isolated output and is referenced to pin 10 (Common) of the DSP-13M.

Sensor to Sensor Proximity: The sensors are passive measurement devices and as such will not interfere

with other sensors at any distance.

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

Mechanical Data

DSP-13M Mounting Position: Any

DSP-13M Housing Material: ABS

DSP-13M Size: 2.375 inches (High) x 2.340 inches (Wide) x .860 inches (Deep)

60.36mm (High) x 59.44mm (Wide) x 21.84mm (Deep)

DSP-13 User Manual Page 6 of 16 DSP13_MAN_B

DSP-13S Mounting Position: Any

DSP-13S Housing Material: Yellow Polyolefin

DSP-13S Size: .800 inches (High) x 1 750 inches (Wide) x .390 inches (Deep)

20.32mm (High) x 44.45mm (Wide) x 9.91mm (Deep)

DSP-13S Lead-in Diameter: .175”

DSP-13S Lead-in Length: 75 feet

DSP-13 User Manual Page 7 of 16 DSP13_MAN_B

4. Features and Functions

Presence Detection

The output will remain activated as long as a vehicle is sensed in the detection zone. This detector always

operates in a permanent presence or infinite presence detection mode. The sensor technology used is capable

of remembering vehicles in the detection zone even if the power is interrupted for long periods of time. In fact,

it can determine if a vehicle arrived in the detection zone while power was removed and provide the correct

presence output on power restoration.

Pulse Detection

The pulse mode used is commonly referred to as Pulse On Entry.

When pulse mode is selected the channel will output a pulse when the vehicle is first detected and will not

output again until the detection zone is no longer occupied.

Sensitivity

The detector has ten user selectable sensitivity levels. In most situations the setting of 5 will work effectively.

The sensor does have hysteresis between the detect and drop thresholds to ensure that the detector output

does not chatter during fringe detections.

Fail-Safe vs Fail-Secure

Here’s a little note on fail-safe versus fail-secure operation. In general, a fail-safe detector will output “detect”

when the sensor circuit is failed. This is always useful on a safety sensor to prevent accidental closure of a gate

arm on a vehicle. On the free exit sensor this will keep the gate open until the situation is fixed. This is useful in

applications where it is important to allow traffic flow to continue. A fail-secure detector will never output

“detect” when the sensor circuit is failed. This will keep the gate closed. This is useful in high-security areas or

installations where containment is needed.

Fail-Safe

When the detector is in the presence mode of operation and a sensor failure is detected, the output will stay

activated during the failure. In gate applications this feature is used to automatically open the gate if a sensor

fails.

It should be noted that a power failure will always result in a fail-secure operation. Fail-safe operation is only

available when a valid input voltage is applied to the detector. When configured for pulse output, the detector

will always operate in the fail-secure mode.

DSP-13 User Manual Page 8 of 16 DSP13_MAN_B

Fail-Secure

When the detector is in the presence mode of operation and a sensor failure is detected, the output will stay

deactivated during the failure. In gate applications this feature is used to keep the gate closed if a sensor fails.

It should be noted that a power failure will always result in a fail-secure operation. When configured for pulse

output the detector will always operate in the fail-secure mode.

Detector Reset

When the reset switch is pressed, the master will send a reset command to all connected sensors. If a prior

sensor fault was being displayed, it will be cleared. Care should be taken to insure that the detector is not reset

while any vehicles or objects are in or near the detection zone. These vehicles or objects may cause a

permanent offset in the reference readings for the sensors and may impact correct operations of the sensors.

Indicators

The DSP-13M is equipped with two LED indicators: Power (Green) and Detect (Red).

Power LED –The green power LED has four possible states:

OFF The voltage applied to the detector is less than the minimum display

voltage of approximately 3.3 volts. The detector should not be

operated below 7 volts DC as unpredictable operation will occur.

RESET When the detector is reset (a reset occurs automatically at power up),

the LED will turn off for 200 milliseconds, on for 200 milliseconds, off for

200 milliseconds, and then resume its normal display.

PRIOR FAILURE The detector is equipped with the ability to remember prior faults that

have occurred since the last power interruption or reset. The LED will

turn off for 100 milliseconds, on for 100 milliseconds, off for 100

milliseconds, on for 1700 milliseconds and then repeat the sequence

until power is cycled or the detector is reset.

NORMAL The LED is always on when the detector is in its normal state of

operation with no prior failure in memory.

DSP-13 User Manual Page 9 of 16 DSP13_MAN_B

Detect LED –The red Detect LED is used to display the status of detection zone and a pending change of

sensitivity. There are several different statuses that can be displayed on this LED:

RESET When the detector is reset (a reset occurs automatically at power up),

the LED will turn off for 200 milliseconds, on for 200 milliseconds, off for

200 milliseconds, and then resume its normal display.

SENSITIVITY CHANGE When the sensitivity setting is changed, the detect LED will begin

flashing at a 5 Hz rate (100 milliseconds on, 100 milliseconds off). Once

the sensitivity switch has not changed position for one second, the

detector will automatically reset to implement the new sensitivity

setting. Returning the sensitivity to the original setting will also stop the

flashing.

DETECTION When the detector is in presence mode the LED will be on while a

vehicle is in the detection zone. In the pulse mode the LED will turn on

for 250 milliseconds with the output, off for 250 milliseconds, and then

show the occupancy display until the vehicle exits.

OCCUPANCY When the detector is operating in the pulse mode of operation and the

detection zone is currently occupied, the LED will be turned on to a

dimmer level than normal and the LED will be flashed at a very fast rate

that will make it look like it is flickering.

This display is meant to be easily distinguishable from the normal on

display. With this additional display mode, the pulse mode of operation

can easily be monitored for correct operation.

A look at the following figure will show how this occupancy indication is

used to provide additional information during pulse mode operation. In

the figure the occupancy display is shown as the gray shaded area.

DSP-13 User Manual Page 10 of 16 DSP13_MAN_B

5. Installation

Detector Installation

Location: The detector should be installed in a weatherproof location that is near the detection zone. Ideally, a

technician should be able to see the detection zone and the detector at the same time.

Mounting: The detector will function when mounted in any orientation. When using a rack, it is best to mount

the rack such that the front panel of the detector will be easily accessible for configuration and troubleshooting.

Wiring: When the detector is plugged in to a rack, the rack will provide and identify the wiring connection

points.

Sensor Installation

The reliability and overall performance of the detector are greatly dependent on the installation of the sensor

itself. There are three factors that go into a good sensor installation: sensor location, type of wire used (if

additional lead-in is needed), and installation practices.

Sensor Location: The sensors sense changes in the earth’s magnetic field. The length of the edge facing the

sensor will affect its detection distance. As a vehicle approaches a sensor head on, it presents an edge

approximately six foot long. However, if the vehicle drives by the side of the sensor, it presents an edge of

typically 12 to 15 feet. Therefore, the sides of a vehicle are easier to detect than the vehicle head on. This

causes the detection pattern to be oblong in the driving lane. Usually 25% to 50% wider than it is long.

It is advised that you tape down the sensor on the surface in the approximate location that you plan to install it.

Connect it to the master and verify that detection zone is where you want it to be and that moving objects, such

as a gate, are not picked up by the sensor. You may need to adjust the sensitivity and the placement of the

sensor to get the desired detection zone. Be careful to insure that during your testing that vehicle tires do not

run over the sensor itself while it is taped down. This will destroy the sensor.

Type of Wire Used: The sensors are provided with 75 feet of lead-in cable and this is usually sufficient for most

installations. However, if additional lead-in cable is needed a two conductor, twisted pair cable should be used.

This cable should have a jacket rated for wet locations as most conduits will eventually fill with water at some

point.

The gauge of the wires in the lead-in cable to use depends on distance in cable feet from the sensor to the

detector. The gauge of the wires within the cable can be 20AWG as long as the detector is within 100 feet of the

sensor in cable distance. For 100 to 200 feet, use at least 18AWG wires. At greater than 200 feet, use a 16AWG

wires at a minimum.

Installation Practices: The sensors can be installed in several different ways depending on the type of driving

surface and if the site is new construction or existing.

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