Related Manuals for Diablo DSP-20-LV
Summary of Contents for Diablo DSP-20-LV
- Page 1 User Manual DSP-20 Dual Channel Vehicle Detector With Directional Logic Diablo Controls, Inc. Copyright © 2014 Document: DSP20_MAN_A Released: March 30, 2014 Pros Who Know Trust Diablo...
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Page 2: Table Of Contents
Contents Introduction................................3 Technical Data ..............................4 Functional Data...............................4 Electrical Data.................................4 Environmental Data..............................4 Mechanical Data..............................5 Features and Functions ............................6 Operating Modes..............................6 Presence Detection..............................6 Pulse Detection...............................7 Sensitivity................................7 Sensitivity Boost ..............................7 Fail-Safe vs Fail-Secure ............................7 Fail-Safe ..................................8 Fail-Secure ................................8 Detector Reset................................8 Channel Reset.................................8 Indicators................................9 Installation................................12 Detector Installation.............................12 Loop Installation ..............................12... -
Page 3: Introduction
Diablo Controls’ unique flicker display helps insure correct operation of a channel when it is operating in the pulse mode. The channel’s detect LED will turn on while the pulse is being output then display the flicker mode while the channel is still detecting the vehicle. -
Page 4: Technical Data
Technical Data Functional Data Sensitivity: Four sensitivities selectable for presence or pulse modes of operation. .50% ΔL/L Medium Low .10% ΔL/L Medium High .05% ΔL/L High .02% ΔL/L Frequency Settings: There are two settings per channel. The actual loop frequency is dependent on loop circuit inductance. -
Page 5: Mechanical Data
Mechanical Data Mounting Position: Housing Material: Lexan Housing Size: 2.36 inches (High) x 1.75 inches (Wide) x 4.09 inches (Deep) 59.94mm (High) x 4.45mm (Wide) x 10.39mm (Deep) DSP-20 User Manual Page 5 of 22 DSP20_MAN_A... -
Page 6: Features And Functions
Features and Functions Operating Modes There are two selectable operating modes. Both channels of the detector will operate in the same operating mode. The two operating modes are: Normal - Two Individual Channels with Pulse or Presence – In this operating mode the detector operates as two individual detectors. -
Page 7: Pulse Detection
the vehicle that stalled or parked on the loop. The retuning process takes about an hour to complete 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 second. -
Page 8: Fail-Safe
Fail-Safe When a channel is in the presence mode of operation and a loop failure is detected on that channel, the output for that channel will stay activated during the failure. In gate applications this feature is used to automatically open the gate if a loop fails. -
Page 9: Indicators
Indicators The DSP-20 is equipped with three LED indicators: Power (Green), Detect A (Red), and Detect B (Red). Power LED – The green power LED has four possible states: The voltage applied to the detector is less than the minimum display voltage of approximately 3.5 volts. - Page 10 100 milliseconds, on for 100 milliseconds, off for 100 milliseconds, on for 100 milliseconds, off for 100 milliseconds and then repeat the entire sequence for the duration of the fault. If the fault is corrected, the LED will display the Prior Fault indication. Prior Fault The detector is equipped with the ability to remember prior faults that have occurred since the last power interruption or reset (changing a DIP...
- Page 11 operation for the channel. In the figure the occupancy display is shown as the gray shaded area. DSP-20 User Manual Page 11 of 22 DSP20_MAN_A...
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Page 12: Installation
Installation Detector Installation Location: The detector should be installed in a weatherproof location that is near the loop. Ideally, a technician should be able to see the loop and the detector at the same time. Mounting: The detector will function when mounted in any orientation. If using a relay socket, it is best to mount the detector such that the front panel will be easily accessible for configuration and troubleshooting. - Page 13 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.
- Page 14 Special consideration should be given to where the home run saw cut meets the loop saw cuts. Here either an additional saw cut should be made as shown in Detail A or the inside of the sharp corner should be removed with a chisel as shown in Detail B.
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Page 15: Configuration
Configuration DIP Switches All of the controls for adjusting the configuration of the DSP-20 detector are located on the front panel 12-position DIP switch. There are no internal DIP switches or jumpers to configure. When a DIP switch is moved to the left position it is in the ON condition. The right position is OFF. - Page 16 Channel 2 Sensitivity (Switches 6 & 7) – These two switches select the sensitivity for Channel 2 when it is operating in a presence or pulse mode. For most installations the medium high or medium low setting will work. If motorcycle detection is required, you may need to use the medium high or high setting. Switch 7 Switch 6 Setting ΔL/L Low Sensitivity...
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Page 17: Wiring
200 to 270 volts AC There are four different wiring configurations (pin-outs) to facilitate easy replacement of any existing detectors. See the tables that follow to determine the correct model for your installation. DSP-20-LV, DSP-20-117, and DSP-20-230 or DSP-20-A-LV, DSP-20-A-117, and DSP-20-A-230 Pin Function... - Page 18 DSP-20-R-LV, DSP-20-R-117, and DSP-20-R-230 Pin Function DC + or AC Line DC Common or AC Neutral Channel 2 Relay Normally Open No Connection Channel 1 Relay Common Channel 1 Relay Normally Open Channel 1 Loop Channel 1 Loop Channel 2 Relay Common Channel 2 Loop Channel 2 Loop DSP-20-B-LV, DSP-20-B-117, and DSP-20-B-230...
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Page 19: Troubleshooting
Troubleshooting No Power LED The first step is to insure that the correct model of the detector is being used for the installation. Insure that the correct wiring configuration (pin-out) and the correct voltage are being used. Use a meter to measure the voltage applied to the detector. For the LV version the voltage must be above 10V AC or DC. -
Page 20: A Channel Led Flashes Quickly (5 Hz)
If you do not have a meter capable of measuring resistance and inductance, you can skip to this step. Swap the loops between a working channel and a failing channel. If the problem follows the loop the loop is the problem. If it stays in the same channel, replace the detector. -
Page 21: A Channel Led Intermittently Comes On / Stays On Without A Vehicle Present
A Channel LED Intermittently Comes On / Stays On Without a Vehicle Present This type of symptom is usually caused by one of three issues: physical issues with the loop, electrical interference, moving objects in proximity to the loop. Physical Issues with the Loop – There are many ways in which a loop installation can go bad. The insulation of the loop wire can fail. -
Page 22: A Channel Led Will Not Come On With A Vehicle Present
Another possibility is metal objects in close proximity to the loop. Utility manhole covers are objects that may move slightly when vehicle tires drive over them, especially if the vehicle turns while a tire in on the cover. Most manhole covers can be bolted in place. Contact the owner of the manhole to see what can be done to mitigate the cover movement.
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