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Summary of Contents for Diablo Controls DSP-50
- Page 1 User Manual DSP-50 Vehicle Detector Pros Who Know Trust Diablo...
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Page 2: Table Of Contents
Power LED Shows Two Quick Flashes Once Every Two Seconds................25 Detect LED Intermittently Comes On / Stays On Without a Vehicle Present ............25 Detect LED Will Not Come On With a Vehicle Present ..................26 DSP-50 User Manual Page 2 of 27 DSP50_MAN_A... -
Page 3: Figures
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 DSP-50 User Manual Page 3 of 27 DSP50_MAN_A... -
Page 4: Introduction
2. Introduction The DSP-50 detector is intended to be a full-featured single channel detector that can work with both inductive loops as well as the new mini-loops. Many features have been included which are normally found only on more expensive models. The small package is powered by a high-performance 8-bit microcontroller that does not skimp on performance. -
Page 5: Technical Data
130ms ±10ms 250ms ±20ms Vehicle Hold Time: In Normal Presence Mode: Approximately 1 hour for a detection of 1% ΔL/L. In Extended Presence Mode: Approximately 19 hours for a detection of 1% ΔL/L. DSP-50 User Manual Page 5 of 27 DSP50_MAN_A... -
Page 6: Electrical Data
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 95% relative humidity non-condensing DSP-50 User Manual Page 6 of 27 DSP50_MAN_A... -
Page 7: Mechanical Data
Mounting Position: 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 DSP-50 User Manual Page 7 of 27 DSP50_MAN_A... -
Page 8: Features And Functions
The three outputs that are available on the DSP-50 are Output A, Output B, and Output B Inverted. The operation of Outputs A & B are discussed in the following sections. Output B Inverted is always the opposite of Output B. -
Page 9: Presence Detection
250 milliseconds long. If the 2-second extension feature is active the pulse will be 2 seconds long. If the 5-second extension feature is active the pulse will be 5 seconds long. The pulse generated DSP-50 User Manual Page 9 of 27... -
Page 10: Sensitivity (Rotary Switch)
The factory default is five (5). Like most inductive loop vehicle detectors, the DSP-50 directly measures the change in frequency of the loop and from there, calculates the change in inductance when a vehicle interacts with it. The change in inductance is measured as %ΔL/L (reads as “percent delta L over L”). -
Page 11: Frequency (Dip Switches 9 And 10)
The main variables for inductive coupling are loop size, distance between loops, and the loop frequency. To aid in mitigating inductive coupling, each DSP-50 unit comes with two frequency switches. They are binary coded allowing up to four different operating frequencies. -
Page 12: Output B Selection (Dip Switches 5 And 6)
In the Extended Presence mode (DIP switch 7 on) the retune process may take over 24 hours. This is quite a long time, but it isn’t infinite. The DSP-50 does not have infinite presence. When the retuning process is complete, any loop area that vehicles can still travel over will still detect the vehicle as expected. -
Page 13: Figure 2: Outputs With No Delay Or Extension
Fail: If the DSP-50 recognizes some type of loop failure, Output B will be activated. Output B will remain activated until the failure is corrected. NOTE: Output B is always fail-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. -
Page 14: Normal Sensitivity / Sensitivity Boost (Dip Switch 4)
Fail-Safe / Fail-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. -
Page 15: Delay / Extension (Dip Switches 1 And 2)
Delay and extension cannot be selected at the same time. The possible delay and extension settings are summarized in the table below: DIP Switch Output A Output A Delay Time Extension Time None None 2 seconds None None 2 seconds None 5 seconds Factory Default DSP-50 User Manual Page 15 of 27 DSP50_MAN_A... -
Page 16: Indicators
Indicators The DSP-50 is equipped with three (3) LED indicators: Power (Green), Detect A (Red), and Detect B (Red). Power LED – The green power LED indicates these possible states: The voltage applied to the detector is less than the minimum display voltage of approximately 5 volts. -
Page 17: Figure 5: Power Led States
LED will return to the off state. If the vehicle is still present after 2 seconds, the LED will become solid and Output A will be activated. DSP-50 User Manual Page 17 of 27 DSP50_MAN_A... -
Page 18: Figure 6: Detect A Led States
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. DSP-50 User Manual Page 18 of 27 DSP50_MAN_A... -
Page 19: Figure 7: Detect B Led States
A vehicle is detected and Output B is activated or the detector has identified a fault and has activated Output B because it is in the fail output mode of operation. Figure 7: Detect B LED States DSP-50 User Manual Page 19 of 27 DSP50_MAN_A... -
Page 20: Installation
Wiring: If plugging the detector in to the operator, you should be certain that the operator pin out for its connector is the same as that of the DSP-50 detector and that the voltage supplied to the detector is between 10 and 30 volts DC. - Page 21 This will also help remove dust from the saw cutting operation from the sides of the saw slot. This will allow better adhesion of the loop sealant to the saw slot. DSP-50 User Manual Page 21 of 27...
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Page 22: Figure 8: Loop Installation
BACKER ROD PIECE LOOP WIRE SAW CUTS DETAIL B DETAIL A Figure 8: Loop Installation Figure 9: Saw Cut for Home Run Exit and Chiseled Corner for Home Run Exit DSP-50 User Manual Page 22 of 27 DSP50_MAN_A... -
Page 23: Configuration
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. Configuration Wiring There is only one wiring configuration (pin-out) offered for the DSP-50. Function Loop or Mini-Loop Loop or Mini-Loop... -
Page 24: Troubleshooting
The LED should begin flashing at a much slower rate (½ second on, ½ second off). If it does not change its flashing rate, change the detector. DSP-50 User Manual Page 24 of 27 DSP50_MAN_A... -
Page 25: Power Led Shows Two Quick Flashes Once Every Two Seconds
DSP-50 User Manual Page 25 of 27... -
Page 26: Detect Led Will Not Come On With A Vehicle Present
In most cases, a sensitivity setting of 5 is the correct setting. However, to compensate for some unusual loop geometries, this DSP-50 User Manual Page 26 of 27... - Page 27 If the problem follows the loop the loop is the problem. If it stays in the same detector, replace the detector. DSP-50 User Manual Page 27 of 27...
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