Operating Instructions Technical Data Induction Loop
Contents
1. A Direction of traffic e Given the size of loop stated below the following number of windings are required Size of loop Number of windings 3 6m 4 6 10m 3 10 30 m 2 Place the loops in the grooves which must be cut into the road surface fig 5 To accommodate the feeder cable a groove should be run from one corner of the loop to the corner of the road Nominal groove width 4mm Nominal groove depth 30 50 mm 69181 0608 GB e The loop corners should be set at an angle of 45 in order to avoid damaging the cable fig 4 e Twist the feeder cable to the detector gt 20 turns per meter Fig 5 Road surface Loop sealing 3 windings of the loop cable 4mm Putting into Operation Connect the induction loops the relay outputs and the supply voltage Please note ILD11 connections 1 2 230 V AC ILD12 connections 1 2 12 24 V AC DC After being switched on for the first time as well as following a power failure or after every RESET the detector automatically performs a self adjustment depending on the set frequency FREQ the LED CH1 flash 4 to 7 times After the automatic self adjustment has been completed the ON LED lights up The unit is now ready for operation Operating Mode Indicator ON The ON LED indicates that the detector is ready for operation CH1 Glowing constantly loop A occupied Flashing loop malfunction 69181 0608 GB Operating Instructions Settings and Adjustme2. 69181 0608 GB Operating Instructions Description of Function Together with the wire loops laid in the ground the induction loop detectors are designed for detecting vehicles metal masses and triggering an action They can be used for controlling parking lot barriers warehouse rolling shutters garage doors or also for detecting vehicles in front of for e g automatic traffic lights Special Features e Automatic self adjustment on the loop connected as well as after altering the unit s settings This guarantees that the unit is easy to put into service and to operate e Maintenance free thanks to automatic compensation of atmospheric and environmental influences e Adjustable sensitivity and automatic sensitivity boost to reliably identify various vehicle types e Output via floating relay contacts with a max contact rating of 5 A 230 V AC e Indication of operating state and malfunctions via LEDs e The error supervision mode can be set for FAIL SAVE or FAIL SECURE Operating Instructions Functional Restrictions Cross talk If the loops of two detectors are located directly next to each other then the magnetic fields can overlap and cause interference resulting in malfunctions This can be avoided by taking the following measures e Set different working frequencies on the detectors The closer the loops are to each other the greater the difference in frequency should be e Increase the dist
3. Operating Instructions Frequency range Inductance range Sensitivity Response time Power supply Current input Output Max contact rating Temperature range Dimensions Weight 7 4 stage adjustable 20 140 kHz 20 1 500 uH 4 stage adjustable approx 120 ms 230 VAC 15 12 24 VAC DC 15 100 mA 2 relays 5 A 230 V AC 40 C to 80 C 75 x 40 x 76 90 incl connector mm H x W x D approx 220 g 69181 0608 GB z g s w w 7 A HE LN roo i i Jp mT B Induction Loop Detector ILD11 ILD12 230 V AC 12 24 V AC DC Operating Instructions ELDAT Operating Instructions FREQ _ SENS 1 ASB PRES PULSE RLY2 Fig 2 Connection scheme see also side of casin OFF CE ON FREQ 1E icy Imme REY 2 E 2 mj HIGH CE MED 1 C E om tow p py LOW SENS 1 3 E ow 3 E MED 4 _ 4 C m HIGH 3 CE MED 3 LE 4E LOW acm SH supply ASB 5 _ OFF 5 gl ON LIMITED PERMANENT PRES 6 presence 6C presence RLY2 PULSE RLY2 PULSE PULSE 7E on perect 7 on UNDETECT RLY2 8E PULSE 8 Cm PRESENCE Twist palr 7 and 8 Draht 7 u 8 verdrillen Note RLY1 Presence Relay RLY2 Pulse Relay CONNECT THE CORRECT SUPPLY VOLTAGE ILD11 CONNECTIONS 1 2 N L 230 V AC ILD12 CONNECTIONS 1 2 N L 12 24 V AC DC 69181 0608 GB PULSE Response Mode Relay 2 The response mode of relay 2 can be set via switch 7 Switch 7 PULSE RLY2 PUL
4. SE RLY2 PULSE PULSE 70 onperect 7 on uNDETECT Note Adjustments via switch 7 are only possible if relay 2 was previously set for pulse operation i e set RLY2 switch 8 to PULSE RLY2 Operating Mode Relay 2 The relay output of relay 2 can be set for either pulse operation PULSE or continuous operation PRESENCE Switch 8 RLY2 RLY2 8 _ PULSE 8 CE PRESENCE In the continuous operating mode PRESENCE the output remains switched as long as a vehicle is located within the loop s range of action With pulse operation PULSE the output relay switches for approx 0 8 s once the loop has responded FAIL SAVE FAIL SECURE Operating Mode Relay 1 The relay output of relay 1 is permanently set for continuous operation PRESENCE The relay output of relay 1 works in the FAIL SAVE mode closer connection 5 10 or in the FAIL SECURE mode opener 6 10 69181 0608 GB Operating Instructions In the event of brief power failures or by pressing the reset button the output of relay 1 is defined for the switching of 1 pulse By comparing the outputs of relays 1 and 2 a glitch in the power supply or a reset can therefore be detected RLY2 Mains Loop RLY1 PRESENCE ON not occupied 0 0 ON occupied 1 1 OFF not occupied 0 0 not occupied 1 0 ON not occupied 0 0 e The error supervision mode can be set for FAIL SAVE or FAIL SECURE Cleaning e Carefully wipe down the casing with a damp lint free cloth e Do
5. ance between the two loops gt 2 meters recommended e If the feeder cable is laid next to other electric cables it should be shielded This shielding only needs to be earthed on the detector side Reinforcements Steel reinforcements under the road can adversely affect the performance of the loop detection system This interference can be reduced by taking the following measures e Add two more windings to the loop e Select the maximum distance possible between the steel reinforcement and the loop cable Installation Instructions Detector e Attach the detector in a suitable weather protected location Feeder cable and loop cable e The feeder cable and loop cable should be of the same material Junction points between the loop and feeder cable should be avoided The cable must be of the insulated wire type with a cross section of gt 1 5 mm recommended loop cable type SIAF 1 5 mm e The feeder cable must be twisted with approx 20 turns per meter e The sensitivity of the loop reduces the longer the feeder cable is The feeder cable should therefore be as short as possible and not exceed 100 meters in length Installing the Induction Loop e The length of the loop is determined by the width of the road to be monitored It should extend up to 300 mm from each edge of the road fig 4 Fig 4 Edge of Groove E E S S Corner cut at 45 angle to avoid damaging the cable
6. not use any cleaning agents containing solvents These pose a health risk and can damage the casing surface Disposal Waste electrical products and batteries may not be disposed of with household waste Dispose of the waste product via a collection point for electronic scrap or via your specialist O dealer Put the packaging material into a ey container for cardboard and Q paper Operating Instructions SENS Setting the Sensitivity The sensitivity can be set for various vehicle types The settings MED HIGH or MED LOW are optimized for the majority of applications For vehicles with minimal metal mass e g bicycles the sensitivity can be set at HIGH Switches 3 4 sensitivity channel 1 HIGH Hoch MED HIGH Mittelhoch MED LOW Mittel LOW Niedrig OFF ON SENS 3E ow 3 E MED 4 4 mj HIGH 3 CE MED 3 Ml ic 4 m LOW 4 Change in inductance AL L in the case of various vehicle types loop 2m x 1m 3 windings Bicycle 0 02 Motorcycle 0 12 Truck 0 4 Car gt 1 0 ASB Automatic Sensitivity Boost If the ASB is switched on when a vehicle is detected the sensitivity of the detector is automatically increased to the maximum In this way long truck combinations and vehicles with high set chassis can be reliably identified and premature closing e g of a barrier prevented Switch 5 ASB ASB 5 _ OFF 5 CE ON Example signal sequence for long truck combinations with and witho
7. nts Important Each time the settings on the unit have been altered the RESET button must be pressed The unit then automatically performs a self adjustment Make sure that the induction loops are not occupied while self adjustment is taking place since also the sensitivity of the loop is redetermined during this process FREQ Setting the Frequency lf for example two detectors are installed the risk of cross talk beween adjacent induction loops can be avoided by setting different working frequencies on the detectors see also cross talk in the section Functional Restrictions Switches 1 2 setting the frequency HIGH approx 140 kHz MED HIGH approx 100 kHz MED LOW approx 60 kHz LOW approx 20 kHz m OFF CE ON FREQ 1E icy 1 E MED 20 2 L HIGH CE MED 1 CE ow 2 E Low 2 CE
8. ut ASB Loop AorB Signal no yes yes with ASB no without ASB rune yes a no PRES Signal Holding Time The signal holding time can be set via switch 8 for either PERMANENT PRESENCE or LIMITED PRESENCE Switch 6 PRES aes LIMITED PERMANENT PRES 6m Ipresence 6C presence At the PERMANENT PRESENCE setting the detector will constantly compensate for all atmospheric and environmental influences as long as a vehicle occupies the loop At the LIMITED PRESENCE setting the detector will constantly compensate for all atmospheric and environmental influences for the duration of approx 45 minutes after which the output is automatically reset 69181 0608 GB Supply package Accessories ILD Induction Loop Detector Operating Instructions Accessories Connecting base ILD RELBASE Safety Advice Before connecting and putting the unit into operation carefully read through the Operating Instructions e Electrical installation and programming may only be carried out by a qualified electrician e Have faulty units checked by the manufacturer e Do not make any unauthorized alterations or modifications to the unit Designated Use N The unit may only be used as a decoder device for induction loops Unpacking Unpack the items supplied Check that the delivery is complete AD Dispose of the packaging in the designated collection containers for the recycling of cardboard paper and plastic
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