CARLO GAVAZZI LDP1 Manuale utente
Loop Detector
Single and Dual Loops
Plug In
Carlo Gavazzi Industri Over Hadstenvej 40, 8340 Hadsten, Denmark
Instruction manual
Manuel d’instructions
Manuale d’istruzione
Betriebsanleitung
Manual de instrucciones
Brugervejledning
使用手册
LDP1, LDP2
ENGLISH page.......................3
DEUTSCH seite ....................26
FRANÇAIS page ..................50
ESPAÑOL página .................74
ITALIANO pagina.................98
DANSK side ......................122
中文 第页 .........................146
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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Table of contents
1. Introduction .............................................................................................................. 4
1.1 Description ..........................................................................................................................4
1.2 Validity of documentation ......................................................................................................4
1.3 Who should use this documentation........................................................................................4
1.4 Use of the product ................................................................................................................4
1.5 Safety precautions................................................................................................................4
1.6 Other documents..................................................................................................................4
2. Product ..................................................................................................................... 5
2.1 Main features.......................................................................................................................5
2.2 Identification number ............................................................................................................5
2.3 Specifications ......................................................................................................................6
3. Wiring diagrams....................................................................................................... 7
4. Structure................................................................................................................... 8
5. LED indications.......................................................................................................... 9
5.1 Power / fault indicator LED..................................................................................................10
5.2 Loop state LED....................................................................................................................10
5.3 Relay state LED...................................................................................................................10
6. Dip Switch .............................................................................................................. 11
DIP Switch settings for Single Loop (LDP1)....................................................................................11
DIP Switch settings for Dual Loop (LDP2)......................................................................................15
7. Loop installation ..................................................................................................... 18
7.1 Dimension and placement of the loop ...................................................................................18
7.2 Inductance and loop turns.. .................................................................................................19
7.3 Loop wire material..............................................................................................................20
7.4 Feeder cable......................................................................................................................21
7.5 Ground Installation .............................................................................................................22
8. Product Setup Guide ............................................................................................... 22
8.1 Channel Selection ..............................................................................................................22
8.2 Sensitivity adjustment ..........................................................................................................23
8.3 Automatic Sensitivity Boost (ASB)..........................................................................................24
8.4 Fail Safe and Fail Secure mode............................................................................................25
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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1. Introduction
This manual is a reference guide for Carlo Gavazzi Loop Detector LDP1 and LDP2. It describes the product
specifications as well as how to install, set up and use the product for its intended use.
1.2 Validity of documentation
This manual is valid only for LDP1 and LDP2 Loop Detector and until any newer documentation is published.
This instruction manual describes the functions, operations and installation of the product for its intended
use.
1.6 Other documents
It is possible to find the datasheet, manuals, brochures and electrical drawings on the Internet at
http://gavazziautomation.com
1.5 Safety precautions
This Loop Detector must not be used in applications where personal safety depends on the function of the Loop
Detector.
Installation and use must be carried out by trained technical personnel with basic electrical installation knowledge.
The installer is responsible for correct installation according to local safety regulations and must ensure that a
defective Loop Detector will not result in any hazard to people or equipment. If the Loop Detector is defective, it
must be replaced and secured against unauthorized use.
1.3 Who should use this documentation
This manual contains important information regarding installation and must be read and completely
understood by specialized personnel dealing with these kinds of devices.
We highly recommend that you read the manual carefully before installing the Loop Detector. Please save
the manual for future use. The installation manual is intended solely for qualified technical personnel.
1.4 Use of the product
The Loop Detector is primarily used to detect vehicles such as cars, trucks, buses and others.
A loop in the ground is required for the Loop Detector to detect any vehicles above the loop. The device
works on the same principle of an inductive sensor; utilizing the phenomenon of eddy current. When a
metal target/vehicle approaches on top of the loop, the magnetic field generated by the loop interacts with
the target and makes the Loop Detector to change its output.
The Loop Detector can be used at carpark barriers, bollards, gates, toll gantries and many other door
access applications.
1.1 Description
Carlo Gavazzi Loop Detectors are devices designed and manufactured in accordance with IEC international
standards and are subject to the Low Voltage (2014/35/EU) and Electromagnetic Compatibility (2014/30/
EU) EC directives.
All rights to this document are reserved by Carlo Gavazzi Industri: copies may be made for internal use
only. Please do not hesitate informing us to make any suggestions for improving this document.
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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2. Product
2.1 Main features
• Loop input inductance: 20 μH to 1000 μH
• Adjustable sensitivity in 10 steps: 0.01% to 1.00% via potentiometer
• Automatic loop frequency tuning or manual tuning via 4 adjustable loop frequency channels to
avoid crosstalk
• Automatic Sensitivity Boost (ASB) for high bed vehicle detection
• Selectable fail safe and fail secure mode
• 2 x SPDT relay outputs, selectable operation as pulse or presence switching
• Multicolor power/fault LED indication for easy setup and intuitive diagnostic
• Individual loop state multicolor LED to indicate different loop status and fault
• Loop diagnostic capability: loop short circuit, loop open circuit, inductance out of range,
channel crosstalk
• Directional logic for dual loop
• Wide range power supply: 24-240 VAC/VDC, 45-65 Hz
2.2 Identification number
Code Option Description
L-Loop
D-Detector
P-Plug in
1/2 1Number of loops
2Number of loops
P-Potentiometer
A-Adjustment
2-Number of outputs
D-2 x SPDT outputs
U24 -Power supply 24 - 240 VAC/VDC
Number of loops Code
1 LDP1PA2DU24
2 LDP2PA2DU24-
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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2.3 Specifications
Loop input inductance 20 μH ... 1000 μH
Adjustable sensitivity 0,01% ... 1,00%
Number of adjustable steps 10
Number of frequency channels 4
Frequency range 10 ... 130 kHz
Loop fault detection Short circuit, open circuit, inductance out of range,
frequency crosstalk
Response time 130 ms
Output type Relay
Number of output 2 x SPDT
Output mode Pulse or presence; selectable via dip switch
Output Assignment LDP1: 2 x SPDT for loop 1
LDP2: 1 x SPDT for loop 1 and 1 x SPDT for loop 2
Rated operational voltage (output) 250 VAC/VDC
Rated operational current (Ie)AC1: 5 A @ 250 VAC
DC1: 1 A @ 30 VDC
Mechanical lifetime 15 x 106
Electrical lifetime >100 000 operations (@5A load)
Protection Reverse polarity and overvoltage
Rated operational voltage (UB) 24 ... 240 VAC/VDC
LDP1 Power consumption 24 VAC/VDC < 2 W / 2.5 VA
115 VAC/VDC < 2 W / 3 VA
240 VAC/VDC < 2 W / 4 VA
LDP2 Power consumption 24 VAC/VDC < 2.5 W / 3.5 VA
115 VAC/VDC < 2.5 W / 4 VA
240 VAC/VDC < 2.5 W / 5 VA
Rated supply frequency 45 to 65 Hz
Rated insulation voltage 800 V
Rated impulse withstand voltage 4 kV (1.2/50 μs)
Power-ON delay (tv)5 s for manual frequency tuning
10 s for automatic frequency tuning
Ambient temperature -40° ... +70°C (-40° ... +158°F) (operating)
-40° ... +70°C (-40° ... +158°F) (storage)
Ambient humidity range 0% ... 90% (operating)
0% ... 90% (storage)
Overvoltage category III (IEC)
Degree of protection IP30 (IEC)
Pollution degree 2 (IEC)
Connection type 11 pin circular plug-in
Connection at socket (ZPD11A) Screw terminal
Housing material PPO PX9406-802, PPO Noryl SE1
Colour RAL 7035 (Grey)
Dimensions 81mm (h) x 35.5mm (w) x 60.2mm (d)
Weight LDP1: 105 g
LDP2: 108 g
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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LDP plug in version required to be plugged into a socket ZPD11A which is sold separately.
3. Wiring diagrams
Single loop (LDP1) plug configuration
1
2
3
4
567
8
9
10
11
Supply
Loop
Relay
1
Relay 2
1Supply
2Supply
3Relay 1 Normally Open (NO)
4Relay 1 Common (COM)
5Relay 2 Normally Open (NO)
6Relay 2 Common (COM)
7Loop
8Loop
9Earth
10 Relay 2 Normally Closed (NC)
11 Relay 1 Normally Closed (NC)
Earth pin must be connected to earth
Do not wipe grease off pins
Dual loop (LDP2) plug configuration
1
2
3
4
567
8
9
10
11
Supply
Loop 1
Relay
1
Relay 2
Loop 2
1Supply
2Supply
3Relay 1 Normally Open (NO)
4Relay 1 Common (COM)
5Relay 2 Normally Open (NO)
6Relay 2 Common (COM)
7Loop 1
8Loop 1, 2, Earth
9Loop 2
10 Relay 2 Normally Closed (NC)
11 Relay 1 Normally Closed (NC)
Earth pin must be connected to earth
Do not wipe grease off pins
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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4. Structure
Loop 2 LED
Relay 2 LED
Power / Fault LED
Reset button
Loop LED
Relay 1 LED
Relay 2 LED
Dip switch
Potentiometer
LDP1 Single Loop
Power / Fault LED
Reset button
Potentiometer loop 2
Loop 1 LED
Relay 1 LED
Dip switch
Potentiometer loop 1
LDP2 Dual Loop
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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Loop state LED
LED colour LED constant LED Flashing
Inductance OK -
Inductance too high Inductance too low
Loop is open circuit Loop is short circuit
Relay state LED
LED colour Mode Relay
deactivated Relay activated
Presence mode LED OFF LED ON
Pulse mode, 0.1 s LED OFF LED ON for 0.5 s
Pulse mode, 0.5 s LED OFF LED ON for 1.0 s
Power / fault indicator
LED colour LED constant LED Flashing
All OK (ASB OFF) DIP switch changed, but
changes not in effect
All OK (ASB ON) -
Low signal indication -
Channel crosstalk -
-Indication of the frequency
channel
5. LED indications
In general, LDP Loop Detectors have 3 categories of LED indications; namely Power/Fault indicator
LED, Loop state LED and Relay state LED:
Single loop (LDP1)
Loop state LED
LED colour LED constant LED Flashing
Inductance OK -
Inductance too high Inductance too low
Loop is open circuit Loop is short circuit
Relay state LED
LED colour Mode Relay
deactivated Relay activated
Presence mode LED OFF LED ON
Pulse mode, 0.1 s LED OFF LED ON for 0.5 s
Pulse mode, 0.5 s LED OFF LED ON for 1.0 s
Dual loop (LDP2) Power / fault indicator
LED colour LED constant LED Flashing
All OK (ASB OFF) DIP switch changed, but
changes not in effect
All OK (ASB ON) -
Low signal indication -
Channel crosstalk -
-Indication of the frequency
channel
Rev.00 - 01.2019 | LDP1/LDP2 Single and Dual Loop Detector | © 2018 | CARLO GAVAZZI Industri
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5.1 Power / fault indicator LED
LED colour LED constant LED Flashing
All OK (ASB OFF) DIP switch changed, but changes not in effect
All OK (ASB ON) -
Low signal indication -
Channel crosstalk -
- Indication of the frequency channel
Explanation:
• Green LED (steady): Unit is powered up and everything is working well
• Green LED (flashing): Dip switch has been changed since power up, but change has not taken
effect. Please press the reset button
• Blue LED (steady): Automatic Sensitivity Boost is turned ON and everything is working well
• Yellow LED (steady): Signal level is low in the loop. It is recommended to increase sensitivity
• Red LED (steady): Crosstalk of loop frequency with another loop detected. Select different frequency
channel on DIP switches and reset product
• White LED (flashing): After start up, the number of times the LED flashes, indicates the frequency
channel selected in both manual and automatic frequency tuning mode (e.g. LED flashes two times
is equivalent to channel 2)
5.2 Loop state LED
Explanation:
• Green LED (steady): Loop inductance is within limit and working well
• Yellow LED (steady): Loop inductance is too high (more than 1000µH)
• Yellow LED (flashing): Loop inductance is too low (less than 20µH)
• Red LED (steady): Loop is open circuit
• Red LED (flashing): Loop is short circuit
LED colour LED constant LED Flashing
Inductance OK -
Inductance too high Inductance too low
Loop is open circuit Loop is short circuit
5.3 Relay state LED
Explanation:
• Yellow LED (off): Relay is not activated
• Yellow LED (steady): Relay is activated and in presence mode
• Yellow LED (on for 0.5 s): Relay is activated and in pulse mode, 0.1 s
• Yellow LED (on for 1.0 s): Relay is activated and in pulse mode, 0.5 s
LED colour Mode Relay deactivated Relay activated
Presence mode LED OFF LED ON
Pulse mode, 0.1 s LED OFF LED ON for 0.5 s
Pulse mode, 0.5 s LED OFF LED ON for 1.0 s
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