Allmatic A1H-U Manuale utente

Loop Detector

Single Loop

DIN rail

ALLMATIC S.R.L. VIA DELL’ ARTIGIANO 1 Z.A., 32026 BORGO VALBELLUNA (BL), ITALY

Instruction manual

Manuel d’instructions

Manuale d’istruzione

Manual de instrucciones

A1H-U

ENGLISH page.......................3

FRANÇAIS page ..................22

ESPAÑOL página .................42

ITALIANO pagina.................62

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................................................................................................................... 7

5. LED indications.......................................................................................................... 8

5.1 Power / fault indicator LED....................................................................................................9

5.2 Loop state LED......................................................................................................................9

5.3 Relay state LED.....................................................................................................................9

6. Dip Switch .............................................................................................................. 10

DIP Switch settings....................................................................................................................10

7. Loop installation ..................................................................................................... 14

7.1 Dimension and placement of the loop ...................................................................................14

7.2 Inductance and loop turns.. .................................................................................................15

7.3 Loop wire material..............................................................................................................16

7.4 Feeder cable......................................................................................................................17

7.5 Ground Installation .............................................................................................................17

8. Product Setup Guide ............................................................................................... 18

8.1 Channel Selection ..............................................................................................................18

8.2 Sensitivity adjustment ..........................................................................................................19

8.3 Automatic Sensitivity Boost (ASB)..........................................................................................20

8.4 Fail Safe and Fail Secure mode............................................................................................21

1. Introduction

This manual is a reference guide for Allmatic Loop Detector A1H-U. 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 A1H-U 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://www.allmatic.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

Allmatic 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 Allmatic Industri: copies may be made for internal use only.

Please do not hesitate informing us to make any suggestions for improving this document.

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

2.3 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 2 x SPDT for loop 1

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

Power consumption 24 VAC/VDC < 2 W / 2.5 VA

115 VAC/VDC < 2 W / 3 VA

240 VAC/VDC < 2 W / 4 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 IP20 (IEC)

Pollution degree 2 (IEC)

Connection type Screw terminal

Housing material PPO PX9406-802, PPO Noryl SE1

Colour RAL 7035 (Grey)

Dimensions 84 mm (h) x 22 mm (w) x 99 mm (d)

Weight 134 g

3. Wiring diagrams

L11 Loop

L12 Loop

E1 Earth

R21 Relay 2 Normally Open (NO)

R22 Relay 2 Normally Closed (NC)

R23 Relay 2 Common (COM)

R11 Relay 1 Normally Open (NO)

R12 Relay 1 Normally Closed (NC)

R13 Relay 1 Common (COM)

A1 Supply

A2 Supply

1 2 3 45 6 7 8 9 10 11 12

RESET

4567

SENSITIVITY

RELAY 1

LOOP

RELAY 2

1 2 3 45 6 7 8 9 10 11 12

ON 78 CTS

R11 R12 R13

Relay 1

A1 A2

Supply

Relay 2

L11 L12 E1

Loop

R21 R22 R23

4. Structure

Power / Fault LED

Reset button

Loop LED

Relay 1 LED

Relay 2 LED

Dip switch

Potentiometer

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

5. LED indications

In general, LDD Loop Detectors have 3 categories of LED indications; namely Power/Fault indicator

LED, Loop state LED and Relay state LED:

L11L12 E1

R21R22 R23

R11R12 R13

A1 A2 E2

RESET

4567

SENSITIVITY

RELAY 1

LOOP

RELAY 2

123456789101112

ON 78 CTS

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

5.1 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

6. Dip Switch

DIP Switch settings

123456789101112

RESET

4567

SENSITIVITY

RELAY 1

LOOP

RELAY 2

123456789101112

ON 78 CTS

DIP SWITCH 1 - Frequency mode selection

The Loop Detector operates on one out of four channels. If the Loop Detector is located near sources

of electrical or magnetic disturbances, e.g. from other Loop Detectors, some channels can be more

advantageous to use than others. Two Loop Detectors placed in close proximity of each other should

use different channels to avoid crosstalk between the loops.

• When DIP SWITCH 1 is set to ON, the user manually selects which channel is used by setting DIP

switch 2 and 3.

Frequency settings

1Selection

mode Automatic channel selection Manual channel selection

2Channel

selection DIP switch 2 and 3 are not used in

automatic channel selection

1 2 3 4

General settings

4 Turn-on delay Delay OFF Delay 2.0 sec

5 ASB ASB OFF ASB ON

6 Failure mode Fail safe Fail secure

Relay 1 settings

7 Output mode Pulse mode Presence mode

8 Time 0.1 sec pulse 0.5 sec pulse Inﬁnite 60 min 10 min 1 min

9 Entry / Exit Vehicle entry Vehicle exit

Relay 2 settings

10 Output mode Pulse mode Presence mode

11 Time 0.1 sec pulse 0.5 sec pulse Inﬁnite 60 min 10 min 1 min

12 Entry / Exit Vehicle entry Vehicle exit

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