User, installation and
safety instructions
Nice
LP22
EN
5 - OUTPUTS AND LED INDICATORS
5.1 - Operating principle of the relays
The factory setting establishes that both relays function according to the principle of standby current. The
operation principle of the relay can be set according to the following table by using jumpers, if fitted on the
card. In this regard, the housing of the detector must be opened carefully (see table 7).
- Warning! On the card there are components which are sensitive to static energy. When
working with the device open, appropriate precautions are required. Do not touch the compo-
nents or conductors! The warranty will be nullified for damages caused by improper handling!
Re
la
is
JP
1
JP
2
3
2
1
JP
3
JP
4
Platine
3
2
1
3
2
1
3
2
1
Table 7
Detector status
Relay operating principle
1*)
2
3
4
Tension is off
Free loop
Output
Loop fault
✱
) Factory setting
Relay
Jumper
Position
Relay function
1
JP1
1-2
•
•
Normally open contact
2-3
•
•
Normally closed contact
JP3
1-2
•
•
Working current principle
2-3
•
•
Quiescent current principle
2
JP2
1-2
•
•
Normally open contact
2-3
•
•
Normally closed contact
JP4
1-2
•
•
Working current principle
2-3
•
•
Quiescent current principle
5.2 - LED indicators
The green LED indicates that the detector is ready for operation. The red LED, depending on the occupa-
tion status of the loop, indicates the activation of the relay output (see table 8).
Table 8
Green LED loop control
Red LED loop status
Detector status
Off
Off
No power voltage
Flashing light
Off
Frequency indication or adjustment
On
Off
The detector is ready, free loop
On
On
The detector is ready, occupied loop
Off
On
Loop fault
5.3 - Loop frequency indication
About 1 s after the adjustment of the detector, the loop frequency is indicated by flashing signals on the
green LED. First of all, the 10 kHz location of the frequency value will be displayed. For each frequency
value of 10 kHz, the green LED of the detector channel will flash once. After 1 sec. the 1 kHz position will
be displayed in the same manner. If the value at the position of 1 kHz is ‘0’ the LED will flash 10 times.
The 1 kHz position flashes are slightly shorter than the 10 kHz position flashes.
Example of 57 kHz loop frequency:
Tens
Units
1 s
5x 10 kHz
7x 1 kHz
6 - ELECTRICAL CONNECTIONS
- Warning!
– Incorrect connections can cause faults or hazards; therefore ensure that the specified con-
nections are strictly observed and performed by experienced and qualified personnel.
– Hook up the unit with the electrical power shut off.
Table 9
Description
Connection
Power input
0 V
24 V
Relay 1
1a
1b
Relay 2
2a
2b
Loop 1 and Loop 2
Connector block with 4 - poles
Installation examples
Roadway
2m
1m
1
Roadway
0,8m
0,8m
2m
2m
2
Roadway
Gate
1m
1m
1m
>1m
3
Roadway
B
A
C
D
4
5-8 mm
A
B
D
C
30
-5
0m
m
5
Fig. 1 -
Recommended for cars,
lorries, buses
Fig. 2 -
Recommended for motor-
bikes and bicycles
Fig. 3 -
Applications requiring low
sensitivity at the side
Fig. 4 - (A)
Floor
(B)
Twisted wire
(C)
Groove
(D)
Loops
Fig. 5 - (A)
Sealant
(B)
Groove
(C)
Twine
(D)
Loops
7 - DISPOSAL OF THE PRODUCT
This product constitutes an integral part of the automation system, therefore it must be dis-
posed of together with it.
As in installation, also at the end of product lifetime, the disassembly and
scrapping operations must be performed by qualified personnel. This product is made up of different types
of material, some of which can be recycled while others must be disposed of. Seek information on the
recycling and disposal systems envisaged by the local regulations in your area for this product category.
– Some parts of the product may contain polluting or hazardous substances which, if disposed
of into the environment, constitute serious environmental and health risks.
As indicated by the symbol, the product may not be disposed of as domestic waste. Sort the
materials for disposal, according to the methods envisaged by current legislation in your area,
or return the product to the retailer when purchasing an equivalent product.
- Local legisla-
tion may include the application of serious fines in the event of improper disposal of
this product.
8 - TECHNICAL SPECIFICATIONS
Note
: • All technical specifications stated herein refer to an ambient temperature of 20° C (± 5° C). • Nice S.p.A.
reserves the right to apply modifications to products at any time when deemed necessary, maintaining the same
intended use and functionality.
•
Dimensions:
79 x 22.5 x 90 mm (H x W x L without plug) •
Protection type:
IP40
• Power supply:
24
V / ±10 % max. 2.0 W •
Operation temperature:
-20°C to +70°C •
Air humidity:
max 95% with
no condensation •
Loop inductivity:
25-800 μH, recommended 100-300 uH •
Frequency range:
30-
130 kHz in 2 steps •
Sensitivity:
from 0.01% to 0.64 % (Δf/f) in 4 levels - from 0.02% to 1.3% (ΔL/L) •
Delay:
5 min or uninterrupted •
Electric power line of the loop:
max. 250 m •
Loop resistance:
max.
20 Ohm (including power line) •
Relay:
250 mA / 24 V / (min.1 mA/5 V) •
Energise delay:
normally
100 ms •
Signal duration:
> 200 ms •
De-energise delay:
normally 50 ms •
Connection:
Screw ter-
minals (power supply, relay) – Snap-on terminal clamps (loops connection)
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Nice S.p.A.
Via Pezza Alta, 13
31046 Oderzo TV Italy
IS0426A00MM_04-11-2016
