User, installation and
safety instructions
Nice
LP21
EN
5 - OUTPUTS AND LED INDICATORS
5.1 - Status of the relay contacts
The following table shows the location of the relay contacts depending on the status of the detec-
tor (see table 4).
Table 4
Detector status Presence relay Pulse relay
Free loop closed open open
Occupied loop open closed open
Loop is now free closed open 200 ms pulse
Loop fault open closed open
Tension is off closed closed open
In the event of loop faults, the detector will cyclically check the status of the loop and will automati-
cally resume normal operation after the problem has been solved.
- 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 components or conductors! The warranty will be nullied for damages caused by im-
proper handling!
5.2 - LED indicators
The green LED indicates that the detector is ready for operation. The red LED, depending on the
occupation status of the loop, indicates the activation of the relay output (see table 5).
Table 5
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 frequency of the loop is shown by the ashing
green LED signal. 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 ash 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 ash 10 times. The 1 kHz position ashes are slightly shorter than the 10 kHz position ashes.
Example of 57 kHz loop frequency:
Tens Units
5x 10 kHz 7x 1 kHz
6 - ELECTRICAL CONNECTIONS
- Warning!
– Incorrect connections can cause faults or hazards; therefore ensure that the specied
connections are strictly observed and performed by experienced and qualied person-
nel.
– Hook up the unit with the electrical power shut off.
24V0V 28
1516 25
~/= V42
DNG / V0
r
h
s
5'/oo
/
VEK M1H
Sensitivity
Delay
Relay operating principle
High frequency
Low frequency
Continuous signal Pulse signal
7 - DISPOSAL OF THE PRODUCT
This product constitutes an integral part of the automation system, therefore it must be
disposed of together with it. As in installation, also at the end of product lifetime, the disas-
sembly and scrapping operations must be performed by qualied 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 legislation may include the application of serious nes 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.1.5 W • Operation temperature: -20°C to +70°C • Air humid-
ity: max 95% with no condensation • Loop inductivity: 25-800 μH, recommended 100-300 uH
• Frequency range: 26-130 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-ener-
gise delay: normally 40 ms • Connection: Screw terminals (power supply, relay) – Snap-on ter-
minal clamps (loops connection)
www.niceforyou.com
Nice S.p.A.
Via Pezza Alta, 13
31046 Oderzo TV Italy
info@niceforyou.com
IS0425A00MM_04-11-2016
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