Nice LP21 User, Installation And Safety Instructions

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
Free loop closed
Occupied loop open
Loop is now free closed
Loop fault open
Tension is off closed
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 nullified 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 Red LED
loop control loop status
Off Off
Flashing light Off
On Off
On On
Off On
5.3 - Loop frequency indication
About 1 s after the adjustment of the detector, the frequency of the loop is shown by the flashing
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 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
1 s
5x 10 kHz
6 - ELECTRICAL CONNECTIONS
- Warning!
– Incorrect connections can cause faults or hazards; therefore ensure that the specified
connections are strictly observed and performed by experienced and qualified person-
nel.
– Hook up the unit with the electrical power shut off.
Pulse relay
open open
closed open
open 200 ms pulse
closed open
closed open
Detector status
No power voltage
Frequency indication or adjustment 7 - DISPOSAL OF THE PRODUCT
The detector is ready, free loop
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-
The detector is ready, occupied loop
sembly and scrapping operations must be performed by qualified personnel. This product is made
Loop fault
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.
or hazardous substances which, if disposed of into the environment, constitute serious
environmental and health risks.
8 - TECHNICAL SPECIFICATIONS
Units
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.
7x 1 kHz
• Dimensions: 79 x 22.5 x 90 mm (H x W x L without plug) • Protection type: IP40 • Power
supply: 24 V
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)
2 4 V = ~ /
0 / V G N D
0V 24V 28
s
Sensitivity
Delay h
5'/oo
r
Relay operating principle /
High frequency
Low frequency
VEK M1H
16 15 25
Continuous signal
– Some parts of the product may contain polluting
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 fines in the event of
improper disposal of this product.
±10 % max.1.5 W • Operation temperature: -20°C to +70°C • Air humid-
/
Nice
LP21
User, installation and
safety instructions
Pulse signal
IS0425A00MM_04-11-2016
/
EN
Nice S.p.A.
Via Pezza Alta, 13
31046 Oderzo TV Italy
www.niceforyou.com
info@niceforyou.com