Lightwave LP81 User manual

Smart Relay with Switch Sense Input (LP81)
SW

Applicaons
The Smart Relay is a very versale device that can be
used to remotely switch on/o a circuit. Because the
relay includes one latching posion, it can be used to
operate devices that require an on/o control.
Loading
The Smart Relay can be used to switch loads of up to
700W. The switched circuit can be mains powered or
volts free (low voltage). Mains power can also be taken
from the Relay itself to power the circuit (see wiring
instrucons for more informaon).
Locaon
The Smart Relay needs to be housed in a suitable
enclosure to minimise the risk of contact with live
electrical wires and to ensure that the device meets
IEC Class II requirements. The Lightwave LW824
Waterproof housing can be used for this purpose and
will also allow the Relay to be installed outdoors.
Range
Lightwave devices have excellent communicaon range
within a typical home, however, if you encounter any
range issues, try to ensure that large metal objects or
bodies of water (e.g. radiators) are not posioned in
front of the device or in between the device and the
Lightwave Link Plus.
Help video & further guidance
For addional guidance, and to watch a video that will
help guide you through the installaon process, please
visit the support secon on www.lightwaverf.com.
Environmentally friendly disposal
Old electrical appliances must not be disposed of
together with residual waste, but have to be disposed
of separately. The disposal at the communal collecng
point via private persons is for free. The owner of old
appliances is responsible to bring the appliances to these
collecng points or to similar collecon points. With this
lile personal eort, you contribute to recycle valuable
raw materials and the treatment of toxic substances.
Installaon
If you plan to install this product yourself, please follow
the electrical wiring instrucons carefully to ensure the
product is installed safely, if in any doubt please consult a
qualied electrician.
It is important to install this product in accordance with
these instrucons. Failure to do so may risk personal
safety, create a re hazard, violate the law and will also
void your warranty. LightwaveRF Technology Ltd will not
be held responsible for any loss or damage resulng from
not correctly following the instrucon manual.
IMPORTANT: Any electrical installaon must comply with
Building Regulaons, BS 7671 (IET Wiring Regulaons)
or local equivalent.
IMPORTANT: If conducng an insulaon resistance test,
any hard-wired Lightwave devices must be disconnected
from the mains, or damage to the unit may occur.
IMPORTANT: High-Power inducve loads can potenally
damage the device and are not recommended.
Preparaon
Suitable electrical screwdrivers
Knowledge of how to safely turn o/on
mains electricity
You will need
Your Link Plus and smartphone
A safe place in which to situate the Relay
RF frequency:
868 MHz
Input rang:
230V~ 50Hz
Device class:
0 (requires housing)
Warranty:
2 year standard warranty
Output rang:
700W
Standby energy use:
Less than 1W
EU Declaraon of Conformity
Product: Smart Relay with Switch Sense Input
Model/Type: LP81
Manufacturer: LightwaveRF
Address: The Assay Oce, 1 Moreton Street,
Birmingham, B1 3AX
This declaraon is issued under the sole responsibility
of LightwaveRF. The object of the declaraon described
above is in conformity with the relevant union
harmonisaon legislaon.
Direcve 2011/65/EU ROHS, Direcve 2014/53/EU:
(The Radio Equipment Direcve)
Conformity is shown by compliance with the applicable
requirements of the following documents:
Reference and date:
EN 60669-1:1999+A1:2002+A2:2008, EN60669-2-
1:2004+A1:2009+A12:210, EN 55015:2013+A1:2015,
EN 61547:2009, EN 61000-3-2:2014, EN 61000-3-
3:2013, EN 62479:2010, EN 301489-3 V2.1.1, EN
300 220-1 V3.1.1 (2017-02), EN 300 220-2 V3.1.1
(2017-02)
Signed for and on behalf of:
Place of Issue: Birmingham
Date of Issue: February 2022
Name: John Shermer
Posion: CTO
1UK
Specicaon
Wiring terminals
Neutral wire
connecon
This wire is usually blue
or black in colour
Line wire connecon
This wire is usually brown
or red in colour
Terminal screws
Flip down cover to expose
terminal screw heads
Main buon
Hold to enter linking
mode. Click to operate
the Relay.
LED indicator light
The colour indicates the current posion of the relay.
Red (or user customisable): circuit not connected.
Blue: circuit connected.
Fuse access
T5AH250V
Mounng bracket

Neutral wire connecon
This wire is usually blue or
black in colour
Installing the Relay
Carefully follow the instrucons in this secon in
order to install the Relay. Please remember that mains
electricity is dangerous. Do not take any risks. For other
advice, please contact our dedicated technical support
team at www.lightwaverf.com.
The easiest way to learn how to install the Lightwave
Smart Relay is to watch our short installaon video which
is accessible at
www.lightwaverf.com/product-manuals
1.1 Prepare a suitable locaon
The Smart Relay is a class 0 device which means that it
should be housed in a suitable dry locaon and electrical
housing to minimise the risk of contact with live electrical
wires. If in doubt, consult an electrician.
1.2 Turn o the electricity supply
Turn o the mains power supply to your exisng power
circuit at the consumer unit.
1.3 Connect to mains power
Although the Smart Relay can be used to provide volts
free (non mains) switching, it ALWAYS requires mains
power to operate. Connect the line and neutral power
cables to the Relay as shown in the diagrams. Be aware
that exisng cables can vary in colour and may not
always be correctly labelled. If in any doubt, always
consult a qualied electrician.
23
Linking the Relay & other funcons
Unlinking the Relay (clear memory)
To unlink the Relay, enter linking mode by holding down
the main buon unl the LED ashes red. Release the
buon, then hold it for a second me unl the LED
ashes red to conrm that the memory has been cleared.
Firmware updates
Firmware updates are over-the-air soware
improvements that keep your device up to date as well
as providing new features. Updates can be approved
from the App before being implemented, and generally
take 2-5 minutes. The LED will ash cyan in colour
during an update. Please do not interrupt the process
during this me.
Error reporng
A permanently ashing red LED indicates that a
soware or hardware error has been encountered.
Press the main buon to reset the device. If the error
light persists, please contact Lightwave support via
www.lightwaverf.com/support.
Follow the in-app instrucons which
will explain how to link devices.
On the Relay, press and hold down
the main buon unl the LED ashes
blue and red alternately then release it.
The Relay is now in linking mode.
Using the App, press the buon to link
to the device (the App instrucons will
guide you through this). The indicator
on the Relay will ash to conrm that
it is now linked.
Linking
To be able to command the Relay, you will need to link it
to the Link Plus.
1 Adding mains voltage to a circuit (A)
In this case, mains voltage is ‘jumped’ from the main
incoming line feed to the COM terminal by the
addion of a connecng ‘jumper’ wire. Mains power
can now be used to drive the single circuit illustrated
in diagram A.
A
SW B
C
D
Connect the circuit
The Smart Relay can be used to provide up to 700W of mains powered switching OR separate volts free switching for circuits not requiring addional mains power. The Relay latches between
NO and COM. Follow the instrucons below.
Common connecon
(Mains 230V)
Common connecon
(Mains 230V or can be low voltage)
Switch
(230V AC)
Switch
Load
Switched connecon
Connecon to the
switched circuit.
Switched connecon
Connecon to the
switched circuit.
Switched connecon
Connecon to the
switched circuit.
3 Switching a single circuit (C)
Use this conguraon to switch a single circuit
(can be low voltage) that does not require mains
power to be provided from the Relay’s line (L) and
neutral (N) terminals.
2 Switch sense (B)
In addion this device has a “switch sense” terminal
(diagram B) that can detect the ‘on’ or ‘o’ posion of
an external switch such as a normal light switch.
The acon of the external switch can then operate
the internal relay and / or be detected by the Link+
to trigger another device or devices or an automaon.
Any switch or circuit connected to the “switch sense”
input must be suitable for “230V AC” mains power.
4 Switch Sense (D)
The ‘switch sense’ relay output conguraon can be
230V mains (B) or volts free low voltage output (D).
X X CCOM X OM X LL N N
Line wire connecon
This wire is usually
brown or red in colour
Neutral wire connecon
This wire is usually blue or black
in colour
Line wire connecon
This wire is usually brown
or red in colour
SW
SW
SW

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