C.P. Electronics MWS1A-C-PRM-LV Manuel utilisateur

Overview

The MWS1A-C series of microwave presence detector

switches are designed to provide automatic control of

lighting, heating or ventilation loads. The MWS1A-C

detects movement using a highly sensitive microwave

detector. This works by emitting low power microwave

signals and measuring the reflections as the signals

bounce of moving objects. The MWS1A-C is optimised for

ceiling mounting applications to give detection over long

distances.

When movement is detected the load is turned on. When

an area is no longer occupied the load will switch off after

an adjustable time out period.

The internal light sensor provides additional energy saving

in lighting applications. When an area is occupied lighting is

only switched on when the level of natural light is below a

preset level.

Three variants are available

MWS1A-C-PRM Mains voltage, switched live contact

MWS1A-C-PRM-VFC Mains voltage, isolated changeover

contact

MWS1A-C-PRM-LV Low voltage, isolated changeover

contact

Features

Microwave Sensor

Detects movement within the unit’s detection range,

allowing load control in response to changes in occupancy.

IR Receiver

Receives control and programming commands from an IR

(infrared) handset.

Light Level Sensor

An integral adjustable photocell allows the lights to be kept

off if there is sufficient ambient light.

Presence detection

When movement is detected the load will automatically turn

on. When the area is no longer occupied the load will

automatically switch off after an adjustable time period.

Status LED

The LED flashes Red to indicate the following:

Fig 1: Front features

Walk Test LED active when movement is detected

Valid setting received

Microwave Presence Detector - ceiling mounted

MWS1A-C-PRM

Product Guide

Sensor Lens

which covers...

IR Receiver

Light Level Sensor

Status LED

Mounting screw covers

Installation

BS4662 square

back box

DIN standard round

back box

To switch from more than one position simply wire two or more units in parallel to achieve two way and intermediate

switching.

The detector should be sited so that the occupants of the room fall inside the detection pattern shown overleaf, at a

recommended height of 2.8m for ceiling mounted sensors. Note that the higher the sensor is installed the shorter the

detection range will be.

 Do not site within 1m of any lighting or ventilation equipment.

 Do not fix to a vibrating surface.

 Site as far away as possible from the surface of metal objects.

Back box Compatibility Mounting

The MWS1A-C is designed to fit both UK and EU style

backboxes.

Wiring

25mm

Do not over tighten

Mounting screw cover

MWS1A-C-PRM MWS1A-C-PRM-VFCMWS1A-C-PRM-LV

L/OUT

Neutral

Circuit protection

(if required)

Load

Neutral Live out

Live

NC NO

COM

Neutral

Circuit protection

(if required)

NC NO

Live

Fault finding

What if the load does not turn ON?

 Check to see if the live supply to the circuit is good. For the MWS1A-C-PRM version only: strap across the L and

LIVE OUT terminal to turn the load on.

 If the supply and wiring are good, check the LUX level setting. Increase the LUX level setting to allow the

controller to turn on at higher ambient natural light level.

What if the load does not turn OFF?

 Ensure that the area is left unoccupied for a greater time period than the time out period set using the switch.

 Make sure that the sensor is not adjacent to vibrating surfaces or objects (e.g. ventilation equipment).

 The unit may pick up movement through thin partitions or ceilings. Reduce the sensitivity.

COM

Programming

Parameter

Name

Default

Value

0123UHS5 Handset Graphics Description

Button Activation

On / Raise On Turn lights on.

Off / Lower Off Turn lights off.

Walk test Off On Off When set to On this causes a red LED to

flash on the sensor when it detects

movement. Use this feature to check for

adequate sensitivity levels.

Time Out

(Time

adjustment)

10 mins 1, 10 &

minutes

5, 15 &

minutes

Once the detector is turned on, this value

sets how long the lights will stay on once

movement has ceased.

Lux on level

(Switch

level on)

9 2, 5 & 7 4, 6 & 9 Lux level setting to prevent the luminaires

being switched on if the ambient light level

is sufficient (adjustable between 1

and 9). The luminaires will always be

switched on at level 9.

Lux off level

(Switch

level off)

9 2, 5 & 7 4, 6 & 9 Lux level setting to switch the luminaires off

during occupancy if the ambient light level

goes above the setting (adjustable between

1 and 9). Level 9 will always keep the lights

on. This setting can be used for “window

row switching”.

Sensitivity 9 1, 5 & 9 3, 6 & 8 Sensitivity level for detecting movement.

1 = low sensitivity

9 = high sensitivity

Defaults D Returns the unit to the default settings.

Shift Use this button to select the settings in red

and blue signified by the ‘Shift 1’ and ‘Shift

2’ LEDs

Number of Shift key presses

The functionality of the MWS1A-C is controlled by a number of parameters which can be

changed or programmed by any of the following devices:

 UHS5 Infrared Handset. See below for programmable functions.

 UN-LCDHS Infrared Handset (with LCD). See user guide for full programming details.

For most basic programming operations the UHS5 handset can be used and the following

procedures are based on using this device.

Point the handset at the Sensor and send the required programming commands to the unit

as shown below.

Valid commands will be indicated by a red LED flash. See page 1 for details of other LED

responses.

Note: other functions on the UHS5 which are not shown below are not applicable to this

product.

SHIFT 1 SHIFT 2 SHIFT 1 SHIFT 2SHIFT 1 SHIFT 2SHIFT 1 SHIFT 2

C.P. Electronics Ltd

Brent Crescent

London

NW10 7XR

United Kingdom

Tel: + 44 (0) 333 900 0671

Fax: + 44 (0) 333 900 0674

www.cpelectronics.co.uk

enquiry@cpelectronics.co.uk

Code suffix Region Frequency

blank UK, China, India, Middle East, Malaysia, Hong Kong, Singapore 10.587GHz

-R2 Australia and all of Europe except:

UK, France, Portugal, Germany, Switzerland, Austria, Slovak Republic, Republic of

Ireland

10.525GHz

-R5 Republic of Ireland 10.41GHz

The allowable frequency of operation of this product is different depending on region. Please select the correct order

code using the table below.

Frequency compatibility

Ref: #WD416 Issue 2

FM 45789 EMS 534520

Part numbers

MWS1A-C-PRM Microwave presence detector (ceiling mounting)

MWS1A-C-PRM-LV Microwave presence detector (ceiling mounting) Low Voltage

MWS1A-C-PRM-VFC Microwave presence detector (ceiling mounting) Volt Free Contact

Technical data

Detection pattern Dimensions

MWS1A-C-PRM

Supply Voltage 230VAC +/- 10%

Frequency 50Hz

Power consumption On 1.15W

Off - 790mW

Load 10A of lighting and or ventilation

including incandescent, fluorescent,

compact fluorescent, low voltage (switch

primary of transformer).

MWS1A-C-PRM-LV

Supply Voltage Min 11.5VDC max 36VDC, min 10VAC

max 26.5VAC

Power consumption On 1.01W

Off - 712mW

Load Low voltage supply with relay

output rating 16A resistive 10A inductive

MWS1A-C-PRM-VFC

Supply Voltage 230VAC +/- 10%

Frequency 50Hz

Power consumption On 1.15W

Off - 790mW

Load Normally closed contact

2 Amp maximum

Minimum load 100mA

Normally open contact

6 Amp fluorescent lighting and resistive

3 Amp compact fluorescent lighting

3 Amp low energy lighting

3 Amp low voltage lighting (switch primary

of transformer)

Fluorescent lighting (max 6 fittings

recommended)

For fluorescent lighting total power factor

correction capacitance must not exceed

40μF.

3 Amp fans and ventilation equipment

Switch SON lighting loads via a contactor

Minimum load 100mA

All models

Weight 0.1kg

Terminal Capacity 2.5mm2

Time out period Adjustable 10 seconds to 99 minutes.

Light level Optional adjustment by using IR

programming handsets.

Fixing method Surface fixing

35mm deep plastic surface mount moulded

box.

Flush fixing

25mm steel backbox or 25mm deep cavity

backbox.

Temperature -10ºC to 35ºC

Humidity 5 to 95% non-condensing

Material (casing) Flame retardant ABS Type Class 2

Compliance EMC-2004/108/EC

LVD-2006/95/EC

Safety The microwave radiation emitted by these

units is extremely low power. At a distance

of > 50mm the power density is <6% of the

ANSI IEEE C95.1 –1991 recommended

microwave power density.

At a distance of 5mm from the unit it is

<84% of recommended power density.

Due to our policy of continual product improvement CP Electronics reserves the right to alter the specification of this product without prior notice.

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