CP Electronics MWS6-PRM-LV User Manual

Product Guide
MWS6-PRM-LV
Ceiling Microwave presence/absence detector 12-24V AC/DC
Overview
The MWS6-PRM-LV Microwave presence detector provides automatic control of low voltage loads including lighting and BMS systems with optional manual control. The MWS6­PRM detects movement using a highly sensitive microwave detector. This works by emitting low power microwave signals and measuring the reflections as the signals bounce off moving objects. Functioning as a presence detector, the unit can turn lights on when a room is occupied and off when the room is empty. Optional settings allow lights to be turned off in response to ambient daylight. All functionality is fully programmable using an IR handset.
MWS6-PRM-LV
Ceiling Microwave presence/absence detector 12-24V AC/DC
MWS6-PRM-LV-GOLD
Ceiling Microwave presence/absence detector 12-24V AC/DC for low current
MWS6-PRM-LV-OC
Ceiling Microwave presence/absence
detector 12-24V AC/DC and open collector output
Front features
Mounting Bezel
Back features
Retaining Spring
Sensor Lens
which covers...
Microwave Sensor
IR Receiver
Light Level Sensor
Status LEDs
Switch Input
Connector
Features
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
Measures the overall light level in the detection area
Status LEDs The LED flashes Red to indicate the following:
Walk Test LED active
Valid setting received
Power Input & Output Connector
Used to connect power to the unit and to connect a switched load.
Switch Input Connector
Two input terminals can be used to manually override the lights on or off.
when movement is detected
Power Input & Output Connector
Retaining Spring
Detection diagram
Area of lower sensitivity Area of high sensitivity
Sensor functionality
Detection Mode
The Detection Mode can be set to behave in Presence or Absence mode: Presence 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.
Absence The load is manually switched on. When the area is no longer occupied the load will automatically switch
off after the adjustable time period has elapsed.
In either case, sensitivity to movement of the Microwave sensor can be adjusted using the Sensitivity parameter.
HINT: To assist in setting the Sensitivity, turn on the Walk Test LED which will flash red when movement is detected.
Switch Level On/Off
Occupancy detection can be made dependant on the ambient light level using the Lux On Level and Lux Off Level parameters.
2
OUT
+
COM
MOMENTARY PUSH TO
MAKE SWITCH
Optional for presence,
mandatory for absence detection
OUT
+
COM
INTERNAL OPEN
COLLECTOR
TRANSISTOR
LOAD
OUT
+
COM
AC Supply
10VAC - 26.5VAC
MOMENTARY PUSH TO
MAKE SWITCH
Optional for presence,
mandatory for absence detection
DC Supply
11.5VDC - 36VDC
OR
-
+
INPUT & SWITCH CONNECTIONS
OUT
+
COM
AC Supply
10VAC - 26.5VAC
MOMENTARY PUSH TO
MAKE SWITCH
Optional for presence,
mandatory for absence detection
DC Supply
OR
-
+
OUT
+
COM
LOAD
INTERNAL
RELAY
OUT
+
COM
INTERNAL OPEN
COLLECTOR
TRANSISTOR
LOAD CONNECTIONS
-PRM-LV/OC
LOAD
Installation
Choosing a Suitable Location
The detector should be sited so that the occupants of the room fall inside the detection pattern shown opposite).
Avoid positioning the unit where direct sunlight may enter the sensor element.
Do not site the sensor within 1m of any lighting, forced air heating or ventilation.
Do not fix the sensor to an unstable or vibrating surface.
Avoid metallic objects directly in front of the sensor head.
Input and switch connections
Load connections - PRM-LV and PRM-LV-GOLD
Load connections - PRM-LV-OC
Absence detection
To use absence detection a retractive (momentary) switch must be connected between the 2 terminals on the
diagram.
The unit ships with presence detection as default. To change to absence detection, press and release the external
switch 5 times within the first minute of power up. The LED will turn on solid for 30 seconds to indicate absence mode has been selected.
To change back to presence detection, repeat the above procedurethe LED will flash for 30 seconds to indicate
presence mode has been selected.
Note: the above adjustments can also be made using the UHS5 or UNLCDHS handsets. See Programming sections.
When power is applied to the unit, the load will turn on immediately.
Set the timeout to 10 seconds, vacate the room or remain very still and wait for the load to switch off .
Check that the load switches on when movement is detected.
The unit is now ready for programming.
Power-up test procedure
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