Important Additional Notes
1.
Only suitably qualified personnel should install this equipment.
2.
All terminals on this product are provided for final connections. It is not intended that the product be used as a junction box
for looping cables.
3.
A means for disconnection must be incorporated in the fixed wiring in accordance with the current wiring regulations.
4.
This equipment switches lights no more frequently than would a responsible human occupant. However, manufacturers of
some lighting types (e.g. ‘2D’ luminaires) may specify a maximum number of switching cycles and/or a minimum on-time in
order to achieve a predicted lamp life. Please check with the manufacturer of the luminaires to ensure that they are
compatible with automatic controls in this respect.
Programmable Parameters
Power Up: ON/OFF
Set to ON the detector will automatically switch both outputs on when Mains is applied. If set to OFF, the
detector will power up without turning its outputs on, wait 30 seconds and then look for occupancy. Only if the
area is occupied will the outputs switch on at this time. The detector must be set to Power Up ON to allow
manual switch as opposed to infrared operation, in Semi-Automatic mode. (See below).
Response: AUTO/SEMI AUTO
Where absence detection is required, (i.e. the user manually turns the lights On, if required, but the lights still
turn off automatically once the area is vacated), SEMI AUTO-matic operation should be selected. If the manual
operation is to be effected using ONLY an infrared hand-held controller then Power Up OFF may be used in
SEMI AUTO mode, but if it is desired to use a manual wall switch, Power Up ON coupled with a means of
interrupting the mains power to the MS2021PHB is required, e.g. using a push-to-break momentary switch
capable of switching the load on the Switched Live output, plus the load on the Volt-free output, if this is not
supplied separately.
R1 Off Delay
In all modes this determines the time from the last detection of occupancy to primary Lights Off. It
can be set between 1 minute and 96 hours, or DISABLED so that the lights never turn off for lack of detected
movement.
R2 Off Delay
In Lighting mode this defines the period from last detected occupancy to secondary Lights Off. In
other modes setting this to longer than R1 Off Delay allows for an extended filling time for flush cistern or for
extractor fan or air conditioning run-on. In Emergency Test mode it is not used, so that its configured value is a
"don't care", the duration of the Maintained Live disconnection being set by the HC8 or HP2000 command.
R2 Mode
This sets the mode of operation of the R2 load circuit to one of those discussed opposite
PCELL (Photocell) Mode: PASSIVE / ACTIVE / DISABLED (affects the R1 Load only)
Passive Mode
The photocell will inhibit the turn on of the controlled lights if sufficient natural light is available but it will not
turn the lights off whilst the area is occupied.
Active Mode
The photocell will both inhibit turn on of the controlled lights and turn them off during occupancy if sufficient
natural light becomes available. Turn off occurs when there has been sufficient natural light continuously for
a period of the R1 Off Delay or 20 minutes, whichever is the shorter. There is no delay in switching the
lights back on when natural light reduces.
Disabled
The photocell has no effect and the lights are on for the full period of occupancy plus the Off Delay.
Commissioning
The units are supplied with factory default settings (Power-Up On, fully Automatic operation, Lighting mode,
20 minute Off Delays, Photocell Disabled). Programme using the HP2000 MLS Digital Programmer with
LCD display.
Walk-test Mode
Walk-test mode is used to check that the detector is operating as required. The short off-delay enables the
installer to check that lights are switching on when movements are made at the edge of the detection zone. It is
easier to carry out a walk-test when the photocell is not holding the lights off.
1. Change the Off Delay to 10 seconds using ‘Utilities/Walk Test/OK’ on the HP2000.
2. Move around the area that is being controlled, stopping for 10 seconds to allow the lights to switch off, before moving
and triggering the lights back on. Note: When the HP2000 is used to engage ‘soft’ walk test mode as described
above, the programmed Off Delay will be automatically restored after 5 minutes.
