Man. dim.
Disabled Disabled
M1 M2
daylight linking always running when lights ON.
dimmer (daylight linking disabled until next ON).
Limits the wall switch to just ON & OFF control i.e.
Flex Connectors Limited, Unit 8, The Gate Centre, Syon Gate Way, Brentford, Middlesex TW8 9DD, UK. Website: www.flexconnectors.co.uk Email: info@flexconnectors.co.uk
use the table to find the option explained.
below. Options available vary according to the sensor type. In order to asertain the type and therefore which options can and can't changed use the flow chart below. Then
PresenceDay. dep.
Enabled Enabled
Enabled Enabled
Disabled Disabled
Disabled
D1 D2
P1
Note: Shaded buttons are default factory settings.
Enabled
Presence Day. dep Man. dim
Disable Disable Disable
P1 D2 M1
Dimmable
Enable Enable Enable
Operational options are factory set to those considered most likely required. We therefore only recommend changing an option after careful consideration of the information
Important:
Connection unit
frc/set Remote Control
S
The frc/set remote control is
used for setting up any of the
Flex Connectors Value range or
Control plus range of sensors.
Parameters such as
occupancy time-out, light
target-level and up to three
operational options can all
be set up using the
frc/set remote control.
Switch drop
lead
Sensor
lead
fnh400
or
fnh200
Sensor head
frc/set
Set up remote
Control
ON (always requires a switch operation).
too dark - i.e. Daylight dependent.
i.e. Daylight dependency disabled.
Lights switch OFF when too bright and ON when
Lights will not react to any changes in light level.
Enables wall switch (with long pulse) to work as a
provided the sensor has timed-out.
Occupancy (presence) can initiate the lights ON
Occupancy (presence) can never initiate the lights
Presence Day. dep Man. dim
Disable Disable Disable
P1 D1 M2
Enable Enable Enable
controller dimmable
or just ON/OFF?
Is the sensor
Yes No
fnh400 fnh200
Light cell
ON/OFF
by a momentary switch?
Are the lights operated
Controller
Optional
switch
Setting up Time-Out
Man. dim.
disables daylight dependency (until next ON).
disabled by wall switch.
Daylight dependency can not be temporarily
Long 'on pulse' on wall switch temporarily
Day. dep.
brightness (does not switch OFF).
(don't use if some lights on circuit are non-dimmable)
Lights can only daylight link down to minimum
Option not
Presence
available
Disable
Day. dep Man. dim
Disable Disable
has been set. Note: if there is no confirmation flash try the set up again.
the button and the LED will flash just once more to confirm the option
on the sensor head stops flashing (usually after 5 secs). Then release
Lights can daylight link all the way down to OFF
D2
Press and hold the desired enable or disable button until the green LED
Setting an option
Option not
available
Option not
Presence Day. dep Man. dim
available
Disable Disable Disable
D1
Option not
available
Presence Day. dep Man. dim
Disable Disable Disable
P1
Option not
available
M1
Presence Day. dep Man. dim
Disable Disable Disable
P1
Option not
available
Option not
available
Dimmable
Enable
Enable Enable
controller dimmable
or just ON/OFF?
Is the sensor
No
Enable Enable Enable
ON/OFF
No options
available
Dimmable
Enable Enable Enable
by a momentary switch?
controller dimmable
or just ON/OFF?
Is the sensor
Enable Enable Enable
ON/OFF
Are the lights operated
Yes
Occupancy & light level
Operational Options
Considerations before installation
I.R.
fnh200
receiver
fnh400
Light cell
I.R.
receiver
fnh/slave
fnh/slave does not require
Type of sensor
head?
fnh200 or fnh400 sensor heads shown above.
Check the sensor head is powered by observing the green
LED flashing whenever occupancy is detected.
Before starting ensure your sensor head is one of either the
setting up, it inherits occupancy
time-out period from its parent
fnh200 or fnh400 sensor head
connected in parallel.
frc/set
Use for occupancy walk
Occupancy only
test or to demonstrate
daylight linking / daylight
dependency reacting
faster than usual.
See setting light level.
2, 5, 10, 20 and 40 mins.
}
17/261 issue 1 07/07/2008
Disables occupancy.
i.e. occupancy has no
effect on the lights.
To set a time-out:
Using the remote control press and hold
the desired time-out button until the
green LED on the sensor head stops
flashing (usually after 5 seconds). Then
release the button and the LED will flash
just once more to confirm the time-out
has been set. If the confirmation flash
was not observed - try the set up again.
Note: To find out the current stored timeout value, momentarily press the ' '
button. The green LED will then flash a
number of times corresponding to the
current stored time-out
Test
10 secs
Time-out/mins
Test 10s
1No. of flashes
5
2
2
10 20 40
5
3
4
Disable*
7
6
Setting up Daylight Linking / Dependency
Before starting ensure your installation is complete, all
lights are operational and preferably any furnishings are
fnh400
in their final positions. Note that only the fnh400 sensor
head (shown on the right) is capable of light level sensing.
Light cell
Background information
The sensor head uses the area below it to sample reflected light from the floor / desk. This local area
is considered as the controlled zone. Any lighting beyond the controlled zone can be
sympathetically illuminated provided the degree of any contribution of daylight is constant across the
area - in other words do not attempt to control large areas where the daylight contribution is
inconsistent across the area being controlled.
Determining your type of control unit
The sensor installation includes a control unit which may now be hidden from view behind the ceiling.
In order to identify which type it is try out the Dim up , Dim down , ON and OFF buttons
of your remote control.
Note: If you have a latched override wall switch fitted ensure it is in the 'sensor' position.
If you can: Dim up / Dim down the lights - you have a dimmable control unit and will be setting
up a target level for daylight linking
If you can: Only turn the lights ON and OFF - you have an 'ON / OFF' control unit and will be
setting up a target level for daylight dependency.
In either case the procedure to set up the target level is the same.
On
I.R.
receiver
Off
How does Daylight linking work?
For dimmable control units only (see under - determining your type of control).
Lights are automatically regulated to compensate for any changes in ambient light in order to maintain
a constant light level (target level) under the sensor head.
Note: Daylight linking can work in one of two ways:
If daylight dependency is disabled (see options) - Lights can only daylight link down to a minimum
brightness (i.e. they do not switch OFF completely).
If daylight dependency is enabled (see options) - Lights can daylight link all the way down to OFF.
More precisely - if, after 5 minutes, of daylight linking at minimum brightness and the detected light
is still significantly brighter than the target-level - the lights will switch OFF completely.
(5 seconds if occupancy time-out is set to 'test 10 secs').
The lights will turn back ON again, if the detected light level subsequently falls below the target-level.
How does Daylight dependency work?
For ON/OFF control units only (see - determining your type of control)
Lights switch OFF - if, for a period exceeding 5 minutes:
Detected light level > target level + (the lights own contribution x 125%).
(5 seconds if occupancy time-out is set to 'test 10 secs').
Lights switch ON - provided they would otherwise be ON with occupancy, if:
Detected light level < target level.
Note: Target level = the minimum illumination required.
Achieving and setting the target level
Use a light meter held at arms length and at waist height so that the
meter is pointing up at the sensor head (not directly into any one
fitting). Adjust the lights to desired level (target level) using the
On Off
' ' / ' ' (ON / OFF) buttons or if dimmable fittings, the ' ' / ' '
(Dim up / Dim down) buttons. In the event that there is too much
daylight and you can not get down to the desired illumination it may be
necessary to close blinds / curtains etc. or to carry out the set up at
night. Once satisfied with the light level, stand slightly away from the
sensor and using the remote control press and hold the ' ' (set light
level) button until the green LED on the sensor head stops flashing
(usually after 5 seconds). Then release the button and the LED will
flash just once more to confirm that a light level setting will be
attempted. The sensor head now runs through a routine to record the
light level under various conditions - this means the lights will turn 'ON'
or 'OFF' and possibly dim down over a period of the next 5 - 10
seconds. The exact routine will vary depending on your type of control
unit. Provided this sequence was observed the target level has now
been set.
Testing daylight linking / daylight dependency
To observe daylight linking / daylight dependency at work, set the occupancy time-out to ' ' (Test 10
secs' (see under - setting up time-out)). In this mode, dimmable fittings react to changes in ambient
light twice as fast as usual and daylight dependency (if enabled) can switch the lights OFF within 5
seconds (rather than the usual 5 minutes).
Note: It may be necessary, whilst testing, to maintain occupancy to avoid an unwanted occupancy
time-out.
Set
light
level
Test
10 secs
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