LEGRAND Wattstopper FSP-202D Instructions D'installation page 4

Fade Time – Fade times for each mode can be found in the following chart. Note that fade up time in modes B, C, and D is dependent upon
the position of the Set trimpot.
Mode
Set at Minimum
A 1.5 Seconds
B 1.5 Seconds
C
1.5 Seconds
D 1.5 Seconds
E
0 Seconds
Test 0 Seconds
Mode A – High/Low/Off Dimming for Indoor Parking Structure or High-Bay
Features: Transition between High, Low, and Off levels; Adjustable Hold Off Setpoint;
High trim and low dim levels are variable
This mode has a hold off light level set point, which can be adjusted to the desired light level
using Set trimpot, or disabled (when the Set trimpot is turned to the minimum setting).
Anytime occupancy is detected with ambient light level below the hold off set point, the load
turns ON (ramping up to the High trim level).
NOTE: In this mode, since there is no daylighting control, the High Trim level will be the
maximum amount of light for the load. (The High Trim level is set in Mode E.)
Once no occupancy is detected and the time delay expires, the load will fade down to the Low
Dim level which is 10% of High Trim level. As long as the area remains unoccupied, the load
stays at the Low Dim level for half the amount of the time delay, and then load turns OFF.
When the hold off light level set point is enabled using the Set trimpot, once
the Load turns OFF, after 5 seconds if the ambient light level is more than the
set point value, the load will stay OFF even if occupancy is detected. But if
occupancy is detected within the 5 seconds, the load will return to the High
Trim value, even if the ambient light level is more than the hold off level.
NOTE: When you select mode A, The FSP-202D will initially enter Test mode
and stay in test mode for 5 minutes, after which it will switch to mode A
operation. (Test Mode is identical mode to A, with the exception of Time
Delay, which is fixed at 5 seconds.)
Mode B – Continuous Dimming Control with Daylighting (Dim to Off )
Features: Adjustable photocell level to set desired light level when occupied
When the ambient lighting is below the desired light level and occupancy is
detected, the sensor turns the loads ON. The dimming level continually adjusts so
that the dimming amount combined with ambient light matches the desired light
level. If the ambient lighting is above the desired light level when occupancy is
detected, the load will remain OFF until the ambient light drops below the target
level, at which point it will adjust the dimming level appropriately.
Once no occupancy is detected and the time delay expires, the load fades down
to the Low Dim level, which is 50% of the High Trim level. As long as the area
remains unoccupied, the load stays at the Low Dim level for half the amount of the
time delay, and then load turns OFF. If the current dimming level is less than half of
the High Trim value, the load fades down to OFF without any time delay.
NOTE: With the photocell enabled in this mode (as well as in modes C and
D), the High Trim is used only to calculate the Low Dim amount. It
can therefore be set to an amount lower than the maximum dimming
amount, which is set based on the desired light level. For example: if
the High Trim level is set to 8V, in Mode B the Low Dim level will be 4V.
But if the desired light level is set high, the lights might go up to 9V or
10V in order to reach the desired level.
NOTE: If the photocell is disabled in this mode (as well as in modes C and D),
the High Trim amount will be used to determine the desired light level,
as it does in Mode A.
Mode C – Continuous Dimming Control with Daylighting (Dim to
Low Level)
Features: Adjustable photocell level to set desired light level; a minimum
light level is always maintained.
Fade Time – Up
Set at Other
1.5 Seconds
10.5 Seconds
18.5 Seconds
Day: 18.0 Seconds
Night: 13.0 Seconds
0 Seconds
0 Seconds
Fade Time – Down
7.5 Seconds
3.5 Seconds
5.5 Seconds
3.5 Seconds
0 Seconds
0 Seconds
Desired
Light
Level
Low
Dim*
Desired
Light
Level
Low
Dim*
0
Desired
Light
Level
Low
Dim*
Desired
Light
Level
Low
Dim*
0
4
Mode A
Day Night
Time Delay
High
Trim
Low
Dim
0
Occupancy
During Day time, load will not turn ON at
occupancy if ambient light above Hold Off setpoint
Mode B
Target Level
Lighting Loads
Night Day
Time Delay
1/2
Time
Delay
Occupancy
Dimming when
using Photocell
*Low Dim = 50% of High Trim
Mode C
Lighting Loads
Night Day
Time Delay
Occupancy
Dimming when
using Photocell
*Low Dim = 20% of High Trim
Day
1/2
Time
Delay
Daylight
Night
Dimming with
Photocell disabled
Daylight
Night
Dimming with
Photocell disabled