Extronic NP-2T DL Installation Instructions Manual

Description

The NP-2T DL level switch is intended for dynamic lighting
control using dimmable light fittings with digital DALI control,
in order to reduce the lighting time of fluorescent light sources
and prolong their life. It is used in combination with one or more
presence detectors (e.g. PD-2200) in areas such as corridors,
stairways and garages.
See the application examples in this manual, in the Planning
Guide in the Energy-saving Detection Technology manual and
at www.extronic.se, (see also applications for NV-2T).

Dynamic lighting control

Dynamic lighting control means that the power output (lighting
level) is adjusted to the normal lighting level (often 80 per cent)
when presence is detected in the premises. When presence is
no longer detected the lighting is reduced to the base level (the
lowest possible level, often 1–2 per cent).
If someone enters the premises again the lighting is ramped up
to the normal level.
If the premises remain empty until the timer in NP-2T DL has
counted down (recommended setting 1–2 hours), the lighting is
switched off completely.
The reason why the lighting is not switched off as soon as the
premises are empty is that frequent switching causes accel-
erated wear to the fluorescent tubes and shortens their lives.
If LED light fittings are installed, this feature can be used to
provide background lighting or ambient lighting.

Basic operation

•
When someone enters the premises the lighting is switched
on at the normal level (High level) when presence is detec-
ted by the presence detector.
•
When presence is no longer detected the lighting is switched
to the base level (Low level) and the timer starts counting
down the preset time (0–120 minutes).
•
When this time has run out the lighting is switched off com-
pletely.
If someone enters the premises while the timer is counting
down, the lighting is switched from the base level to the normal
level, and the timer restarts the countdown when presence is no
longer detected. If someone enters
the premises when the lighting has been switched off com-
pletely, it is immediately switched back on at the normal level.
LEVEL SWITCH NP-2T DL v1.0
Installation instructions
Order no. 13180

Features

•
Controls DALI light fittings using broadcast commands.
•
No programming is required.
•
Built-in power supply for DALI bus.
•
Supply voltage 230 VAC.
•
Add Detector Time. Allows detector delay time to be set in
addition to time in detector.
•
SoftDim allows the lighting to be ramped up and down
gradually. The ramp-up rate is adjustable, but the dimming
rate is fixed.
•
Fluorescent Tube Burn-In. A button that delivers 100 per
cent power for 100 hours to burn in new tubes.

Inputs and outputs

•
Output for DALI light fittings.
•
Input for presence detector or logic module.
•
Blocking input. If a light sensor is connected it can prevent
the lighting from being switched on when there is sufficient
natural light.
•
Pushbutton input. If one or more pushbuttons are connec-
ted (in parallel) the lighting can be switched on or off and
ramped up or down manually.
•
Relay output for driving a contactor with adjustable timer
(0–120 minutes).
•
12 VDC supply for IR detectors (max. 8 detectors).
14 15 16 17 18 19 20 21 22 23 24 25
Level switch NP-2T DL
+15-16
Light
DA+DA-
Light Extronic • Stockholm • Sweden
Sensivity
Bus power supply and bus controller
for digitally dimmable luminaires.
Timer for switching off the light.
Input supply:......................................... 100 - 240 VAC
Output supply (detector):...................... 12 VDC, 200 mA
Light Output supply digital communication:... 21 V, 200 mA
Sensor Switch
Timer:..................................................... 0 - 120 minutes
4 - 5 6 - 7
1 2 3 4 5
Pushbutton
Auto
Presence Presence
Timer
up to two hours
No presence
Rest
No presence
19-20 22-23-24
230VAC Relay
L-N
C-NO-NC 100% 100%
100h 100h
High
Timer
Level
30m
NP-2T DL
15m 1h
Low
0
2h
Level
Add
Det. Time SoftDim
5
10
2,5
Det +12VDC-
0 20
+minutes
8 - 9 10 - 11
6 7 8 9 10 11 12 13
Manual
"High level"
Red knob 80%
"Low level"
Blue knob1%
Completely
off