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PD4-M-HCL 93006/93007
1.3.1. Lightning zone A (main lightning)
The PD4-M-HCL allows you to compensate for differences in
brightness due to daylight coming from one side of a room fully
automatically, using segmented constant light regulation in
lighting zone A across 3 groups. Fittings with DALI electronic
ballasts are thus grouped as follows:
•
Group 1: for areas with little daylight
areas away from the windows
•
Group 2: for neutral areas
for example the central lighting run
•
Group 3: for areas which may have strong daylight
areas near the windows
Groups 2 and 3 can be set up with a negative offset between 0%
and 25%, and will then scale back their lighting output in relation
to Group 1. In extreme lighting situations (very bright daylight or
no daylight), both offset settings will be automatically reduced to
0%.
1.3.2. Lightning zone B and C (lectern or blackboard lightning)
For teacher or blackboard lighting, lighting zone B (via DALI group
4) and/or lighting zone C (via integrated relay) are available.
In lighting zones B and C, automatic constant light regulation is
disregarded.
1.4. Integrated relay with operating modes
There are 7 different operating modes available on the
integrated bistable relay (potential-free, NO). These cannot be
combined:
•
"Cut-off" – standby current consumption of connected DALI
electronic ballasts is automatically minimised
•
"HVAC" – heating, ventilation and air-conditioning units are
automatically controlled for energy efficiency, depending on
motion detection in the room, using a separately-set follow-
up time
•
"Zone C" – activates lighting zone C with push button input
C, for example to provide teacher or blackboard illumination
without a DALI electronic ballast. The automatic mode
depends on the settings for lighting zone B (Group 4)
•
"CdS" – "cadmium sulfide" – relay works as photo electric
switch
•
"None" for "no function" – relay is not actuated
•
"Alarm impulse" (via operating mode HVAC) – The relay only
closes for 2.5 seconds if at least 3 movements have been
detected during a time period of 9 seconds. This function can
be used to display a presence in the room on external
visualisations. (Warning: The device does not fulfil the
requirements of DIN EN50131-2-2 and therefore cannot be
used in professional intrusion detection systems.
•
"Impulse function" (via operating mode HVAC) – The
impulse function can be used to control external HVAC
systems. All 9 s will be set an impulse lasting 2.5 s
50570_V1_Operation_Manual_PD4-M-
HCL_93006_93007_EN_080818
1.5. Full automatic / semi-automatic mode
Lighting zones A and B can be set individually to full automatic or
semi-automatic mode. Lighting zone C always works with the
settings from lighting zone B. In full automatic mode, the light is
turned on automatically when motion is detected and ambient
light is low enough, and turned off after an adjustable follow-up
time and/or when ambient light is bright enough. Semi-
automatic mode works in a similar fashion, except that switching
on the lights must take place via a push button (manual ON/ auto
OFF).
1.6. Push button functions
Conventional NO push buttons can be used.
A short press on all three push buttons, A, B and C, turns the light
in each lighting zone on or off. A long press (> 2 seconds) on push
buttons A and B leads to manual dimming (brightness up or down
– another long press reverses the dimming direction).
Special feature in full automatic mode: if you want to use a short
press to deliberately switch off the light in the room, for example
to show a film or set up a projector, the light remains off until the
follow-up time has expired.
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