Honeywell PEHA LightSpot Mid Range Series Installation And Commissioning Instructions page 9

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Parameter Options (Default Setting)
On / Off
Power up
Auto / Manual/Bus / Manual Only
Response
Off Delay 1 min-96 hrs, 10 secs (walk test),
Disabled / 20 min
On Sensitivity 1-100 / 19
10-100% in 10% increments / 100%
Off Sensitivity
Max / Min
Start Lamps
1 - 6
Entry Scene
100-10%
Lamp max.
Dimming Regulate 50 - 100%
Fade to Off YES / NO
When Vacant 9 Exit Scenes (3 options x 3 durations)
OFF
YES / NO
Bright-Out
Disabled / Passive / Active
Pcell Rly
Set-Point Low 0 - 1023 / 766
Set-Point High 0 - 1023 / 1022
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Photocell Control
Options
Each of these
Regulating Photocell
settings can be
re-programmed,
Regulating photocell control tries to maintain a constant level
if desired, by use
of total illumination in the space controlled by dimming and
of the infrared
programming tool
brightening the controlled luminaires to compensate for changes
D HP2000.
in illumination from other sources.
With the photocell configured as DISABLED the Regulating Control
module is influenced only by the BRIGHT-OUT setting. BRIGHT-
OUT = YES allows it to hold-off the lights at the start of occupancy
if natural light already exceeds SET-POINT LOW and to extinguish
the lights during occupancy if total light, after the controlled lumi-
naires have been dimmed to minimum, exceeds SET-POINT HIGH
continuously for a period equal to the OFF DELAY . The lighting is
restored immediately if the illumination level subsequently drops
below SET-POINT LOW.
If the photocell is configured for ACTIVE or PASSIVE control of
the relay switched load then the Regulating Control module adopts
the decision made by the Switching Control module in the case of
turn-on inhibit on entry, but still obeys the BRIGHT-OUT YES/NO
setting with regard to turn-off during occupancy.
Switching Photocell (PHOTOCELL: ACTIVE or PASSIVE)
Both ACTIVE or PASSIVE modes hold off the controlled lighting on
entry when natural light is sufficient, i.e. SET-POINT LOW is excee-
ded, but only ACTIVE mode will extinguish the lighting if natural
light increases sufficiently during occupancy, i.e. SET-POINT HIGH
is exceeded continuously for a period equal to OFF DELAY. The
lighting is restored immediately if the illumination level subse-
quently drops below SET-POINT LOW.
Photocell DISABLED
If the photocell is configured as DISABLED for relay Switching
Control it will have no effect on the control of that load, which will
be ON continuously during periods of occupancy unless com-
manded OFF via manual switch or infrared control. The photocell
readings are still available for use by the Regulating Control
module while in this mode.
Programming the Photocell Set-points
The parameters SET-POINT LOW and SET-POINT HIGH pro-
gramme the detector's photocell response The SET-POINTS can
be manually programmed as numbers between 1 (darkest) and
1023 (brightest). This number is not scaled to correlate with 'lux'
measurements made using a light meter, but nevertheless is a
true representation of the light level perceived by the detector. To
assist with finding the appropriate SET-POINT settings, the light
level currently perceived by the photocell can be viewed on the D
HP2000 screen briefly, following a download
Tip:
Turn the lights off (D HP2000 UTILITIES/USER-REMOTE) to
measure the perceived light level with no contribution from the
controlled lighting.
Alternatively the SET-POINTs can be configured semi-automatically.
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