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PEHA Lichtsteuerung – PEHA Elektro GmbH & Co. KG a Honeywell Company · Gartenstraße 49 · 58511 Lüdenscheid · Deutschland · www.peha.de · [email protected]
The Primary Interest is the Regulating Control Output.
With the photocell configured as DISABLED:
Using D HP2000 (UTILITIES / SET LIGHT LEVEL) or D HC5
(+,- Scene 1) set the required light output from the controlled
luminaires and then press and hold OK (D HP2000) or Scene 1 (D
HC5) until the controlled lights „blink“ to indicate that a new SET-
POINT LOW has been stored and a calculated SET-POINT HIGH
has also been inserted. Using the D HP2000 the photocell can now
be re-configured as ACTIVE or PASSIVE if required.
The Primary Interest is the Switching Control Output
With the photocell configured as ACTIVE or PASSIVE:
1. If the lights are not already on, switch them on manually by pres-
sing ‘UTILITIES/USERREMOTE/ Lu/OK’ (D HP2000) or
„+“ (D HC5). Fluorescent lights do not reach full output until up
to 15 minutes after being switched on, so ensure that the lights
are fully warmed up before continuing.
2. Wait until the time of day when the natural light level is at the
point below which you would want the lights to be on, and
above which you would not want the lights to be on.
3. Start the internal self-programming mechanism by pressing
‘UTILITIES/SET LIGHT LEVEL/OK’ (D HP2000) or Scene 1 (D
HC5). The detector takes a photocell reading, adds a small
amount and stores the value in SET-POINT HIGH. Then it turns
the lights off, makes another measurement and stores the value
in SET-POINT LOW. The lights now switch on again to acknow-
ledge a successful programming operation..
The two switching thresholds have now been set, and the difference
between them is equal to slightly more than the contribution made
by the electric lighting. This is the perfect amount of hysteresis to
ensure that the lights will not oscillate.
OneSwitch
OneSwitch Dimming affords local control to the end-user whereby a
simple, momentary, push-to-make wallswitch can be used to raise or
lower the lighting level or toggle the output of the unit ON or OFF. A
short press (less than 1 second) toggles all outputs from both OFF
to both ON or from either ON to both OFF. A long press will ramp the
digital output either up or down with no effect on the volt-free output.
If the output prior to pressing the switch is above 90% the output
will ramp down; if below 90% it will ramp up. If the latest press and
the current press are within 5 seconds of each other it will ramp in
the opposite direction.
Important Additional Notes
1. All terminals on this product are provided for final connections.
It is not intended that the product be used as a junction box for
looping cables.
2. Although nominally 12V, the dimming output is not SELV and
therefore should be treated with the same respect as mains with
regard to wiring practice.
3. Take care when choosing a location for this equipment since this
type of device is capable of detecting large moving metal objects
well beyond the normal range at which it is sensitive to human
targets.
4. Please note that, although configurable as a regulating photo-
cell, [closed-loop dimming according to daylight], due to the
probable corner-of-room location where there will be excessive
influence by daylight reflected from the walls, this product is not
intended to achieve precise light level regulation measured on
the working plane.
5. This equipment switches lights no more frequently than would a
responsible human occupant. However, manufacturers of some
lighting types (e.g. ‘2D’ luminaires) may specify a maximum
number of switching cycles in order to achieve a predicted lamp
life. Please check with the manufacturer of the luminaires to
ensure that they are compatible with automatic controls in this
respect.
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