LSC Lighting iSeries - Manual (Page 16)

V1.21 September 2007 iPAK/iPRO Dimmer Operator Manual
LSC Lighting Systems (Aust) Pty Ltd 12
The S Law is the factory default setting for all dimmers. In the case of the iPAK, all channels are
permanently set to the S Law and cannot be changed.
Use the Scroll Buttons to select the desired curve. Once chosen, press the Mode Selection
Switch to select the next channel. Repeat all steps above until the set up is complete. To store
this setup, press and hold the Mode Selection Switch and the dimmer will exit the Curve function
and store the curve set up into memory. The “Curve” LED will remain on, indicating that stored
curve set ups are present in the dimmer.
In the event of power down and power then being restored, the dimmer will remember its stored
curve set up. (Note: The Curve Setup will only be committed to memory approximately 5 seconds
after the last curve change. The S Law is the factory default setting for all LSC dimmers.)
4.6 Phase Failure
In the event of a supply phase failure or disconnection, the iPAK and iPRO dimmers will indicate
to the operator which phase has dropped out or moved out of specification. The latter means that
under certain circumstances, the supply voltage and /or frequency may move outside the
acceptable operating specification and will appear as a fault to the dimmer.
Three small red LEDs are located in the top of the Status Display and labelled “A”, “B” and “C” for
phases 1, 2 and 3 respectively. A LED will flash for the respective phase number when it has
failed or been disconnected. If this fault condition occurs, it is highly recommended to shut down
the dimmer and correct the fault as soon as possible.
The dimmer’s control electronics is powered by all three phases, so in the event of any two
phases failing, the electronics will continue to operate.
4.7 Continuous Operation
The iPAK and iPRO dimmers are designed to operate at 100% Duty Cycle, they will supply full
rated load to all outputs continuously. Under these conditions the dimmer’s ventilation is critical
and good clearance around the dimmer is essential to prevent obstruction to the airflow in and
out of the dimmer chassis.
LSC recommends a general clearance of 150mm on either side of the dimmer and 200mm at the
front of the dimmer.