LSC Lighting APS - Manual (Page 5)

APS Product Description
Operator Manual V1.02
Page 1
1 Product Description
1.1 ABOUT THIS MANUAL
This manual describes the installation, configuration and operation of the APS (Advanced
Power System) intelligent power distribution unit manufactured by LSC Lighting Systems.
There are four different colour themes that you can select on the APS touch screen. The
screen images in this manual use the default “Gothic” colour theme.
1.2 INTRODUCTION
The APS (Advanced Power System) is a power distribution unit with a 3 phase mains input
(single phase input available) and either 6, 12 or (24 future release) single phase outputs
depending upon the model.
Power Distribution is the most critical components of any system and lighting is no
exception particularly these days when almost every fixture now needs its own mains power
source. However with each fixture needing power, new problems are introduced particularly
during the power up sequence.
Firstly, in-rush currents of all the power supplies and lamps starting up at the same time
often causes main breakers to trip and secondly the transient currents drawn by the power
supplies can cause earth protection breakers to trip. To avoid these effects you require
complicated power up sequences usually requiring a human sitting there switching circuits
on one at a time.
The LSC APS distribution units are a solution to this and other problems by controlling the
power-on sequence of each of the individual output circuits. In its simplest form, a single
command starts the sequence and then each of the 12 outputs is turned on, one output at a
time, with a programmable time before the next circuit turns on. In this way the peak
current drawn is always low and upstream breakers will not trip.
APS units can be connected together where more than 12 circuits are required and the units
automatically cascade - that is, the second unit won't commence its start-up sequence until
the first has finished.
But this is just the beginning. The APS is capable of the following:
 Automatic control via DMX512. The presence of DMX turns outputs on and loss of
DMX turns outputs off after a pre-set time delay. For example, 19 minutes.
 Remote On/Off switching of output circuits via GPI contact closure (if DMX is not used).
 “Stand Alone” mode for automatic On/Off of output circuits whenever input power is
present/not present.
 Manual override (On/Off of output circuits) via front panel touch screen (with user lock
out).
 Control via RDM.
 RCBO (Residual Current Breaker with Overcurrent) output channel circuit breakers
protect against current overload AND earth leakage faults (Residual Current Device)
or (Ground Fault Indicator).
 RCBO output channel circuit breakers also provide Neutral Disconnect function.
 Staggered switch on of outputs (with adjustable delay) to prevent start-up surge
overloading of the power supply feed.
 Multiple APS units can be configured to start up in sequence.
 Cascading start-up for individual units via XLR5 cabling and/or based on unit
number.
 Input voltage monitoring per phase.
 Input current monitoring per phase.
 Input mains frequency monitoring.
 Programmable over-voltage and under-voltage trips to protect loads.
 Voltage and current reporting via RDM.
 Three phase operation.