LSC PowerGuard User manual

Designed and
Manufactured
in Australia
OPERATOR MANUAL
Version 1.3
May 2007
LSC Lighting Systems
(Aust) Pty Ltd
ABN 21 090 801 675
7 University Place, Clayton
Victoria, 3168 Australia
Tel: [phone]
Fax: [phone]
Email: [email protected]
Web site: www.lsclighting.com.au
PowerGuard
POWER MONITORING SYSTEM

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Power Guard Operator Manual Version 1.3 May 2007
Table Of Contents
Page #
1.0 Product Information 2
2.0 Technical Specifications 3
3.0 The System Components
3.1 Power Distribution Chassis 4
3.2 Power Guard Display Chassis 4
3.3 Fan Unit 5
4.0 Power Guard Operation 5-8
5.0 Power Connections 9
6.0 Appendix 1 9
Warranty and disclaimer

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Power Guard Operator Manual Version 1.3 May 2007
1.0 Product Information
The PowerGuard power monitoring system is a microprocessor based 3 phase mains
power supervisor. The PowerGuard will analyse the voltage and current parameters of
each phase of the incoming mains power, as well as measure the line frequency. An
additional function for the PowerGuard is to monitor the temperature of the dimmer
racks, when fitted into the TDS Dimming System.
A comprehensive menu system gives the user maximum system information within the
shortest time. The main menu displays the current system status, showing all line
voltages and currents as well as the rack temperature and line frequency. By “digging”
a bit further, statistics for maximum and minimum Voltages, Currents and Temperatures
are displayed along with the exact times that these peaks or lows occurred. A further
menu allows the setting of the real time internal clock. Statistical information will
accumulate over time or can be reset or cleared if desired. An integral LED backlight in
the display, makes reading the display easier. The backlight switches itself off after 5
minutes if no buttons have been pressed. More information on the menu system can be
found in section 4.1 “PowerGuard Operation”.
The voltages and currents measured are read as true RMS values. True RMS is the
component of an AC waveform that actually contains energy to do work. ie the mains
from a wall socket in Australia is 240VAC RMS. The peak voltage of this waveform is
339Volts. However an analysis of the waveform will yield that only an average of the
components of the waveform are actually used to do work, such as heating a light bulb
filament. In pure AC applications where full sine waves are used the RMS and Peak
values can be readily calculated. But in phase control AC dimming systems, the mains
waveform is severely chopped up so a simple calculation is no longer applicable. LSC
use specific circuitry and software to read the true RMS values from its power sensors.

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Power Guard Operator Manual Version 1.3 May 2007
2.0 Technical Specifications
•Distribution Chassis:
Input Supply 240 / 415VAC 3 Phase
Input Connectors/ 5 Powerlocks Source and Drain (E, N, L1, L2 & L3)
Current Rating: /400 Amps.
Power Guard Voltage
Monitor Rating: 240VAC per phase typical. (Maximum of 260VAC)
Power Guard Current
Monitor Rating: 240Amps per phase typical. (Maximum of 250Amps)
Line Frequency: 50 or 60Hz
Power consumption: Less than 30 Watts.
Dimensions: 480mm x 700mm x 264mm (W x D x H) 6 R.U.
Weight : 40 Kg.
•Power Guard Chassis:
Power Consumption: 2 Watts max.
Input Supply: Derived from Distribution Chassis
Dimensions: 480mm x 60mm x 130mm (W x D x H) 3 R.U.
Weight : 2 Kg.

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Power Guard Operator Manual Version 1.3 May 2007
Dimmer A Dimmer B Dimmer C Dimmer D
AUXILIARY THREE
PHASE AUXILIARY SINGLE PHASE
A B C
Dimmer A Dimmer B Dimmer C Dimmer D
AUXILIARY THREE
PHASE AUXILIARY SINGLE PHASE
A B C
3.0 The System Components
3.1 The Distribution Chassis:
The Distribution Chassis is the large switch cabinet at
the bottom of the TDS Dimming System or the Delta
Power Distribution Unit. It is the main power
connection point. It contains the circuit breakers and
RCDs which feed the output sockets which the
dimmers or other power devices plug into. It also
contains the power input stage of the PowerGuard
electronics. The system voltages and currents are
sampled here and then sent by low voltage signal
cable up to the PowerGuard display chassis.
3.2 The PowerGuard Display Monitor:
The PowerGuard Monitor is the cabinet located on the top of the TDS and Delta products. The
PowerGuard analog to digital electronics is located here and reads the signals from the
Distribution Chassis. Conversions of these signals are made, calculations are done and the
actual input power parameters are displayed on a 20 character x 4 line Liquid Crystal Display
The display is backlit to allow viewing in dim light conditions. Several menus are available to the
user, accessed via 3 push buttons. These menus will be dealt with in section 4.0 “PowerGuard
Operation” on page 5. Each dimmer module is fitted with a temperature sensor mounted on its
internal heatsink and the PowerGuard connects to these sensors via a DB9 connector mounted
on the rear of each dimmer. The system reads these sensors, and displays the current
maximum dimmer temperature. This option is not available on the Delta PDU products.
In addition to these features, there is a connector for a standard desk light which provides
illumination in dim light conditions.
TDS Dimmin
g
S
y
stem Delta DT220S PDU
Dimmers
Distribution
Chassis
Delta 5 way
Data Splitter
PowerGuard
Monitor

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Power Guard Operator Manual Version 1.3 May 2007
4.0 Power Guard Operation
The PowerGuard Module user interface comprises the 20 character x 4 line LCD with integral
backlight. Below it are three buttons each with an integral LED. The buttons and switches work
together. The bottom line of the display will give menu choices. The LED in the button below
the menu choice will glow indicating that the button will do something if pressed. Unlit buttons
will have no effect.
The menu structure is detailed below and the actual screens follow this sequence.
Screen 11A
RESET
Last Yes
Screen 11C
RESET
Last Yes
Screen 8
PREFS
Last Settime
Screen 10
TEMP STATS
Last Reset
Screen 9
SETTIME
Last Sel> +++
Screen 1
SUMMARY
Next
Screen 2
CURRENT
More Next
Screen 3
VOLTAGE
More Next
Screen 4
TEMPERATURE
Prefs More Next
Screen 5A
P1 AMPS STAT
Last Reset Next
Screen 5B
P2 AMPS STAT
Last Reset Next
Screen 5C
P3 AMPS STAT
Last Reset Next
Screen 5D
N AMPS STAT
Last Reset Next
Screen 6A
P1 VOLT STAT
Last More Next
Screen 6B
P2 VOLT STAT
Last More Next
Screen 11B
RESET
Last Yes
Screen 7B
P2 TIME STAT
Last Reset
Screen 6C
P3 VOLT STAT
Last More Next
Screen 7A
P1 TIME STAT
Last Reset
Screen 7C
P3 TIME STAT
Last Reset

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Power Guard Operator Manual Version 1.3 May 2007
Upon power up the display will show for approximately 3 seconds.:
The TS Dimming System
PowerGuard v1.20
L.S.C. Electronics
Melbourne Australia
After Power up, the display will show the SUMMARY screen:
Screen 1 - SUMMARY
This screen displays a summary of all the information available.
Pha1 Pha2 Pha3 Neut – Incoming power lines. Phase 1, 2, 3 and Neutral.
236V 236V 240V - Current Line voltages. Measured in Volts AC RMS.
84A 85A 88A 86A - Current Line currents. Measured in Amps RMS.
T:19C F:49.9Hz NEXT - Current Rack Temperature and Line Frequency
and NEXT menu option.
The LED in the button below “NEXT” will illuminate to indicate that this is the only valid
button push available.
This display will update in real time showing exactly what is occuring. Pressing the
“NEXT” key will take you into the CURRENT MONITOR menu (Screen 2).
“LAST” in any menu will take you back to the previous menu.
Screen 2 - CURRENT MONITOR
This screen displays the same information as the summary screen but allows you to go
into the statistical menu.
Current Monitor AMPS
Pha1 Pha2 Pha3 Neut
84A 85A 88A 86A
MORE NEXT
The LED in the switches below “MORE” and “NEXT” will illuminate.
Pressing “NEXT” will take you into the VOLTAGE MONITOR Menu (Screen 3).
Pressing “MORE” will take you into the P1 AMPS STAT Menu (Screen 11A).
Screen 3 - VOLTAGE MONITOR
This screen displays the same information as the summary screen but allows you to go
into the statistical menu.
Voltage Monitoring
Pha1-N Pha2-N Pha3-N
236V 236V 240V
MORE NEXT
The LEDs in the switches below “MORE” and “NEXT” will illuminate.
Pressing “NEXT” will take you into the TEMPERATURE menu (Screen 4).
Pressing “MORE” will take you into the P1 VOLT STAT Menu (Screen 6A).

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Power Guard Operator Manual Version 1.3 May 2007
Screen 4 - TEMPERATURE
This screen shows the current rack temperature and the fan status. It also allows you to
go into the statistical menu or into preferences setup.
Rack Temperature 20C
Frequency 50.0Hz
PREFS MORE NEXT
The LEDs in the switches below “PREFS”, “MORE” and “NEXT” will illuminate.
Pressing “NEXT” will take you back to SUMMARY menu (Screen 1).
Pressing “MORE” will take you into the TEMP STATS Menu (Screen 10).
Pressing “PREFS” will take you into the PREFS Menu (Screen 8).
Screen 5A - P1 AMPS STAT
This screen displays maximum and mininum statistical values for phase 1 current. Also
it allows you to go into the reset log menu.
Phase1 Amps AC rms
Now= 2A 11:06 29/11
Max= 3A 15:54 28/11
LAST RESET NEXT
Pressing “NEXT” will take you into Screens 5B, 5C and 5D. These are similar except
they indicate Phase 2, 3 and Neutral Amps.
Pressing “RESET” will take you into the RESET Menu (Screen 11A).
Screen 6A - P1 VOLT STAT
This screen shows maximum and mininum statistical values for phase 1 voltage and
when they occurred.
Phase1-Neutral Volts
Now= 239VAC @ 11:30
Min= 0v Max= 243V
LAST MORE NEXT
Pressing “NEXT” will take you into Screens 6B and 6C. These are similar except that
they indicate phase 2 and 3 Volts respectively. All voltages are referenced to Neutral.
Pressing “MORE” will take you into the P1 TIME STAT Menu (Screen 7A).
Screen 7A - P1 TIME STAT
This screen displays maximum and mininum statistical values for phase 1 voltage and
when they occurred. Allows you to go into the reset log menu.
Phase1-Neutral Volts
Max= 243V 11:30 28/11
Min= 0V 9:00 27/11
LAST RESET
The Maximum and Mininum values are followed by a time date stamp. Screens 7B and
7C are similar except that they indicate phase 2 and 3 voltages statistics respectively.

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Power Guard Operator Manual Version 1.3 May 2007
Pressing “RESET” will take you into the RESET Menu (Screen 11B).

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Power Guard Operator Manual Version 1.3 May 2007
Screen 8 - PREFS
This screen displays the time, date and thresholds for the fans and allows you to go into
the configuration menus.
Set Preferences
Time: 13:27:06 29/11
LAST SETTIME
Pressing “SETTIME” will take you into the SETTIME Menu (Screen 9).
Screen 9 - SETTIME
This sceen allows the correct time and date to be set. Press “LAST” to save.
Time 13:28 29/11/96
Sel> = Move Cursor
+++ = Increment
LAST SEL> +++
Screen 10 - TEMP STATS
This screen displays the temperature statistics for the dimmer. Also allows you to go
into the RESET menu.
Rack Temp. Now = 20C
Max=20C @15:28 28/11
Min=16C @09:02 29/11
LAST RESET
Pressing “RESET” will take you into the RESET Menu (Screen 11C).
Screen 11A - RESET
This screen allows you to reset either the voltage, current or temperature logs.
Reset Current Log.
Clears the recorded
max and min values.
LAST YES
Screens 11B and 11C are similar except that they indicate Reset Voltage Log and
Reset Temp. Log respectively.
Pressing “YES” will clear the current minimum and maximum.

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Power Guard Operator Manual Version 1.3 May 2007
5.0 Power Connections.
The Power Connections to the rack system are 400 Amp Powerlocks. Refer to the
Technical Specification Section regarding these connectors. To connect power to the
system first ensure that the power feeds are turned off. Next connect the power cables
in the following order. Earth (Green), Neutral, Phase 1, Phase 2 then Phase 3. It is
most important that the Earth is the first one connected and the last one removed from
this or any system. Next most important is the Neutral as it serves as a reference for
the active phase voltages.
Failure to follow this procedure may result personnel injury and/or serious damage to
the rack and would not be covered under the terms and conditions of the warranty.
6.0 Appendix 1
Warranty and Disclaimer
LSC Lighting Systems (Aust) Pty. Ltd. warrants each unit it manufacturers to be free
from defects in material and workmanship under normal use and service for a period of
24 months from date of purchase. If the the product is deemed to be defective in
materials or workmanship then these items will be repaired at no charge. The customer
must however cover the freight costs to and from LSC Lighting Systems (Aust) Pty. Ltd.
There are no user serviceable parts inside. Refer service to qualified personnel only.
LSC Lighting Systems (Aust) Pty. Ltd. supplies the enclosed information in good faith.
LSC Lighting Systems (Aust) Pty. Ltd. makes no representations or warranties with
respect to the contents or use of this manual, and specifically disclaims any implied
warranties of merchantablilty or fitness for any particular purpose. Our policy is one of
continual improvement and we reserve the right to change circuitry, specifications or
mode of operation of circuitry without obligation to notify any person or entity of such
revisions or changes.