MPS12 User Guide
MPS12
Console Power Supply
USER GUIDE
Publication AP5739
Limited One Year Warranty
This product has been manufactured in the UK by ALLEN & HEATH and is
warranted to be free from defects in materials or workmanship for a period of one
year from the date of purchase by the original owner.
To ensure a high level of performance and reliability for which this equipment has
been designed and manufactured, read this User Guide before operating.
In the event of a failure, notify and return the defective unit to ALLEN & HEATH or
its authorised agent as soon as possible for repair under warranty subject to the
following conditions:
Conditions Of Warranty
1. The equipment has been installed and operated in accordance with the
instructions in this User Guide
2. The equipment has not been subject to misuse either intended or accidental,
neglect, or alteration other than as described in the User Guide or Service
Manual, or approved by ALLEN & HEATH.
3. Any necessary adjustment, alteration or repair has been carried out by
ALLEN & HEATH or its authorised agent.
4. The defective unit is to be returned carriage prepaid to ALLEN & HEATH or its
authorised agent with proof of purchase.
5. Units returned should be packed to avoid transit damage.
In certain territories the terms may vary. Check with your ALLEN & HEATH agent
for any additional warranty, which may apply.
This product complies with the European Electromagnetic
Compatibility directives 89/336/EEC & 92/31/EEC and the
European Low Voltage Directives 73/23/EEC & 93/68/EEC.
Any changes or modifications to the power supply unit not approved by Allen
& Heath could void the compliance of the product and therefore the user’s
authority to operate it.
MPS12 User Guide AP5739 Issue 1.
Copyright © 2004 Allen & Heath. All rights reserved
Manufactured in the United Kingdom by Allen & Heath Limited
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
http://www.allen-heath.com
2
MPS12 User Guide
Important Safety Instructions
WARNINGS
- Read the following before proceeding:
CAUTION
ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR
Read instructions:
Retain these safety and operating instructions for future reference. Adhere to
all warnings printed here and on the power supply unit. Follow the operating
instructions printed in this User Guide.
Do not remove covers:
Operate the power supply unit with its covers correctly fitted. Refer any
service work on the power supply unit to competent technical personnel only.
Power sources:
Connect the power supply unit to a mains power supply only of the type
described in this User Guide and marked on the rear panel. Use only the
power cord with sealed mains plug appropriate for your local mains supply
as provided with the power supply unit. If the provided plug does not fit into
your outlet consult your service agent for assistance.
Power cord routing:
Route the power cord so that it is not likely to be walked on, stretched or
pinched by items placed upon or against it.
Grounding:
Do not defeat the grounding and polarisation means of the power cord plug.
Do not remove or tamper with the ground connection in the power cord.
WARNING: This equipment must be earthed.
Water and moisture:
To reduce the risk of fire or electric shock do not expose the power supply
unit to rain or moisture or use it in damp or wet conditions. Do not place
containers of liquid on it which might spill into any openings.
Ventilation:
Do not obstruct the ventilation slots or position the power supply unit where
the air flow required for ventilation is impeded. If the power supply unit is to
be operated in a flightcase, ensure that it is constructed to allow adequate
ventilation.
Heat and vibration:
Do not locate the power supply unit in a place subject to excessive heat or
direct sunlight as this could be a fire hazard. Locate the power supply unit
away from any equipment which produces heat or causes excessive
vibration.
Servicing:
Switch off the equipment and unplug the power cord immediately if it is
exposed to moisture, spilled liquid, objects fallen into the openings, the
power cord or plug become damaged, during lightening storms, or if smoke,
odour or noise is noticed. Refer servicing to qualified technical personnel
only.
Installation:
Install the power supply unit in accordance with the instructions printed in this
User Guide. Do not connect the output of power supply unit to any other
equipment other than that specified by Allen & Heath.
MPS12 User Guide
3
Important Mains plug wiring instructions.
The power supply unit is supplied with a moulded mains plug fitted to the AC
mains power lead. Follow the instructions below if the mains plug has to be
replaced.
The wires in the mains lead are coloured in accordance with the following
code:
WIRE COLOUR
TERMINAL
European
USA/Canada
L
LIVE
BROWN
BLACK
N
NEUTRAL
BLUE
WHITE
E
EARTH GND
GREEN & YELLOW
GREEN
The wire which is coloured Green and Yellow must be connected to the
terminal in the plug which is marked with the letter E or with the Earth symbol.
This appliance must be earthed.
The wire which is coloured Blue must be connected to the terminal in the
plug which is marked with the letter N.
The wire which is coloured Brown must be connected to the terminal in the
plug which is marked with the letter L.
Ensure that these colour codes are followed carefully in the event of the plug
being changed.
Precautions
4
Damage:
To prevent damage to the power supply unit cosmetics, avoid placing heavy
objects on the unit, scratching the surface with sharp objects, or subjecting
the power supply unit to rough handling and vibration.
Environment:
Protect from excessive dirt, dust, heat and vibration when operating and
storing. Avoid tobacco ash, smoke, drinks spillage, and exposure to rain and
moisture. If the power supply unit becomes wet, switch off and remove
power immediately. Allow to dry out thoroughly before using again.
Cleaning:
Avoid the use of chemicals, abrasives or solvents. The power supply unit is
best cleaned with a soft brush and dry lint-free cloth.
Transporting:
The power supply unit should be transported in the original packing or
secured in a purpose built flightcase to protect it from damage during transit.
DC power cable:
Plan the location of the mixing console and power supply unit so that the DC
power cable is not fully extended. Full extension of the cable can stress the
mixing console and power supply unit connectors and may result in
undesired performance. Ensure that the power cable is located such that it
cannot be stood on or tripped over.
MPS12 User Guide
Introduction
This user guide presents a quick reference to the MPS12. We recommend that you read this fully
before starting. Included is information on installing, connecting and operating the power supply
unit along with panel drawings and technical specification. Whilst we believe the information in
this guide to be reliable we do not assume responsibility for inaccuracies. We also reserve the
right to make changes in the interest of further product development.
We are able to offer further product support through our worldwide network of approved dealers
and service agents. You can also access our Web site (www.allen-heath.com) for information on
our company and its pedigree, our full product range and our design philosophy. To help us
provide the most efficient service please keep a record of your power supply unit serial number,
and date and place of purchase to be quoted in any communication regarding this product. The
serial number is located on the rear panel.
Check the Packing Contents
Retain the product packing should you need to ship the product in future.
components:
You should find the following
1x MPS12 POWER SUPPLY UNIT with captive
DC power lead.
1x 19” FRONT PANEL. Fixes to the MPS12 for
19” rack mounting. This is supplied ready-fitted,
but can be easily removed if the unit is to be
used free-standing.
4x M4x8 POZI SCREWS, with 4x SHAKEPROOF
WASHERS. Fix the 19” front panel to the MPS12
for 19” rack mounting.
1x IEC MAINS LEAD with moulded plug. Check
that the plug is suitable for connection to your
local mains supply.
DOCUMENTATION including Safety Sheet
AP3345, this user guide AP5739 and the
Registration Card AP3594.
The MPS12
The slimline MPS12 power supply unit uses switch mode technology to generate the DC voltages required by
the console. It will operate from a wide range of AC mains input voltages with no change of setting required.
Full protection and thermally controlled fan cooling ensures the power unit will operate consistently.
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING.
ATTENTION: REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
ALLEN&HEATH MPS12
OFF
0
ON
I
AC MAINS IN ~
CAUTION
DC POWER OUT
CONSOLE POWER SUPPLY
100 - 240V~ 47-63Hz 90W MAX
FUSE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
T1.6A L 250V 20mm
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR.
ON
Made in the UK by ALLEN & HEATH Limited
MPS12 User Guide
Serial No.
WARNING: THIS APPARATUS MUST BE EARTHED.
5
Installation
Free standing
The MPS12 can be operated as a free standing unit for shelf or floor operation. Ensure adequate air flow around
the unit. It must not be covered in any way. Always stand the unit on a firm flat surface well away from any soft
furnishings or carpet.
Rack mounting
The MPS12 can be mounted in a standard 19 inch rack using the optional front panel (supplied), and will occupy
2U (3.5 inches) of rack space.
An important consideration when rack-mounting the unit is the need for natural convection of airflow around the
unit. Good ventilation below the unit, in the floor or back of the rack, will ensure a continuous path for airflow.
Rack equipment known to produce a significant amount of heat should not be mounted directly below the power
supply unit. Equipment which also relies on good airflow within the rack (i.e. most power amplifiers and other
power supply units) should be given due consideration and some space should be provided between such units
and the MPS12. Forced convection, by means of a fan-tray, may be desirable in some situations.
Location
As with any power supply unit, it is preferable to provide a degree of physical isolation of the unit from other
equipment, particularly that which carries low level audio signals, to avoid any possible interference pick-up. For
this reason the MPS12 power supply unit is provided with a long (2.9m) DC output cable to enable it to be
positioned away from the mixing console. For the same reason, when rack-mounting it is preferable to avoid
locating the unit next to signal processing equipment.
Grounding
Consideration must be given to the Grounding arrangement of the system, at the centre of which is the console
and the MPS12. The console chassis is connected to the mains earth via the power supply unit. The MPS12
has audio 0V and mains earth connected internally. For safety it is important that all equipment grounds are
connected to mains ground so that exposed metal parts are prevented from carrying high voltage which can
injure or even kill the operator. Do not disconnect the ground connection in the mains lead. It is recommended
that the system engineer check the continuity of the safety ground from all points in the system including
microphone bodies, cable shields, equipment cases, rack metalwork and so on. If audible hum or buzz is
present in the system due to a “ground loop”, consult the console user guide for possible solutions.
Fitting in a rack
The MPS12 is supplied ready for rack mounting. For free standing
use, remove the 19” front panel, which is secured by four M4x8 Pozi
screws and shakeproof washers.
Do not obstruct the ventilation slots. Ensure adequate air
flow around the MPS12.
Do not install the unit directly above or below other
equipment.
Do not remove the cover of the MPS12. There are no user
serviceable parts inside.
6
MPS12 User Guide
Operating the MPS12
Read the SAFETY INSTRUCTIONS printed in the front of this user guide and on the rear panel. The MPS12 is a
high performance switch mode power supply with universal mains input. It will operate from an AC mains supply
voltage from 100V to 240V.
The power supply unit is provided with an IEC type mains connector and moulded mains plug.
Check that this is correct for connection to your wall socket outlet.
Switch the unit on by pressing the rear panel ON switch. The green ON led should light.
To avoid audible thumps and bangs through the speakers, always turn the console on before
switching on the amplifier system, and turn the amplifiers off before switching off the console power
supply unit.
Always switch the power supply unit off before connecting or disconnecting the console power cables, removing
or installing console modules and any servicing work. In the event of an electrical storm, or large mains voltage
fluctuations, immediately switch off the power supply unit and disconnect from the mains supply.
Avoid fully extending the DC cable when plugging in as this may stress the cable and connectors
resulting in failure. Ensure that walkways, aisles and gangways are not obstructed by cables. To ensure
correct performance we recommend that you do not extend or modify the DC power cable in any way.
Connecting the MPS12
The MPS12 may be used to power Allen & Heath consoles fitted with a compatible EXTERNAL DC IN socket.
Connect the MPS12 DC POWER OUT cable to the EXTERNAL DC IN socket of the mixing console as shown
below.
The MPS12 should only be connected to consoles specified to work with the MPS12 by Allen &
Heath. If in any doubt over its suitability for use with a particular console, please contact Allen & Heath
technical support.
EXTERNAL DC IN
ONLY USE RECOMMENDED ALLEN&HEATH POWER SUPPLY
REFER TO USER GUIDE FOR DETAILS
DC POWER OUT
Using the MPS12 as a Backup Power Supply
The MPS12 is suitable for use as a redundant backup supply, in addition to a console’s primary power source.
Some smaller Allen & Heath consoles feature an MPS12 compatible EXTERNAL DC IN connector in addition to
the built in mains power supply. These consoles have combiner circuitry to enable both supplies to run at the
same time. In the event of a problem with one of the supplies, the other will take over seamlessly, without
affecting the console’s performance.
The MPS12 should only be connected as a backup supply to consoles specified to work with the
MPS12 by Allen & Heath. If in any doubt over its suitability for use with a particular console, please
contact Allen & Heath technical support.
MPS12 User Guide
7
Cleaning the Unit
The MPS12 does not use any internal filters. Air is drawn through the fan grille on the side of the chassis, blown
through a heatsink tunnel and out through ventilation slots in the other side of the chassis. It is not necessary to
open the unit for cleaning. Simply keep the fan and ventilation slots free of dust and dirt using a vacuum cleaner
and dry, lint free cloth. Do not use liquid cleaners or compressed air to clean the unit.
Always switch the unit off before inspecting or cleaning it.
Replacing the mains fuse
The AC mains fuse is located on the rear of the MPS12 unit next to the AC mains connector. In the event of a
mains surge or under-rated fuse value, the fuse will rupture. Switch off the power supply and remove the mains
lead plug from the “AC MAINS IN~” socket on the rear of the unit. Check the fuse and replace if necessary. In
the event of repeated failure of the mains fuse, consult your Allen & Heath service agent.
In the unlikely event of an internal DC rail fuse failure, consult your Allen & Heath service agent or Allen & Heath
technical support.
TO AVOID THE RISK OF FIRE REPLACE FUSE WITH THE CORRECT TYPE ONLY, AS INDICATED
ON THE UNIT.
AC~ mains input voltage
Fuse type
100V – 240V ± 10%
T 1.6A L 250V 20mm
Technical specification
Internal universal input switch mode power unit.
MAINS IN socket
IEC 3 pin
Power lead
Country dependent with moulded mains plug supplied
AC mains
100 to 240V AC @ 50/60Hz auto sensing
Consumption
90W max
Mains fuse rating
100-240V AC T 1.6A L 250V 20mm (A&H part number: AL0466)
Overall Dimensions:
19” Front Panel:
Chassis
Height including feet:
Depth:
Weight:
483mm x 88mm
218mm x 55mm
59mm
147mm
1.6kg
19 inch 2U
8.6 inches
2.3 inches
5.8 inches
3.5 lbs
Mains Leads:
Territory
USA
Europe
UK
8
Voltage
100-120V
220-230V
240V
A&H Part no:
AH0323
AH0205
AH0206
MPS12 User Guide
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement