Owner's manual

Table Of Contents

Cymbal Installation Guide Installation

MAN-CYMIG (Ver. 1.3)

3.6. DC Power Supply

TheDCpowersupplycanbeatanyvoltageintherangedefinedinthetechnicalspecifications

(Chapter5ofthisguide).Thesupplysourcemustcomplywiththesafetyaspectsofthe

relevantrequirements,inaccordancewiththemostrecentversionofthestandardEN60950or

equivalentLowVoltageDirectiveStandard,allaccordingtotheapplicableover‐voltage

category.IfthepowersourcetothepowersupplyistheACline (throughanisolatedora non‐

isolatedtransformer),safetymarginsmustbeconsidered,inordertoavoidactivatingthe

undervoltage/overvoltageprotectionduetolinevariationsand/orvoltagedropunderload.

Inadditiontotheabove,thetransformermustcomplywiththesafetyaspectsoftherelevant

requirementsinaccordancewiththemostrecentversionofthestandardEN60742(Isolating

andSafetyIsolatingTransformers).Thenominal DCbusvoltageshouldbeinthefollowing

range:

1.2V

dcmin

<Vdc<0.9V

dcmax

Where:

dcmin

istheminimumDCbus

dcmax

isthemaximumDCbus

Thetransformerpowershouldbecalculatedsuchthatitwillbeabletodeliverpowertothe

amplifier(includingpeakpower)withoutsignificantvoltagedrops.

Thepowersupplyshouldbelocatedascloseaspossibletotheamplifier.Whiledrivinghigh‐

inertialoads,thepowersupplymustbeequippedwithashuntregulator;otherwise,the

amplifierwillbedisabledwheneverthecapacitorsarechargedabovethemaximumvoltage,

duringmotorbreakdown. 

3.6.1. PoweringUp

AftertheCymbalisconnectedtoitsdevices,theCymbalisreadytobepoweredup.



Caution:Beforeapplyingpower,ensurethattheDCsupplyiswithinthespecifiedrange

andthattheproperplus‐minusconnectionsareinorder.

3.6.2. InitializingtheSystem

AftertheCymbalhasbeenconnectedandmounted,thesystemmustbesetupandinitialized.

3.7. Heat Dissipation

ForfullpoweroutputcapabilitytheCymbalisdesignedtobemountedonanexternalheatsink.

Itishighlyrecommendedthatthe“Wall”onwhichtheCymbalismountedwillhaveheat

dissipationcapabilities.TheCymbalat“freeairconvection”(withoutanadditionalheatsink)

candissipatearound12Wfor40°Cambienttemperatureandnotexceeding80°Conthe

heatsink.

When“FreeAirConvection”issufficientfortheapplicationitisrecommendedtoleave

approximately10mmofspacebetweentheCymbal'sheatsinkandanyotherassembly.