Owner's manual

Cymbal Installation Guide Installation
MAN-CYMIG (Ver. 1.3)
www.elmomc.com
32
Power Dissipation 200V series
0
50
100
150
200
250
0 6.7 13.3 20.0 26.7 33.3 40.0 46.7 53.3 60.0
Motor's Current (Ampere)
Power Dissipation (W)
40VDC
80VDC
120VDC
160VDC
196VDC
Heatsink
Required
Heatsink
not
Required
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3.7.3. HowtoUsetheCharts
Thechartsabovearebasedupontheoreticalworst‐caseconditions.Actualtestresultsshow
30%to50%betterpowerdissipation.
Todetermineifyourapplication needs aheatsink:
1. Allowmaximumheatsinktemperaturetobe80°Corless(shuntdownis 6°Cto8°C
higher).
2. DeterminetheambientoperatingtemperatureoftheCymbalas≤40°C.
3. Calculatetheallowabletemperatureincreaseasfollows:
Foranambienttemperatureof40°C,ΔT=80°C–40°C=40°C
4. Usethecharttofindtheactualdissipationpowerofthedrive.Followthevoltagecurveto
thedesiredoutputcurrentandthenfindthedissipatedpower.
5. Ifthedissipatedpowerisbelow12WtheCymbalnee dsnoadditionalcooling.
Note:  Thechartaboveshowsthatnoheatsinkisneededwhentheheatsinktemperatureis 
80°C,ambienttemperatureis40°Candheatdissipatedis4W.
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