User's Manual

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LT‐D‐0211rev16
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Page|77
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9. Powersupplyreuiermants
Forsupplyingpowertothedifferentsystemsonemyuse2differentoptions:
‐ LocalLimitedpowersupplysource
‐ Mainpowersupplyunitforseveralunits
9.1 Limitedpowersource:
Whenusinglocalpowersupply,useLPScertifiedtypeequivalentto:
a. EDACp/n
EA10721B-2404
b. MEANWELLp/nGS60A24
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9.2 Mainsupplynetwork:
Whenusingmaimspowersupp ly,forsupplyingpowertoseveralunits,youmustfollowthe
followinginstallationrequirements:
a. Usemainpowersupply24Vwithmaximumoutputof40A
b. Theunitmustbecertifiedaccordin gtolocalauthority'srole s.
c. Makesuretheunithasinternaloutputcircuitbreakerwith
shortcircuitandovercurrent
protection.IfnotconnectexternalcertifieddoublepoleDCcircuitbreaker(astheabove)at
ratingsmaximumallowedoutputcurrentofthepowersupply(equalorlowerthanthe
powersupplycurrentoutputratings).
d. Whenconnectingacablebetweenpowersupplytoasystem,
useacablethatcanstandthe
maximumallowedoutputcurrentfromthepowersupply(accordingtolocalauthority's 
rules)forexample:
‐ For40Acurrentuse2*10mm
2
cuppercable
‐ For30Acurrentuse2*10mm
2
cuppercable
‐ For25Acurrentuse2*6mm
2
cuppercable
‐ For20Acurrentuse2*4mm
2
cuppercable
e. ToeachendunitconnectacertifieddoublepoleDCcircuitbreakerwithshortcircuitand
overcurrentprotectionwithratingsaccordingtothefollowinglist:
‐ Basestation‐‐‐‐6A.use2*1mm
2
cuppercable
‐ GateLocator/4Channelexciter‐‐‐‐6A.use2*1mm
2
cuppercable
‐ OneChannelExciter‐‐‐‐2A.use2*0.5mm
2
cuppercable
‐ RemoteDoorIndicator‐‐‐‐2A.use2*0.5mm
2
cuppercable
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