Keba D3-DA 3 Series - 6.5 Electrical isolation concept; 6.6 Connection of supply voltages via busbars

D3DA3xx/x Connectionsandwiring
ProjectengineeringmanualV1.00
55
©KEBA
6.5 Electricalisolationconcept
Thecontrolelectronics,withitslogic(μP),theencoderterminalsandthein
putsandoutputs,areelectricallyisolatedfromthepowersection(power
supply/intermediatecircuit).
Allcontrolterminalsaredesignedassafetyextralowvoltage/protectiveex
tralowvoltage(PELV)circuitsandmustonlybeoperatedwithsuchPELV
voltages,aspertherelevantspecification.Thisprovidesreliableprotection
againstelectricshockonthecontrolside.
The24VsupplyvoltagenecessaryforthePELVcircuitisprovidedbysup
plymoduleD3DP3xx/xviathebusbar24VDC/GND.
Information
TheelectricalisolationconceptcomplieswiththeproductstandardEN
6180051.
Appliestosafedigitalinputs(X26A):
● ThedigitalinputsSDI00/SDI01/GNDareisolatedagainstSDI02/SDI03/
GND
● Allinputsareisolatedagainstthe24Vsupply.
● AllinputsareisolatedagainstPE.
● Max.permittedisolationvoltage:PELV
● Max.permittedinputvoltage:60V...60V
Caution
BothGNDconnectorsofterminalX26Aareelectricalisolatedtoeachother
andsotheyarenotconnectedtotheGNDbusbars(24V)underthecover.
ForeachSTOtheaccordingGNDmustbeconnected!
6.6 Connectionofsupplyvoltagesviabusbars
Thevoltagesupplytotheaxismoduleisseparateforthecontrolandpower
sections.Thecontrolsectionreceivesits24Vsupplyfromswitchedmode
powersupplyinthesupplymoduleviatheupperbusbar(+24VDCand
GND).
ThepowersectionintheaxismodulereceivesitsDClinksupplyfromthe
supplymoduleviathelowerbusbar(DCLink+andDCLink).
1) FirstmakesurethatallD3DA3xx/xaxismoduleswiththeD3DP3xx/x
supplymodulearearrangedinalineandareincontactwitheachother.