Beijer-electronics BFI-P2 V1.21 Manuel d'utilisateur télécharger pdf (Page 25)

UserGuideRevision1.121

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www.beijerelectronics.com

25

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4.10.7. “STO“ElectricalInstallation



The“STO”wiringshallbeprotectedfrominadvertentshortcircuitsortampering whichcouldleadtofailureofthe“STO”inputsignal,

furtherguidanceisgiveninthediagramsbelow.



Inadditiontothewiringguidelinesforthe“STO”circuitbelow,section4.1.1“RecommendedinstallationforEMCcompliance.shouldalso

be

followed.



Thedriveshouldbewiredasillustratedbelow;the24Vdcsignalsourceappliedtothe“STO”inputcanbeeitherfromthe24Vdconthedriveor

fromanExternal24Vdcpowersupply.



4.10.7.1. Recommended“STO”wiring

UsinganExternal24VdcPowerSupply.  Usingthedriveson‐board24Vdcsupply



‐ Twisted‐Pair

‐ Shieldedcables

1213

+24Vdc

Safetyrelay

ProtectiveCappedTrunking

orequivalenttoprevent

STOCableshortcircuittoan

externalVoltagesource.

External

Power

Supply

 



 

Note:TheMaximumcablelengthfromVoltagesourcetothedriveterminalsshouldnotexceed25mtrs.

4.10.8. ExternalPowersupplySpecification.

VoltageRating(Nominal) 24Vdc

STOLogicHigh 18‐30Vdc(Safetorqueoffinstandby)

CurrentConsumption(Maximum) 100mA

4.10.9. SafetyRelaySpecification.

Thesafetyrelayshouldbechosensothatatminimumitmeetsthesafetystandardsinwhichthedrivemeets.

StandardRequirements SIL2orPLdSC3orbetter(WithForciblyguidedContacts)

NumberofOutputContacts 2independent

SwitchingVoltageRating 30Vdc

SwitchingCurrent 100mA

Wiresshouldbe

protected

againstshort

circuitsas

shownabove

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 55 56

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