Banner SC26-2 Instruction Manual

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Banner SC26-2 Instruction Manual Manual pdf 89 page image

0V 24V0V 24V*XS2soSolid State SafetyOutput ModuleXS26-2Base ControllerPowerSupplyPowerSupply#1 #2PowerSupply0V 24V24V 0V*Functional Earth(optional)Preferred 0V routing plan when a single power supply is usedPreferred 0V routing plan when separate power supplies are used+/- 30V peak*Local 0VCommonLocal 0VCommonThe voltage for all safety input devices (including all Input Expansion Modules)should be measured in reference to the 0V terminal of the Base Controller0V24V24V 0V 0V24VXS2soSolid State SafetyOutput Module(limited isolation)XS26-2Base ControllerFigure 68. Wiring Diagram—Recommended Grounding6.6.2 Safety Relay OutputsExpansion Safety Relay modules have isolated redundant relay outputs that can be used to control/switch a wide range ofpower characteristics (see Specifications on page 11). Unlike a solid-state Safety Output, within an output module anindividual safety relay output (Mx:ROx) functions as a group and cannot be split.The Safety Relay Outputs are controlled and monitored by the Base Controller without requiring additional wiring.For circuits requiring the highest levels of safety and reliability, when used in pairs (two N.O. or N.O. and a N.C.), eitherSafety Output must be capable of stopping the motion of the guarded machine controlled by a safety output in anemergency. When used individually (a single N.O. output), fault exclusion must ensure that failures cannot occur thatwould result in the loss of the safety function, for example, a short-circuit to another safety output or a secondary sourceof energy or voltage. For more information, see Single-channel Control in Safety (Protective) Stop Circuits on page 92and Fault Exclusion on page 69.XS/SC26-2 Safety Controller89