3: INSTALLATION AND WIRING3-14 « FC4A MICRO SMART USER ’S MANUAL »Output WiringRelay OutputTransistor Sink Output Transistor Source OutputCaution • If output relays or transistors in the MicroSmart CPU or output modules should fail, outputs mayremain on or off. For output signals which may cause heavy accidents, provide a monitor circuitoutside the MicroSmart.• Connect a fuse to the output module, selecting a fuse appropriate for the load.• Use proper wires for output wiring.All-in-one type CPU modules: UL1015 AWG22 or UL1007 AWG18Slim type CPU and I/O modules: UL1015 AWG22• When equipment containing the MicroSmart is intended for use in European countries, insert anIEC 60127-approved fuse to each output of every module for protection against overload orshort-circuit. This is required when equipment containing the MicroSmart is destined for Europe.7 COM101234567Ry.OUT10 2 3 COM0 NC 4 5 6LLFuseLLLACFuseFuseDCDCLoadLLLFuse+–ACFuseFuseDCDC+–+–+–Connect a fuse appropriatefor the load.FuseFuseCOM(–) +V01234567Tr.OUT0 1 2 3 4 5 6 7Connect a fuseappropriate for the load.LFuse LL+ –LLLLLoadLCOM(+) –V01234567Tr.OUT0 1 2 3 4 5 6 7Connect a fuseappropriate for the load.LFuse LL+–LLLLLoadLFuse
