0440BA61122622REGULATOR11260422VOLTAGE400131318SP2IM21613SCR008685HTO LOP1801312VBATTERYSCRSMIM1SP14411POWERWINDING3322WINDINGPOWERSTATOR40560SCPage 108utility VoltaGe dropout and enGine crankinG• After ten (10) seconds and when the circuit board’s 10-second timer has timed out, if utility voltage is still below65 percent of nominal, circuit board action will energize the circuit board’s crank and run relays simultaneously.• Printed circuit board action delivers 12 volts DC to a starter contactor relay (SCR), via Wire 56. When the SCRenergizes, its contacts close and battery power is delivered to a starter contactor (SC). When the SC energizes,its contacts close and battery power is delivered to the starter motor (SM). The engine cranks.Part 4 DC CONTROLsEctioN 4.2oPEratioNal aNalYsis0G9266revA.indd 108 10/15/2008 11:27:58 AM
