PISTON AS 5511106 - Caterpillar

4.9.1: Starting Motors
The starting motors are 32 volt motors and must be wired in series. Diagram 7 in "4.12: Installation Diagrams" and the wiring diagrams in "4.13: Wiring Diagrams" show the recommended method of hook-up using two magnetic switches. Diagram 8 in "4.12: Installation Diagrams" shows an alternate method if the customer prefers one magnetic switch rather than two magnetic switches. Both wiring configurations will ensure that a hung starter will inhibit an engaged starting motor from being energized.4.9.2: Start And Shutdown Logic
The wiring diagrams in "4.13: Wiring Diagrams" show the installation wiring. The bulk of the logic is defined by the relay logic in the remote mounted start stop logic box. Some of the logic is defined by customer wiring in the locomotive.It is important that the customer adheres to the configuration shown in the wiring diagrams which require three external relays. If this is not done it is possible that some of the failsafe features outlined in section two of this manual will not function properly.4.9.3: Electronic Governing System
Detailed wiring of the electronic governing system is provided by the following diagrams. There are several configurations depending on which generator the engine is equipped with and whether the locomotive is equipped with dynamic brakes and/or motor cutout. For completeness, and to assist in commissioning and troubleshooting, these diagrams contain details of the engine harness in addition to the details of the customer wiring.4 Axle-Dynamic Brakes 1250 Volt Generator
Diagram 9 in "4.12: Installation Diagrams" shows the wiring between TB391, TB399, Traction Generator Exciter, PT's and CT's (located in the Traction Generator) and the locomotive's operator controls.4 Axle-No Dynamic Brakes 700 Volt Generator
Diagram 10 in "4.12: Installation Diagrams" shows the wiring between TB391, TB399, Traction Generator Exciter, PT's and CT's (located in the Traction Generator) and the locomotive's operator controls.4 Axle-Dynamic Brakes And Motor Cutout
Diagram 11 in "4.12: Installation Diagrams" shows the wiring between TB392, TB399, TB393, TB394, TB251, Transductors, PIR and the locomotive's electrical system.4 Axle-Dynamic Brakes
Diagram 12 in "4.12: Installation Diagrams" shows the wiring between TB392, TB399, TB393, TB394, TB251, Transductors, PIR and the locomotive's electrical system.4 Axle-Motor Cutout
Diagram 13 in "4.12: Installation Diagrams" shows the wiring between TB392, TB399, TB393, TB394, TB251, Transductors, PIR and the locomotive's electrical system.4 Axle
Diagram 14 in "4.12: Installation Diagrams" shows the wiring between TB392, TB399, TB393, TB394, TB251, Transductors, PIR and the locomotive's electrical system.4.9.4: Ether Starting Aid
The wiring for this system is shown on the wiring diagrams in "4.13: Wiring Diagrams".4.10: Transductor Location
The standard software package uses either four or five transductors. Four of these are for monitoring the traction motor currents. If the locomotive is equipped with dynamic brakes, it will require a fifth transductor for measuring the grid cooling fan current. The standard wheelslip group is configured for four axles only. It must be updated with an optional group if the locomotive is equipped with dynamic brakes. Refer to Diagram 4 in "4.12: Installation Diagrams" for details.The traction power is wired in different configurations in different locomotives.