SPROCKET 8K4054 - Caterpillar

WIRING DIAGRAM FOR 2301 PARALLEL CONTROL BOX
ACTUATOR
MAGNETIC PICKUPA minimum fuel switch can be connected between terminals 22 and 23. This gives an optional method for shutdown. When this switch is closed the voltage output to the actuator is zero.The gain and stability potentiometers control the response of the engine to a change in load. The gain potentiometer is used to decrease response time to a minimum. The stability potentiometer is used to get the best speed stability for the gain setting that is used.The speed droop potentiometer controls the amount of speed droop. It can be set between 0 and 13%. Droop is necessary when paralleling with a utility bus or a unit with a hydra/mechanical governor. Potential Transformer and current transformers must be connected for speed droop to function.The de-droop potentiometer gives compensation during isochronous operation for droop caused by component tolerances and outside electrical noise. Make adjustments after equipment installation is complete.The load gain potentiometer is set so that the ratio between the actual kilowatt output and the rated kilowatt output of each unit in the system is the same.The speed failsafe circuit will return the voltage output of the control to zero if the magnetic pickup signal has a failure. This will cause the actuator to move to the FUEL OFF position. Also the engine will not start if the magnetic pickup signal has a failure. On the 8N409 Control Box the jumper between terminals 29 and 30 must be removed to deactivate the speed failsafe circuit for test purposes.On the 8N408 Control Box terminals 12 and 13 are used for either 24V or 32 VDC. Terminals 25 of all the units in parallel, are connected together in series. This gives a high voltage selection of all battery voltages. Selection of the high voltage as the common supply to all units prevents small speed changes caused by different battery supply voltages.For more information, make reference to Special Instruction Form No. SEHS7368.Automatic Start/Stop System - (Non-Package Generator Sets)
AUTOMATIC START/STOP SYSTEM SCHEMATIC (Hydraulic Governor)
1. Starter motor and solenoid. 2. Shutoff solenoid. 3. Fuel pressure switch. 4. Water temperature switch. 5. Oil pressure switch. 6. Overspeed contactor. 7. Battery. 8. Low lubricating oil pressure light (OPL). 9. Overcrank light (OCL). 10. Overspeed light (OSL). 11. High water temperature light (WTL). 12. Automatic control switch (ACS).An automatic start/stop system is used when a standby electric set has to give power to a system if the normal (commercial) power supply has a failure. There are three main sections in the system. They are: the automatic transfer switch, the start/stop control panel (part of switch gear) and the electric set.Automatic Transfer Switch
The automatic transfer switch normally connects the 3-phase normal (commercial) power supply to the load. When the commercial power supply has a failure the switch will transfer the load to the standby electric set. The transfer switch will not transfer the load from commercial to emergency power until the emergency power gets to the rated voltage and frequency. The reason