GASKET 4N4159 - Caterpillar

Illustration 1 g00720980
Parallel Mode Switch (1) MANUAL (Permissive) Position (2) OFF Position (3) SEMI-AUTO Position (4) AUTO PositionThe GSC+P is in Parallel Mode whenever the Parallel Mode Switch is in the AUTO position, the Semi-AUTO position, or the Permissive position. There are several paralleling functions within Parallel Mode. These functions are determined by the following items: Parallel Mode Switch, Engine Control Switch (ECS), Customer Communication Module (CCM), if the Close Breaker Control Output is connected to the breaker, if the Close Breaker Control Output is not connected to the breaker and whether the bus is live or dead.
Illustration 2 g00688669
Note: The EMCP II+P is not designed for paralleling with a UTILITY in a standard installation. The EMCPII +P WILL support paralleling of multiple generators. The EMCP II+P can be reconfigured to operate in parallel with a utility, but must be modified to operate in droop mode. Additional components must be added in order to perform proper load control when paralleling with a utility. These subjects are beyond the scope of this manual. Consult your Caterpillar Dealer for more information.Note: The GSC+P is not intended for use with DELTA-WIRED GENERATORS. If setpoint P032 is set to 1 (delta generators), the synchroscope will flash as shown in illustration 2. An "AL17" diagnostic code will appear when the "Alarm Codes" key is pressed.
Table 1
EMCP+P Parallel Functions    
Parallel Function     Bus Status     ECS Position     Parallel Mode Switch Position     GSC+P Frequency Control     Close Breaker Output    
Automatic Synchronization     Live     Start or Auto (1)     Auto     Controls frequency, brings generator in sync with bus.     When synchronization conditions are met, activates for a programmed duration.    
CCM controlled Automatic Synchronization     Live     Auto (2)     Auto     Controls frequency, brings generator in sync with bus.     When synchronization conditions are met, activates for a programmed duration.    
CCM Remote Synchronization Test     Live     Auto (3)     Auto     Controls frequency, brings generator in sync with bus.     Not activated.    
CCM Dead Bus Paralleling     Dead     Auto (2)     Auto     Does not control frequency.     Activates for a programmed duration.    
Dead Bus Paralleling     Dead     Start or Auto (1)     Auto     Does not control frequency.     Activates for a programmed duration.    
Semi-Automatic Paralleling     Live     Start or Auto (1)     Semi-Auto     Controls frequency, brings generator in sync with bus.     When synchronization conditions are met, activates continuously. Enables manual breaker closure. (4)    
Permissive Paralleling     Live     Start or Auto (1)     Permissive     Does not control frequency.     When synchronization conditions are met, activates continuously. Enables manual breaker closure. (5)    
Off     Live or Dead     Off/Reset, Auto, Start, Stop     Off     Does not control frequency.     Not activated.    
( 1 ) Remote initiate contacts are closed.
( 2 ) With remote start command and remote auto-synch