PULLEY-ALTERNATOR 7W4804 - Caterpillar

Illustration 5 g00793332
Keypad (3) is used to control the information that is shown on upper display and lower display. The seven keys have two sets of functions, normal functions and service functions. For a description of the service functions of the keys, refer to Systems Operation / Testing and Adjusting, SENR5828. The normal functions of the keys are in the following list.Leftmost Key - This key only functions when the GSC is in service mode. Phase Select Key - This key selects the phase of the generator output that is shown on the GSC. Pressing this key allows the operator to check the voltage, current, and frequency of each phase one at a time.Engine Meter Key - This key stops the scrolling of engine conditions on lower display (2). The display continuously shows the value for one particular engine condition. The pointer flashes in order to indicate that scrolling is stopped. Pressing the key again resumes the scrolling of engine conditions. Lamp Test Key - This key performs a lamp test on the GSC and the optional alarm module. The eight fault indicators are ON CONTINUOUSLY. Every segment of upper display (1) and lower display (2) is ON. On the optional alarm module, all of the indicators are ON and the horn will sound. Alarm Code Key - Press the fault alarm indicator (4) in order to show the corresponding fault code. Pressing this key again resumes the showing of generator output information on upper display (1). If fault alarm indicator (4) is OFF, this key has no function. Refer to Systems Operation / Testing and Adjusting, SENR5828 for more information on fault codes.Exit Key - This key only functions when the GSC is in service mode. Refer to Systems Operation / Testing and Adjusting, SENR5828 for more information. Service Mode Key - Pressing this key causes the GSC to enter service mode. Refer to Systems Operation / Testing and Adjusting, SENR5828 for more information.Alarm Module
An alarm condition will not shut down the engine. However, an alarm may precede a shutdown. An alarm indicates a serious condition that requires immediate attention. If an alarm condition occurs, the alarm module uses an indicator and a horn to inform the operator. There are several different types of alarm modules that are available. Alarm modules are optional. The features of the alarm module are identified in Illustration 6.
Illustration 6 g00792430
National Fire Protection Association (NFPA) 110 Alarm Module (1) "HIGH COOLANT TEMP" (2) "LOW COOLANT TEMP" (3) "LOW OIL PRESSURE" (4) "LOW FUEL LEVEL" (5) "SYSTEM NOT IN AUTO" (6) "LOW BATTERY VOLTAGE" (7) "RUPTURE BASIN TANK" (8) "HIGH FUEL LEVEL" (9) "ALARM SILENCE" button
"HIGH COOLANT TEMP" (1)
"LOW COOLANT TEMP" (2)
"LOW OIL PRESSURE" (3)
"LOW FUEL LEVEL" (4)
"SYSTEM NOT IN AUTO" (5)
"LOW BATTERY VOLTAGE" (6)
"RUPTURE BASIN TANK" (7)
"HIGH FUEL LEVEL" (8) Note: These other indicators are available as options: "GENERATOR ON LOAD", "CHARGER MALFUNCTION", "LOW OIL LEVEL", "LOW COOLANT LEVEL", "LOW OIL PRESSURE SHUTDOWN", "OVERCRANK SHUTDOWN", "HIGH COOLANT TEMP SHUTDOWN" and "OVERSPEED SHUTDOWN".
"ALARM SILENCE" (9)