LATCH GP-CONSOLE 1834910 - Caterpillar

normal functions of the keys are in the following list.Leftmost Key - This key only functions when the GSC is in service mode. See the topic 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 (5). 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 (4) and lower display (5) are ON. On the optional alarm module, all of the indicators are ON and the horn will sound. Alarm Codes Key - If fault alarm indicator (3) is FLASHING, pressing this key causes upper display (4) to show the corresponding fault code. Pressing this key again resumes the showing of generator output information on upper display (4). If fault alarm indicator (3) is OFF, this key has no function. See Systems Operation, "Fault Description"for more information on fault codes.Exit Key - This key only functions when the GSC is in service mode. See Systems Operation, "Service Mode" for more information. Service Mode Key - Pressing this key causes the GSC to enter service mode. See Systems Operation, "Service Mode" for more information. Relays
Illustration 3 g00310263
Relay Module On Rear Of GSC
Illustration 4 g00311253
Relays In Relay Module (1) Jumper block.The relays are located in the relay module on the rear of the GSC. The relays are permanently attached within the relay module and the relays are not removable. The entire relay module is replaced if a relay is faulty. See Testing and Adjusting, "Schematics and Wiring Diagrams (DC Schematics)"for more information.Some of the contacts of the relays are internally connected to the terminals of the relay module. The contacts are available for the customer to use. The voltage and current specifications for each terminal (relay) are listed in the following table. Note: Jumper block (1) is used to select the voltage range of the GSC voltmeter. Jumper block (1) is installed for systems with 700 volts full scale AC inputs. Jumper block (1) is NOT installed for systems with 150 volts full scale AC inputs or for any unit with external potential transformers. The relay module comes factory equipped with jumper block (1) installed. See Testing and Adjusting, "AC Voltage Range Selection".
Table 1
Load Specifications For GSC Relay Module    
Relay Module Terminal No.     Rating For Resistive Loads     Rating For Inductive Loads    
RM13, 14 - K1-EGR N/O     0.45A at 24DCV     none (1)    
RM15 - K7-FCR N/O
RM16 - K3-CTR N/O
RM17 - K3-CTR N/C
RM18 - K4-SMR N/O
RM19 - K6-ASR N/O
RM20 -