RING-PISTON 6L9736 - Caterpillar

Option OP6 is the option that is used to program spare inputs. OP6 is also used to program the spare output to meet the requirements of the customer or the requirements of a particular application. In addition, there are three spare indicators on the face of the GSC+. The spare indicators can be programmed to activate under certain conditions. On 3412 engines, the spare inputs are located in the customer connection box.
Table 1
Input/Output Terminations On EMCP II+    
Termination    Description    
SW1     Spare Input 1    
SW2     Spare Input 2    
SW3     Spare Input 3    
SW4     Spare Input 4    
SPARE     Spare Output    
PSR-NO     Programmable Spare Relay NO Contacts    
PSR-NC     Programmable Spare Relay NC Contacts    Note: The service mode cannot be entered when the ECS is in the AUTO position.Note: To access the Service Mode, any active shutdown fault must be made inactive. A shutdown fault is active if a shutdown indicator is FLASHING. To temporarily change a shutdown fault to an inactive fault, turn the ECS to the OFF/RESET position. If the jumper from terminal 6 to terminal 9 is not installed on the ECS, the GSC+ does not power up in OFF/RESET and any active shutdown fault must be corrected before entering the Service Mode.Spare Inputs
The spare inputs are referred to as SP1, SP2, SP3 and SP4. The spare inputs are accessed through the terminal strip. The terminal strip is located in the customer connection box on 3412 engines. The terminations for the spare inputs that are located on the terminal strip are listed below.
SP1 - On certain generators this is marked as SW1
SP2 - On certain generators this is marked as SW2
SP3 - On certain generators this is marked as SW3
SP4 - On certain generators this is marked as SW4The active input state response that is taken and the time delay for each spare input is programmable. The GSC+ responds to the active state of an input and the response can be delayed. Setpoints SP01 through SP12 are used for the programming of the spare inputs. Table 2 describes each of the setpoints.
Illustration 1 g00409441
Typical Active High Input Configuration For Spare Input 1 (SP1).
Illustration 2 g00409451
Typical Active Low Input Configuration For Spare Input 1 (SP1). The GSC+ must be programmed to accept a HIGH active input state or a LOW active input state. A HIGH active input state is +5 DCV to the voltage of the batteries. A LOW active input state is "B-". When an input is programmed for a HIGH active input state, a HIGH signal at the input creates a spare fault condition. When an input is programmed for a LOW active input state, a LOW signal at the input creates a spare fault condition. When an input is programmed for a LOW active input state, a LOW signal at the input is considered as a spare fault condition. A HIGH signal at the input is considered as a normal condition. Setpoints