SHAFT AS-ROCKER ARM 4N1108 - Caterpillar

OP6 is the option for the programming of the following parameters: Spare Inputs, Spare Indicators, Spare Outputs and Programmable Spare Relay Outputs. These spare inputs and outputs are provided in order to satisfy the needs of the customer.Note: On EMCP II+P panels, spare input 3 and spare input 4 are not available for use by the customer. If a DVR is fitted to the generator, spare input 1 is used for a DVR shutdown fault. Any other fault signals can be connected to spare input 2. Multiple signals can be separated using diodes provided that all signals are switched negative or all signals are switched positive. A mixture of both types of signals is incorrect.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 within the control panel on the rear wall. 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 "SW4"The active input state, the 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 1 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 SP01, SP04, SP07 and SP10 are used to program the active input state of the spare inputs. Table 1 describes each of the setpoints.Note: If an input is left floating, the internal circuitry of the GSC+P pulls the input high and the GSC+P responds accordingly.The GSC+ must be programmed for a response to an active spare fault. The GSC+P responds by treating the condition as a fault shutdown or a fault alarm. Setpoints SP02, SP05, SP08 and SP11 are used for the programming of the response. Table 1 describes the setpoints below.Note: Spare faults that are programmed to shutdown are ignored by the GSC+P