SENSOR GP-SPEED 1W5559 - Caterpillar

There are two separate procedures that must be performed in order to program the EMCP 3 digital inputs. The first procedure involves programming the active state of the input as either "Active High" or as "Active Low". The second procedure involves programming the event input functions.Digital Inputs
The main purpose for the digital inputs is to add additional monitoring capabilities for the engine or the generator. The inputs can be configured by navigating to the "EVENT I/P FUNCTIONS" parameter under the "SETPOINTS" menu.Note: There are eight digital inputs on EMCP 3.2 and EMCP 3.3. There are six digital inputs on EMCP 3.1. On all three levels of controls, the first and second digital inputs are dedicated and cannot be programmed.The digital inputs of the EMCP 3 are tied to an internal pull-up resistor inside the control. Therefore, if there is no connection to a digital input, then the digital input will read as a logical high. A ground or battery negative input should be wired to each EMCP 3 digital input. If an active high configuration is desired, then the ground or battery negative input should be wired through a normally closed switch. If an Active Low configuration is desired, then the ground or battery negative input should be wired through a normally open switch.Digital input #1 is dedicated for Emergency Stop and digital input #2 is dedicated for Remote Initiate. The other four or six inputs can be configured to trigger alarms or shutdowns in the EMCP 3. In the EMCP 3 software, digital inputs 3 through 8 are linked to functions that are called "EVENT INPUT FUNCTIONS". In the EMCP 3.1 software, digital inputs 3 through 6 are linked to functions that are called "EVENT INPUT FUNCTIONS". Digital inputs #1 and #2 are dedicated inputs. Therefore, digital input #3 is linked to event input function #1, digital input #4 is linked to event input function #2, and so on. Refer to Illustration 1.
Illustration 1 g01228372
Digital Input #1 - Digital input #1 is used for "Emergency Stop". The input must be wired to battery negative through an emergency stop switch. The input can be set to activate on an active high (normally closed contact) or an active low (normally open contact). If the operator wants to enable the "Reduced Power Mode", then the emergency stop must be configured for active low.ReferenceTesting and Adjusting , "Electronic Control Module (Generator Set) - Configure"Activating the emergency stop input will either cause the generator set to stop immediately or will prevent the generator set from starting. Once digital input #1 goes active, the engine will not start until the event is reset.ReferenceSystem Operation , "Event Resetting"Digital Input #2 - Digital input #2 is used for remotely starting and stopping the generator set. The input must be wired to battery negative through a "Remote Initiate" switch. The input can be set to activate on an active high (normally closed contact) or an active low (normally open contact). If the input is active, and the