BREATHER AS 4I7527 - Caterpillar

Note: The EMCP 3.1 has six programmable Type A relays. The EMCP 3.2 and EMCP 3.3 have eight programmable relays. Six of the relays are Type A relays and two are Type C relays. Type A relays contain a common and one normally open contact. Type C relays contain a common and two contacts, one that is normally open and one that is normally closed.Each relay is rated for 2A @ 30VDC. The relays are "volt free" meaning that the commons are not referenced to anything within the control. The relay contacts are not protected against shorts to battery or ground. Two of the relays are dedicated and cannot be programmed. Relay Output #1 is dedicated to controlling the starter motor. Relay Output #2 is dedicated to fuel enable. The six remaining relay outputs on the EMCP 3.3 and EMCP 3.2 are programmable and can be set to operate based on different conditions. The four remaining relay outputs on the EMCP 3.1 are programmable and can be set to operate based on different conditions.In order to program the relay outputs, the digital selectors must be programmed.Function and Navigation Keys
ReferenceCall outs in this section can be found on the EMCP 3 panel in Systems Operation, "Electronic Control Module (Generator Set)".The keys listed below are used for programming the EMCP 3 and navigating within the menu structure.ReferenceFor a full explanation of the use of the Function keys (Enter, Escape) and the Navigation keys (Scroll Left, Scroll Right, Scroll Up, Scroll Down) that are referenced in this section, see Systems Operation, "Electronic Control Module (Generator Set)"Escape (9) - Used to navigate up (backward) through the menu structure and to back out of data entry screens during set point programming.Enter key (10) - Select a highlighted menu item or save a programmed value.Scroll Right key (11) - During numeric data entry, choose the digit to edit. During certain setpoint adjustments, select or deselect a check box.Scroll Down key (12) - Move down through the main menu or navigate within a list in order to highlight one of the items. Also used to decrement digits (0-9).Scroll Up key (13) - Move up through the main menu or navigate within a list in order to highlight one of the items. Also used to increment digits (0-9).Scroll Left key (14) - During numeric data entry, choose the digit to edit. During certain set point adjustments, select or deselect a check box.Digital Selector Programming
There are eight digital selectors. The digital selectors determine which conditions cause the relay outputs to become active. Only six of the digital selectors are associated with relay outputs.The digital selector is a software function that acts like a 12 position switch. For each output there are 11 different options or conditions that can make the output go active, and one condition to disable the output altogether. The digital selector is used in order to determine which one of those conditions will actually be associated with each digital output. The different options are