ECU Run Signal Debugging - Revision history

Sean Sanders at 17:55, 27 July 2022

2022-07-27T17:55:32Z

← Older revision		Revision as of 17:55, 27 July 2022
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	The following show typical wiring and expected signals when the unit is off or on.		The following show typical wiring and expected signals when the unit is off or on.

	<nowiki></nowiki>Insert Images		[[File:Eng off2.png]]

			[[File:Eng running2.png]]

Sean Sanders at 16:21, 27 July 2022

2022-07-27T16:21:45Z

← Older revision		Revision as of 16:21, 27 July 2022
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	The following show typical wiring and expected signals when the unit is off or on.		The following show typical wiring and expected signals when the unit is off or on.
	~~[[File:Eng off2.png\|thumb\|967x967px]]~~

			<nowiki></nowiki>Insert Images















	~~[[File:Eng running2.png\|thumb\|968x968px]]~~

Sean Sanders at 15:59, 27 July 2022

2022-07-27T15:59:43Z

@@ Line 1: / Line 1: @@
-=== CAT->Brain (Annunciator) interface ===
+=== CAT->Brain (Annunciator) Interface ===
 The CAT panel has one return signal to tell the annunciator that the engine is running. On Panel schematics, this is called “ADEM RUN SIGNAL”, and closes a relay to ground. The contact of the relay is wired to digital input 27, which is automatically filled in as a normal digital input called “ADEM RUN STATUS”.
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 The following show typical wiring and expected signals when the unit is off or on.
-<nowiki>*</nowiki>Insert Images*

Sean Sanders: Created page with "=== CAT->Brain (Annunciator) interface === The CAT panel has one return signal to tell the annunciator that the engine is running. On Panel schematics, this is called “ADEM RUN SIGNAL”, and closes a relay to ground. The contact of the relay is wired to digital input 27, which is automatically filled in as a normal digital input called “ADEM RUN STATUS”. The coil side of the relay is wired to two terminal blocks. On most ADEM systems, the run signal is ground dur..."

2022-07-21T21:37:12Z

Created page with "=== CAT->Brain (Annunciator) interface === The CAT panel has one return signal to tell the annunciator that the engine is running. On Panel schematics, this is called “ADEM RUN SIGNAL”, and closes a relay to ground. The contact of the relay is wired to digital input 27, which is automatically filled in as a normal digital input called “ADEM RUN STATUS”. The coil side of the relay is wired to two terminal blocks. On most ADEM systems, the run signal is ground dur..."

New page

=== CAT->Brain (Annunciator) interface ===
The CAT panel has one return signal to tell the annunciator that the engine is running. On Panel schematics, this is called “ADEM RUN SIGNAL”, and closes a relay to ground. The contact of the relay is wired to digital input 27, which is automatically filled in as a normal digital input called “ADEM RUN STATUS”.

The coil side of the relay is wired to two terminal blocks. On most ADEM systems, the run signal is ground during run, so the other coil side of the relay is wired to keyswitch power. On some ADEM systems, the run signal is power during run, so the other side of the coil is wired to ground. Both cases result in a relay that is powered during run. The relay should go from off to on when the unit starts, and the input on the annunciator (DI-27) will go from faulted to unfaulted when the relay comes on.

Verify when the engine is off that DI-27 shows FAULTED in the fault list (home screen 'state' box selection, then 'faults' tab).

The following show typical wiring and expected signals when the unit is off or on.

<nowiki>*</nowiki>Insert Images*