Annunciator Purge Setup - Revision history

Thomas Peterson: /* Purge Sequence Setup */

2025-08-13T13:58:26Z

Purge Sequence Setup

← Older revision		Revision as of 13:58, 13 August 2025
Line 24:		Line 24:
	#Blowdown and suction closed		#Blowdown and suction closed

	~~There~~ are ~~a variety of detailed settings in the sequence~~, ~~see~~ the ~~setup page for more information~~.		The two setup pages are shown blow, which show the 6 steps.

			[[File:Purge 1.png]]

			[[File:Purge 2.png]]

	The purge sequence will not actually be entered unless the “Low Purge Alarm” mentioned above is set to something other than zero. If the suction is below the setting at startup, the purge sequence will run before pre lube.		The purge sequence will not actually be entered unless the “Low Purge Alarm” mentioned above is set to something other than zero. If the suction is below the setting at startup, the purge sequence will run before pre lube.

Thomas Peterson at 15:11, 17 February 2025

2025-02-17T15:11:56Z

← Older revision		Revision as of 15:11, 17 February 2025
Line 4:		Line 4:
	# Automated purge sequence		# Automated purge sequence

	~~Note that either auto-crank or an ECU is needed for the automated sequenece~~

	=== Low Purge Alarm ===		=== Low Purge Alarm ===
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	=== Purge Sequence Setup ===		=== Purge Sequence Setup ===

			Note that either auto-crank or an ECU is needed for this sequenece.

	The purge sequence can be used to automatically purge the engine on startup. It requires the presence of a system-controlled suction, bypass, and blowdown valve. The suction valve can be set up as a suction block valve or a proportional suction PID loop. The setup is found at “Settings” -> “Brain” -> “Outputs Setup” -> “Purge Sequence Setup”. The general sequence is:		The purge sequence can be used to automatically purge the engine on startup. It requires the presence of a system-controlled suction, bypass, and blowdown valve. The suction valve can be set up as a suction block valve or a proportional suction PID loop. The setup is found at “Settings” -> “Brain” -> “Outputs Setup” -> “Purge Sequence Setup”. The general sequence is:

Thomas Peterson at 15:11, 17 February 2025

2025-02-17T15:11:33Z

← Older revision		Revision as of 15:11, 17 February 2025
Line 4:		Line 4:
	# Automated purge sequence		# Automated purge sequence

	Note that either auto-crank or an ECU is needed for ~~these features~~		Note that either auto-crank or an ECU is needed for the automated sequenece

	=== Low Purge Alarm ===		=== Low Purge Alarm ===

Thomas Peterson: /* Purge Sequence Setup */

2022-08-04T22:22:12Z

Purge Sequence Setup

← Older revision		Revision as of 22:22, 4 August 2022
Line 18:		Line 18:
	The purge sequence can be used to automatically purge the engine on startup. It requires the presence of a system-controlled suction, bypass, and blowdown valve. The suction valve can be set up as a suction block valve or a proportional suction PID loop. The setup is found at “Settings” -> “Brain” -> “Outputs Setup” -> “Purge Sequence Setup”. The general sequence is:		The purge sequence can be used to automatically purge the engine on startup. It requires the presence of a system-controlled suction, bypass, and blowdown valve. The suction valve can be set up as a suction block valve or a proportional suction PID loop. The setup is found at “Settings” -> “Brain” -> “Outputs Setup” -> “Purge Sequence Setup”. The general sequence is:

	1. Blowdown, bypass, and suction are closed		#Blowdown, bypass, and suction are closed
	2. Blowdown opened; suction opened (slowly if possible)		#Blowdown opened; suction opened (slowly if possible)
	3. Bypass opened		#Bypass opened
	4. Blowdown and suction closed		#Blowdown and suction closed

	There are a variety of detailed settings in the sequence, see the setup page for more information.		There are a variety of detailed settings in the sequence, see the setup page for more information.

	The purge sequence will not actually be entered unless the “Low Purge Alarm” mentioned above is set to something other than zero. If the suction is below the setting at startup, the purge sequence will run before pre lube.		The purge sequence will not actually be entered unless the “Low Purge Alarm” mentioned above is set to something other than zero. If the suction is below the setting at startup, the purge sequence will run before pre lube.

Thomas Peterson at 22:21, 4 August 2022

2022-08-04T22:21:59Z

← Older revision		Revision as of 22:21, 4 August 2022
Line 1:		Line 1:
	~~The annunciator Purge / Blowdown setup screen is used to set up~~ two features:		There are two features related to unit purge:

	# Low Purge Alarm		# Low Purge Alarm
	# ~~High blowdown limit / alarm~~		# Automated purge sequence

	~~The setup page~~ is ~~shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator Setup" -> "Outputs Setup" -> "Purge / Blowdown Limits".~~		Note that either auto-crank or an ECU is needed for these features

	~~Note that neither of these functions will work if autostart or an ECU is not used.~~		=== Low Purge Alarm ===

	~~=== Annunciator~~ Purge ~~/ Blowdown Alarm Setup ===~~		[[File:Purge-limit.png\|600px]]
	~~← Controls — Brain (Annunciator)~~

	The ~~annunciator Purge / Blowdown setup screen~~ is used to set ~~up two features:~~		The purge alarm is used to specify a minimum suction level to allow the engine to start. In the above screenshot, this is 10 psi. If the suction is below 10 psi, starting the engine will always go directly to FAULTED. If unused, this can be set to 0.

	~~# Low Purge Alarm~~		The sensor used for suction does not have to be specified- the system will find the analog input with the name "Suction", "Suction Stg 1", etc.
	~~# High blowdown limit / alarm~~

	~~The setup page is shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator~~ Setup~~" -> "Outputs Setup" -> "Purge / Blowdown Limits".~~		=== Purge Sequence Setup ===

	~~Note that neither~~ of ~~these functions will work if autostart~~ or ~~an ECU~~ is ~~not used~~.		The purge sequence can be used to automatically purge the engine on startup. It requires the presence of a system-controlled suction, bypass, and blowdown valve. The suction valve can be set up as a suction block valve or a proportional suction PID loop. The setup is found at “Settings” -> “Brain” -> “Outputs Setup” -> “Purge Sequence Setup”. The general sequence is:

	~~[[File:Purge Setup Screen~~.~~jpg]]~~		1. Blowdown, bypass, and suction are closed
			2. Blowdown opened; suction opened (slowly if possible)
			3. Bypass opened
			4. Blowdown and suction closed

	~~=== Purge Alarm Setup ===~~		There are a variety of detailed settings in the sequence, see the setup page for more information.
	~~The purge alarm is used to specify~~ a ~~minimum suction level to allow~~ the ~~engine to start. In the above screenshot~~, ~~this is 10 psi. If~~ the ~~suction is below 10 psi, starting the engine will always go directly to FAULTED. If unused, this can be set to 0.~~
	~~The sensor used~~ for ~~suction does not have to be specified- the EIM will find the analog input with the name "Suction", "Suction Stg 1", etc~~.

	~~=== Blowdown Limit Setup ===~~		The purge sequence will not actually be entered unless the “Low Purge Alarm” mentioned above is set to something other than zero. If the suction is below the setting at startup, the purge sequence will run before pre lube.
	The ~~blowdown limit can~~ be ~~specified, in PSI, that signifies~~ the ~~maximum psi permissible on suction before the engine will continue the start sequence. If used,~~ set ~~this value~~ to something other than zero.
	~~During startup, if a blowdown valve is specified in the valve setup screen, it will be opened if above the "High Blowdown Limit" and until it is below that limit~~. If ~~the amount of time in "Blowdown max time" passes and~~ the suction ~~pressure~~ is ~~still above~~ the ~~limit~~, the ~~system~~ will ~~fault out.~~
	~~Note that if no blowdown valve is present in the system this function can still be used (with a "max time" of 1 second) to fault-out if the system is pressurized on startup~~.

Thomas Peterson: Thomas Peterson moved page Annunciator Purge & Blowdown Alarm Setup to Annunciator Purge Setup

2022-08-04T22:17:23Z

Thomas Peterson moved page Annunciator Purge & Blowdown Alarm Setup to Annunciator Purge Setup

← Older revision	Revision as of 22:17, 4 August 2022
(No difference)

Sean Sanders: /* Annunciator Purge / Blowdown Alarm Setup */

2022-08-02T18:44:00Z

Annunciator Purge / Blowdown Alarm Setup

← Older revision		Revision as of 18:44, 2 August 2022
Line 20:		Line 20:
	Note that neither of these functions will work if autostart or an ECU is not used.		Note that neither of these functions will work if autostart or an ECU is not used.

	''Purge Setup ~~Sreeen''~~		[[File:Purge Setup Screen.jpg]]

	=== Purge Alarm Setup ===		=== Purge Alarm Setup ===

Sean Sanders: /* Annunciator Purge / Blowdown Alarm Setup */

2022-08-02T17:45:32Z

Annunciator Purge / Blowdown Alarm Setup

← Older revision		Revision as of 17:45, 2 August 2022
Line 7:		Line 7:

	Note that neither of these functions will work if autostart or an ECU is not used.		Note that neither of these functions will work if autostart or an ECU is not used.

	<nowiki></nowiki>Insert Image

	=== Annunciator Purge / Blowdown Alarm Setup ===		=== Annunciator Purge / Blowdown Alarm Setup ===

Sean Sanders: Created page with "The annunciator Purge / Blowdown setup screen is used to set up two features: # Low Purge Alarm # High blowdown limit / alarm The setup page is shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator Setup" -> "Outputs Setup" -> "Purge / Blowdown Limits". Note that neither of these functions will work if autostart or an ECU is not used. Insert Image === Annunciator Purge / Blowdown Alarm Setup === ← Controls..."

2022-07-21T22:54:50Z

Created page with "The annunciator Purge / Blowdown setup screen is used to set up two features: # Low Purge Alarm # High blowdown limit / alarm The setup page is shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator Setup" -> "Outputs Setup" -> "Purge / Blowdown Limits". Note that neither of these functions will work if autostart or an ECU is not used. <nowiki>*</nowiki>Insert Image* === Annunciator Purge / Blowdown Alarm Setup === ← Controls..."

New page

The annunciator Purge / Blowdown setup screen is used to set up two features:

# Low Purge Alarm
# High blowdown limit / alarm

The setup page is shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator Setup" -> "Outputs Setup" -> "Purge / Blowdown Limits".

Note that neither of these functions will work if autostart or an ECU is not used.

<nowiki>*</nowiki>Insert Image*

=== Annunciator Purge / Blowdown Alarm Setup ===
← Controls — Brain (Annunciator)

The annunciator Purge / Blowdown setup screen is used to set up two features:

# Low Purge Alarm
# High blowdown limit / alarm

The setup page is shown below. To reach this page, while in "Engineering" access mode navigate to "Annunciator Setup" -> "Outputs Setup" -> "Purge / Blowdown Limits".

Note that neither of these functions will work if autostart or an ECU is not used.

''Purge Setup Sreeen''

=== Purge Alarm Setup ===
The purge alarm is used to specify a minimum suction level to allow the engine to start. In the above screenshot, this is 10 psi. If the suction is below 10 psi, starting the engine will always go directly to FAULTED. If unused, this can be set to 0.
The sensor used for suction does not have to be specified- the EIM will find the analog input with the name "Suction", "Suction Stg 1", etc.

=== Blowdown Limit Setup ===
The blowdown limit can be specified, in PSI, that signifies the maximum psi permissible on suction before the engine will continue the start sequence. If used, set this value to something other than zero.
During startup, if a blowdown valve is specified in the valve setup screen, it will be opened if above the "High Blowdown Limit" and until it is below that limit. If the amount of time in "Blowdown max time" passes and the suction pressure is still above the limit, the system will fault out.
Note that if no blowdown valve is present in the system this function can still be used (with a "max time" of 1 second) to fault-out if the system is pressurized on startup.