X-Virus-Scanned: clean according to Sophos on Logan.com From: "Stephen Izett" Received: from mail-pf0-f180.google.com ([209.85.192.180] verified) by logan.com (CommuniGate Pro SMTP 6.1.11) with ESMTPS id 8856618 for flyrotary@lancaironline.net; Sun, 07 Aug 2016 21:24:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.192.180; envelope-from=steveize@gmail.com Received: by mail-pf0-f180.google.com with SMTP id y134so113568148pfg.0 for ; Sun, 07 Aug 2016 18:24:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:message-id:mime-version:subject:date:references:to:in-reply-to; bh=BNWvZfzfK54xFrHhVg9SKwWocueDzrzI/e9EOX9YvuY=; b=j3lV7FNROcNIv7JxECaB4xboD+UVmTN1oo1L76lbSd4NdiYND8jL+p5uErkll+MWaS SBquk1ESbWP1gFCmSVlYrDHTNNrvyexK9fPgDE3njagrwKHzdQnLsiJGmRTIzygiYrKv 9U7jyVSBHnk13lhdkkeGSYy+7of8o3VDDHGSRz3IUoGbguew0eEia13Qyox8unqBoS9L aDWoXa5bfObJ0I73H3JkTTRF8t8koi4OV+qzsYtTYvf0sT2DAOImUXw0M0ptJ85uAMzu ZKxr7phnVsFHeTfVJWQaxN2gEFuk96RAn4fzcud1cl190BveJbZKR21NvhHToH0QfPIp lmog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:message-id:mime-version:subject:date :references:to:in-reply-to; bh=BNWvZfzfK54xFrHhVg9SKwWocueDzrzI/e9EOX9YvuY=; b=Qh/DEujOqXOKixIjvo1REK4tFkvZ3gbQADyOfg1p2EHuWKhuXFxCSqSHRTtx/BLNjE VHEiq1Pa8jN4LoOy360i9s9gRKXb5uUDbe/eCRcGZ5tD0bv8n9ay19RKGabiNTtSK520 CUK5E1QUFedO98+w/KbtWKQb++Kvz5UhLhTh89cz9dXFOYB11IDYDPzYeoSO+BQevWwu d+O0aa+5QipaWWK96IPGMPGvT92Uv7pzeM3MrmsNIVwNWgycdgHlie9w0FPKo77RnvlC V08Dk/jEgvI90kyi4AqLF9loKhOl8sAZFAOuaq/8ftkKFFWqzOt3ZemyDYdl6E85ep6M APag== X-Gm-Message-State: AEkoous7gaQ2W0lszsYtYBJ7czHkGb02A2KhbtYWNXThYGCytdRSoRIIaoDKhbyhK12PeQ== X-Received: by 10.98.216.199 with SMTP id e190mr158038662pfg.123.1470619440082; Sun, 07 Aug 2016 18:24:00 -0700 (PDT) Return-Path: Received: from [10.1.1.5] (124-148-241-223.dyn.iinet.net.au. [124.148.241.223]) by smtp.gmail.com with ESMTPSA id m24sm43084278pfi.34.2016.08.07.18.23.57 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 07 Aug 2016 18:23:59 -0700 (PDT) X-Google-Original-From: Stephen Izett Content-Type: multipart/alternative; boundary="Apple-Mail=_0094CAA1-5883-4845-BBCD-178E1366FCFF" Message-Id: <7F4D88FB-31DC-4E61-BD43-B0C7D3F4F71F@icloud.com> Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: [FlyRotary] Re: Finding the gremlin Date: Mon, 8 Aug 2016 09:24:04 +0800 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3124) --Apple-Mail=_0094CAA1-5883-4845-BBCD-178E1366FCFF Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Steve, I meant to ask about the saturated injectors. I don=92t remember = this post.=20 Would you mind sending me the image so I know what I=92m looking for and = explain the symptoms etc. Cheers Steve Izett > On 8 Aug 2016, at 9:06 AM, Steven W. Boese = wrote: >=20 > Steve, >=20 > I've attached a photo of the hardware from a system that I used to = examine the signals and data frame from my EC2's. The DB37 connector is = a TEE that has a straight through male-female connection with a third = DB37 connector on it. This enables the connector to be inserted onto = the EC2 without making any changes to the aircraft wiring. The third = connector is used to capture 8 channels of data using a NI USB 6008 or = NI USB 6009 module and a PC running NI Signalexpress software. The = image posted recently of the saturated injector signals was generated = with this system. >=20 > The hardware also allows the PC to interrogate the EC2 to obtain its = data frame which is decoded and the parameters shown on the screen while = the engine is running. The mixture correction table can also be = captured and modified while the engine is running. In addition, the = mixture correction table can be captured to the PC, modified while = disconnected from the EC2 and then uploaded back to the EC2 after = re-establishing the connection. An EM(x) must not be active when doing = this. The software I developed and instructions for doing this was = available on a website I maintained, but the website was discontinued = due to the limited interest shown in it. >=20 > Steve Boese >=20 >=20 > =20 > From: Rotary motors in aircraft on = behalf of steve Izett > Sent: Sunday, August 7, 2016 5:52:16 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Finding the gremlin > =20 > Your right Bobby, thats what I=92m thinking. A male-female D-sub37 = that I can plug into the current loom that brings out the CAS inputs, = Coil and Injector outputs. > Cheers > Steve >> On 8 Aug 2016, at 1:45 AM, Bobby J. Hughes = > = wrote: >>=20 >> Steve >>=20 >>> Last night I had the thought of making a DB37 breakout so I can = easily get a CRO onto and monitor any input/outputs to the EC2.=20 >>=20 >>=20 >> A simple screw terminal strip may be simpler use for testing. That = would allow full access to the CAS wires to add an external 1k resistor = and verify p-p voltage. =20 >> Bobby >>=20 >> Sent from my iPad >>=20 >> On Aug 6, 2016, at 7:23 PM, steve Izett > wrote: >>=20 >>> Thanks Tracy >>> The NOP indication is directly linked to RPM - about 6K (Dynon miss = reads at the same point). But no missing occurs at this point, engine = continues smooth. >>> When the gremlin strikes (all hell breaks loose) it does appear = clearly related to load - just before 24=94Hg. >>>=20 >>> Ive never checked the timing with a light or whats in the EC2 = (dumb), just thought I'd zero=92d all parameters in non volatile memory. >>> I=92m going past the hangar today so will fire her up and read the = static timing setting via the EM3. >>>=20 >>> As far as Earths. I have a noisy one and a quiet one and one for the = gear pump. >>> Each has 10 gauge wire 26 inches back to battery. >>> Each Earth point is an AN bolt and nut clamping all those paticular = earths lugs either side of the 10 gauge earth lug. All lugs are = soldered. >>>=20 >>> Power Busses are: Engine, Flight and Gear (30 amp pump) each fed by = 10 gauge wire 36 inches back to battery. >>> In order to easily get to all electrical systems I opted for a two = buss blade fuse arrangement. (The gear power is a 30amp breaker) >>> This does mean on the engine buss, EC2, EM3, Coils, Injectors, = Pumps, are fed from the same point via 10 gauge wire rather than the EC2 = independently back to to battery. >>>=20 >>> Thanks Steve and Bobby >>> I kept and ran the injector lines and coil trigger lines = independently seperate from each other and all other wires where = possible. >>> eg. Coils go to the right and through the firewall. Injectors to the = left and though the firewall. >>>=20 >>> I do pull the throttle each time the gremlin strikes trying to = minimise damage to the drive line. >>>=20 >>> Last night I had the thought of making a DB37 breakout so I can = easily get a CRO onto and monitor any input/outputs to the EC2.=20 >>> I=92ll do this before next Friday enabling testing of electrical = systems. >>>=20 >>> I=92ll check the CAS signal amplitude and check the injector = signals. >>> I would like to get a video recorder, recording everything as I = always forget to check some parameter each time I=92m testing. >>>=20 >>> Steve >>>=20 >>>=20 >>>=20 >>>=20 >>>> On 7 Aug 2016, at 4:12 AM, Tracy > wrote: >>>>=20 >>>> Steve wrote: >>>> "Note to Tracy. - Did you incorporate in your code any way of = knowing if the EC2 entered a watchdog routine?" >>>>=20 >>>> Sort of. That NOP you are seeing is a good indication that the = ec2/3 has been jolted out of its normal operating loop and is trying to = reboot. The backfiring is too. Electrical noise (probably in the = grounding scheme of electrical wiring layout) is the most likely = candidate. =20 >>>>=20 >>>> Tracy >>>>=20 >>>> Sent from my iPad >>>>=20 >>>>> On Aug 5, 2016, at 17:31, steve Izett > wrote: >>>>>=20 >>>>> Note to Tracy. - Did you incorporate in your code any way of = knowing if the EC2 entered a watchdog routine? >>>>=20 >>>> -- >>>> Homepage: http://www.flyrotary.com/ >>>> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html = >>>=20 >>>=20 >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html = >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html = --Apple-Mail=_0094CAA1-5883-4845-BBCD-178E1366FCFF Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Steve, I meant to ask about the saturated injectors. I don=92t = remember this post. 
Would you mind sending me the = image so I know what I=92m looking for and explain the symptoms = etc.

Cheers

Steve Izett
On 8 Aug 2016, at 9:06 AM, Steven W. Boese = <flyrotary@lancaironline.net> wrote:

Steve,

I've attached a photo of the hardware = from a system that I used to examine the signals and data frame from my = EC2's.  The DB37 connector is a TEE that has a straight = through male-female connection with a third DB37 connector on it.  = This enables the connector to be inserted onto the EC2 without making = any changes to the aircraft wiring.  The third connector is used to = capture 8 channels of data using a NI USB 6008  or NI USB 6009 = module and a PC running NI Signalexpress software.  The image = posted recently of the saturated injector signals was generated with = this system.

The hardware also allows the PC to = interrogate the EC2 to obtain its data frame which is decoded and the = parameters shown on the screen while the engine is running.  The = mixture correction table can also be captured and modified while the = engine is running.  In addition, the mixture correction table = can be captured to the PC, modified while = disconnected from the EC2 and then uploaded back to the EC2 after = re-establishing the connection.  An EM(x) must not be active when = doing this. The software I developed and instructions for doing this was = available on a website I maintained, but the website was discontinued = due to the limited interest shown in it.

Steve = Boese


  
From: Rotary motors in aircraft = <flyrotary@lancaironline.net> on behalf of steve Izett = <flyrotary@lancaironline.net>
Sent: Sunday, August 7, 2016 = 5:52:16 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: Finding the = gremlin
 
Your right Bobby, thats what I=92m thinking. A = male-female D-sub37 that I can plug into the current loom that brings = out the CAS inputs, Coil and Injector outputs.
Cheers
Steve
On 8 Aug = 2016, at 1:45 AM, Bobby J. Hughes <flyrotary@lancaironline.net> wrote:

Steve

Last night I had the thought of making a DB37 = breakout so I can easily get a CRO onto and monitor any input/outputs to = the EC2. 


A simple screw = terminal strip may be simpler use for testing. That would allow full = access to the CAS wires to add an external 1k resistor and verify p-p = voltage.  
Bobby

Sent from my iPad

On Aug = 6, 2016, at 7:23 PM, steve Izett <flyrotary@lancaironline.net> wrote:

Thanks Tracy
The NOP indication is directly linked to RPM - about 6K = (Dynon miss reads at the same point). But no missing occurs at this = point, engine continues smooth.
When= the gremlin strikes (all hell breaks loose) it does appear clearly = related to load - just before 24=94Hg.

Ive never checked the = timing with a light or whats in the EC2 (dumb), just thought I'd zero=92d = all parameters in non volatile memory.
I=92m going past the hangar today so will fire her up and = read the static timing setting via the EM3.

As far as Earths. I = have a noisy one and a quiet one and one for the gear pump.
Each has 10 gauge wire 26 inches back to = battery.
Each Earth point is an AN = bolt and nut clamping all those paticular earths lugs either side of the = 10 gauge earth lug. All lugs are soldered.

Power Busses are: = Engine, Flight and Gear (30 amp pump) each fed by 10 gauge wire 36 = inches back to battery.
In order = to easily get to all electrical systems I opted for a two buss blade = fuse arrangement. (The gear power is a 30amp breaker)
This does mean on the engine buss, EC2, EM3, = Coils, Injectors, Pumps, are fed from the same point via 10 gauge wire = rather than the EC2 independently back to to battery.

Thanks = Steve and Bobby
I kept and ran the = injector lines and coil trigger lines independently seperate from each = other and all other wires where possible.
eg. Coils go to the right and through the firewall. Injectors = to the left and though the firewall.

I do pull the throttle = each time the gremlin strikes trying to minimise damage to the drive = line.

Last night I had the thought of making a DB37 breakout so I = can easily get a CRO onto and monitor any input/outputs to the EC2. 
I=92ll do this before next Friday enabling testing of = electrical systems.

I=92ll check the CAS signal amplitude and = check the injector signals.
I = would like to get a video recorder, recording everything as I always = forget to check some parameter each time I=92m testing.

Steve




On 7 = Aug 2016, at 4:12 AM, Tracy <flyrotary@lancaironline.net> wrote:

Steve wrote:
"Note to Tracy. - Did you incorporate in your code any way of = knowing if the EC2 entered a watchdog routine?"

Sort of.  That NOP you are seeing is a = good indication that the ec2/3 has been jolted out of its normal = operating loop and is trying to reboot.  The backfiring is too. =    Electrical noise (probably in the grounding scheme of = electrical wiring layout) is the most likely candidate.  

Tracy

Sent from my iPad

On Aug = 5, 2016, at 17:31, steve Izett <flyrotary@lancaironline.net> wrote:

Note to Tracy. - Did you incorporate in your code any way of = knowing if the EC2 entered a watchdog routine?

--
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