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Re: G3600 ECM Control Strategies?

 
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Re: G3600 ECM Control Strategies?

What specifically do you want to know?  About which engine?  G3600 ESS? G3600 A3? G3600 A4?  They are all a bit different with the A4 being the most advanced.

 

Best Regards,

Al Hunt

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Re: G3600 ECM Control Strategies?

 
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Re: G3600 ECM Control Strategies?

I am glad to hear that you were able to get the engine running.  Cranking speed is one of the items that I listed early as something to check.  This has always been an issue to get the customer to make sure that the starting air supply and piping size are adequate to obtain sufficient engine crankins speed.  The SM states that the minimun cranking speed is 80 rpm for the engine to try to run.  I have always recommended that the cranking speed target should be 100-120 rpm for best cranking results.

 

Good luck with the rest of your activities in getting the engine into service.  Remember, an important procedure is to get PC CAL correct.  This is described in detail in the section "Adjusting the BTU in PC CAL" in the Testing and Adjusting, SENR5908, beginning on page 79.  You should have SENR5908-11 or later version for the correct procedure.   Discard all versions -10 or earlier.  They contain insufficient or incorrect information.

 

Best Regards,

Al Hunt

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Re: G3600 ECM Control Strategies?

Thanks a bunch.. the gen-set has finally started.. it is the cranking speed problem... Unfortunately, it was one of our expert that started it with me.. he complaint about the speed at cranking and base on his experience that it must rise up to at least 90 - 100 RPM...Nice meeting you
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Re: Am working on G3612 with ESS panel that am unable to star...

Dear Hunt,

 

I have sent you an E-mail from my official mail address. I hope you have got the mail. I will like to use this as a channel for technical support just as you ve done on the forum. I still hope to ve your phone line for easier conversation. Once again, nice meeting you... Shodiya Kayode.

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Re: Am working on G3612 with ESS panel that am unable to star...

Kayode,

Here are some more comments for you to consider. 

 

Take a look at the topic "Engine will crank but will not start" in the TS manual on page 3-7.  If you haven't looked at this topic, please review it to see if you have checked each item in the list here.

 

The item about the RUN relay in the SCM not opening to the ECM would be particularly applicable.

 

Best Regards,

Al Hunt

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Re: Am working on G3612 with ESS panel that am unable to star...

Kayode,

Has any work been done on the ignition system?  Like has the magneto been removed and reinstalled?  If it has, then the engine must be started with the DDT in the MAG CAL mode.  Otherwise the magneto will put out the primary ignition signal but it won't match what the ECM is seeing for correct timing to fire the spark plugs at the correct time.  So you will see ignition power but it is not correct timing. 

 

This is discussed in the TS manual on 1-8.  This is discussing this MAG CAL for the CIS but it is the same requirement if you still have a real magneto on the engine.  I don't know which you  have.

 

Best Regards,

Al Hunt

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Re: Am working on G3612 with ESS panel that am unable to star...

Kayode,

I am out of town this week, teaching a G3500b class.  I have been trying to furnish some answers from my motel.

 

To answer your quesion, the SHUT DN message is normal when the engine shuts down.  If you have a copy of SENR6510-05, the G3600 ESS Troubleshooting Manual, some text about this message is found on page 1-4 of this manual.

 

I wonder if there is an input to the SCM either on terminals 13 or 15.  A connection to batt neg to either one of these terminals would cause the SCM to communicate the SHUT DN signla to the ECM.  Normally the SHUT DN message will go away when the engine is started, as indicate in the TS manual text.

 

Be careful about how much air pressure you apply to the starters.  250 psi sound like it may be a bit too much.  Most of the air starters are usually working with about 150-160 psi air pressure.

 

I don't know that I can give you a good time to talk on the phone until sometime next week; my schedule is quite hectic right now.  I will certainly work with you still using this email or you can use my other email; hunt_al@cat.com.

 

Best Regards,

Al Hunt

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Re: Am working on G3612 with ESS panel that am unable to star...

i really appreciate your prompt response towards my mail. I forgot to include the need valve adjustment on my previous mail. I gave it 4 turns and it still not start. i tried 2 turns as well still not start. Truly, am just working on G3600 with the ESS panel for the first time. On the ECM, there is a display where it shows the BTU value, PC CAL, fault code and SHUT DN. I will like to know also, is the SHUT DN display on the ECM normal?

 

Also on the cranking speed, i just worked on 3616 diesel with the same air line diameter and it crank the engine to start (i mean the diesel engine). Above all the customer said, the gen-set was working with the line where they purchase it. The cranking pressure was 30bar from the air tank and i use  250psi to the pneumatic motors.

 

Finally, i wont mind talking to you on phone verbally for troubleshooting guide if you can send me your number or mail address.. I work for CAT dealer here in Nigeria. My name is Kayode.