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Generator control fault

CcPW

Member
Joined
Nov 20, 2023
Messages
5
Location
Bishop ,CA
SDMO MICS Telys control Fault high alt. HZ/ Fault emergency stop 100 KW CAT/ John Deere engine diesel
Starts ok runs only 30-45 secs, reset, each time same cycle of events.
jumped pass stop switch, same cycle of events.
Tread stated alternator to high per preset value, pull alternator and check ?
Check rpm to match HZ, 1900 rpm mech governor ?
Not making any sense !
 

MarshallPowerGen

Senior Member
Joined
Nov 26, 2017
Messages
483
Location
Northwestern USA
Occupation
Generator Technician & Equipment Mechanic
That was a lot to try and decipher.

If you're running at actual 1900rpm, you're getting an over speed shutdown and need to bring it down to 1800. No idea what engine you're running since there is no CAT/Deere combos, so can't give any advice on how to adjust. Pictures of engine or tags?
 

Birken Vogt

Charter Member
Joined
Nov 30, 2003
Messages
5,395
Location
Grass Valley, Ca
1900 RPM is not too high on a mechanical governor set. That is only 63 Hz. Maybe turn it down a tad but it should be OK.

SDMO is under Kohler. Contact a Kohler dealer for issues related to the SDMO controls.
 

CcPW

Member
Joined
Nov 20, 2023
Messages
5
Location
Bishop ,CA
JD 6068HF 150 6.8 L Holt Cat Gen Set SDMO MIC telys 1 control rpm 1938 when running
Gen Set plate calls for 1800 rpm/ 60 HZ SDMO Gen Set Mid America Engine type JS150SA
Is the rpm a programed controler problem or gen. injection setting ?
 

Birken Vogt

Charter Member
Joined
Nov 30, 2003
Messages
5,395
Location
Grass Valley, Ca
You tell us, does it have electronic engine speed control or is it all mechanical? I can't see it from my house.

If it is mechanical, you set it to 1800 RPM at 100% load and hope it does not rise too much at no load. 1900 should be about max.

You need to load test it and you are going to need to probably rent a load bank for that.
 
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