Overspeed!

dorrington · 01-12-2016, 03:32 PM

Hi guys,

yesterday I ran my i180 without gearboxes, it started normall then went into overspeed I think due to lack of inertia.

the machine shut down and now will not restart just unlocated fault in platform.

is there a chance of a latching error that can only be cleared by segway?

and if so could I just send the mainboards and keys and not the whole machine?

any thoughts?......

Thank you in advance

Ian

jamsbondman · 01-14-2016, 01:27 AM

In short yes.

I did basically something similar. I was testing a i167 unit out elevated on top of a 5 gallon bucket and powered it on, the segway itself spun the wheels as i tipped it back and forth. After a few seconds I got one wheel that would speed up and and then the whole thing would do a shut down. After the third test of this it went into a latched mode that required me to take it to a dealer that had the laptop and software to reset it. I don't remember if it gave me a full circle with the wrench or just the full circle or what but once cleared it has never had an issue. And I will never power on a Segway unless its on the ground.

dorrington · 01-14-2016, 06:25 PM

Thank you,....

I was afraid you would say that!.....sounds expensive already...lol

gbrandwood · 01-14-2016, 07:02 PM

Have you tried removing the batteries and also disconnecting the connectors within the control shaft?

I've done this in the past - and sure the Segway sped up to full speed then shutdown - but restarted fine after that. Although, I didn't persistently do it. Hope you don't need to send it in. If you do, you'll 'just' need to send in the control base (no wheels, fenders, control shaft or batteries I think - although check about the batteries).

Good luck!

dorrington · 01-14-2016, 07:09 PM

cheers Gareth,

yeah, did all that. I have a spare set of cu boards that I can use but it means the keys don't match the serial number anymore and I'm a bit anal about things that don't match.....mind you having said that I'm working on a lithium battery conversion to software 12 gen one machines.

got the communication from lashed together cpu to segway platform sorted so my machines will run....I just have sort the overvoltage prevention out and so on....the only thing that doesn't quite work is the battery level meter...but it was never that good anyway....just keep a lookout for smoke coming from the midlands area...!

Philip · 01-15-2016, 01:54 AM

You said in your original post that you are getting an "Unlocated Fault" showing on the Handlebar's User Interface. If this is correct then you don't have a latched PowerBase. All you need to do is resolve/fix what is causing the fault, and then the PT will restart.

In my experience there are three causes of Unlocated Faults: bad batteries, bad CSB, and bad Handlebar. This can include a damp Handlebar that has moisture in it. All you need to do is swap on known-good items until the Segway PT starts up and the Unlocated Fault is gone. Once classic cause is damaged wires on the CSB/Handlebar, just above/below the Black and Yellow connectors. These wires can have an internal break you can't see, and break/make connection as you wiggle them, ride over bumps, etc.

If instead you do have a "PowerBase Fault" code on the User Interface, then your PowerBase is indeed latched, and you will need to visit a Dealer equipped with a Gen 1 Laptop to clear this.

Latch faults are often persistent, and require some component to be replaced. That is, you clear the fault but it comes back as soon as you power it on again.

But if the fault goes away and stays away, it was a transitory fault, and the Segway PT will operate fine, at least for a while (minutes, days, years....). That is, it may or may not come back. It depends what circumstances caused it.

An old, weak (high internal resistance) battery can cause just such a transitory latch fault that you experienced. Once cleared, the PT will operate just fine again, but unless you replace the battery it is destined to happen again. Such a battery typically causes the fault under high load....so this might have been what happened when you span you machine at high speed?

gbrandwood · 01-15-2016, 08:12 AM

Forgive me for being stupid but what do you mean by "latched"?

Gihgehls · 01-15-2016, 05:11 PM

Quote:

Originally Posted by gbrandwood

Forgive me for being stupid but what do you mean by "latched"?

Latched in this case means the error is "sticky" and will not go away unless cleared in a special way. There are similar error codes that your car's computer can throw that are "latched" and can only be cleared by a mechanic.

gbrandwood · 01-15-2016, 05:26 PM

Thanks for the info. Makes sense. I'd never heard that turn of phrase before.

dorrington · 01-16-2016, 10:38 AM

Thanks for all the advice fellas,

Phil, I have swapped verything from working seg's and still the fault remains.

I think it will have a trip to segway uk....If they'll support it...

boo hoo

01-12-2016, 03:32 PM	#1
dorrington Member Join Date: Jan 2016 Location: uk Posts: 127	Overspeed! Hi guys, yesterday I ran my i180 without gearboxes, it started normall then went into overspeed I think due to lack of inertia. the machine shut down and now will not restart just unlocated fault in platform. is there a chance of a latching error that can only be cleared by segway? and if so could I just send the mainboards and keys and not the whole machine? any thoughts?...... Thank you in advance Ian

01-14-2016, 07:02 PM	#4
gbrandwood Advanced Member Join Date: Nov 2004 Location: North west England, UK. Posts: 3,043	Have you tried removing the batteries and also disconnecting the connectors within the control shaft? I've done this in the past - and sure the Segway sped up to full speed then shutdown - but restarted fine after that. Although, I didn't persistently do it. Hope you don't need to send it in. If you do, you'll 'just' need to send in the control base (no wheels, fenders, control shaft or batteries I think - although check about the batteries). Good luck! __________________ Gareth Brandwood The comments posted are made by the fat figners of the individual and do not necessarily represent the views of the brain.

01-15-2016, 01:54 AM	#6
Philip Junior Member Join Date: Sep 2005 Location: Auckland, New Zealand. Posts: 81	You said in your original post that you are getting an "Unlocated Fault" showing on the Handlebar's User Interface. If this is correct then you don't have a latched PowerBase. All you need to do is resolve/fix what is causing the fault, and then the PT will restart. In my experience there are three causes of Unlocated Faults: bad batteries, bad CSB, and bad Handlebar. This can include a damp Handlebar that has moisture in it. All you need to do is swap on known-good items until the Segway PT starts up and the Unlocated Fault is gone. Once classic cause is damaged wires on the CSB/Handlebar, just above/below the Black and Yellow connectors. These wires can have an internal break you can't see, and break/make connection as you wiggle them, ride over bumps, etc. If instead you do have a "PowerBase Fault" code on the User Interface, then your PowerBase is indeed latched, and you will need to visit a Dealer equipped with a Gen 1 Laptop to clear this. Latch faults are often persistent, and require some component to be replaced. That is, you clear the fault but it comes back as soon as you power it on again. But if the fault goes away and stays away, it was a transitory fault, and the Segway PT will operate fine, at least for a while (minutes, days, years....). That is, it may or may not come back. It depends what circumstances caused it. An old, weak (high internal resistance) battery can cause just such a transitory latch fault that you experienced. Once cleared, the PT will operate just fine again, but unless you replace the battery it is destined to happen again. Such a battery typically causes the fault under high load....so this might have been what happened when you span you machine at high speed? __________________ Segway New Zealand / Personal Transport Limited • Read the Segway NZ News blog at To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

01-15-2016, 08:12 AM	#7
gbrandwood Advanced Member Join Date: Nov 2004 Location: North west England, UK. Posts: 3,043	Forgive me for being stupid but what do you mean by "latched"? __________________ Gareth Brandwood The comments posted are made by the fat figners of the individual and do not necessarily represent the views of the brain.

01-15-2016, 05:26 PM	#9
gbrandwood Advanced Member Join Date: Nov 2004 Location: North west England, UK. Posts: 3,043	Thanks for the info. Makes sense. I'd never heard that turn of phrase before. __________________ Gareth Brandwood The comments posted are made by the fat figners of the individual and do not necessarily represent the views of the brain.

01-14-2016, 01:27 AM	#2
jamsbondman Junior Member Join Date: Jun 2009 Location: Mountain House, CA Posts: 16	In short yes. I did basically something similar. I was testing a i167 unit out elevated on top of a 5 gallon bucket and powered it on, the segway itself spun the wheels as i tipped it back and forth. After a few seconds I got one wheel that would speed up and and then the whole thing would do a shut down. After the third test of this it went into a latched mode that required me to take it to a dealer that had the laptop and software to reset it. I don't remember if it gave me a full circle with the wrench or just the full circle or what but once cleared it has never had an issue. And I will never power on a Segway unless its on the ground.

01-14-2016, 06:25 PM	#3
dorrington Member Join Date: Jan 2016 Location: uk Posts: 127	Thank you,.... I was afraid you would say that!.....sounds expensive already...lol

01-14-2016, 07:09 PM	#5
dorrington Member Join Date: Jan 2016 Location: uk Posts: 127	cheers Gareth, yeah, did all that. I have a spare set of cu boards that I can use but it means the keys don't match the serial number anymore and I'm a bit anal about things that don't match.....mind you having said that I'm working on a lithium battery conversion to software 12 gen one machines. got the communication from lashed together cpu to segway platform sorted so my machines will run....I just have sort the overvoltage prevention out and so on....the only thing that doesn't quite work is the battery level meter...but it was never that good anyway....just keep a lookout for smoke coming from the midlands area...!

01-16-2016, 10:38 AM	#10
dorrington Member Join Date: Jan 2016 Location: uk Posts: 127	Thanks for all the advice fellas, Phil, I have swapped verything from working seg's and still the fault remains. I think it will have a trip to segway uk....If they'll support it... boo hoo

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)