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Voltage Runaway Error

PostPosted: Mon Sep 27, 2010 5:10 pm
by Coulomb
September 27, 2010

When B+ is first connected to the NS2, the red LED is active for a few seconds. Then it will go out and the green LED will signal that the ignition switch input is inactive- if it is in fact inactive.

Sometime after that the red LED will indicate a voltage runaway error. This error code goes away and stays away when the ignition input is activated.
As long as B+ stays connected the error code will then only show up again if in fact there is an actual voltage runaway.

The source of this "confusion factor" is related to how flash memory in new processors are now initialized. It does not affect operation after the first actuation of the ignition switch.

Re: Voltage Runaway Error

PostPosted: Sat Jun 04, 2011 4:21 am
by gfab
In my case the switch on/off DONT' put away the red light of voltage runaway....THE RED LIGHT CONTINUE to bright and....I cant' use the alternator !

Re: Voltage Runaway Error

PostPosted: Tue Jun 07, 2011 7:02 am
by gfab
I don't find the solution at my problem....about the switch on/off it is not changing the siyuation of error "voltage runaway".....

Re: Voltage Runaway Error

PostPosted: Tue Jun 07, 2011 10:20 pm
by Coulomb
Are you using a replacement regulator?

Re: Voltage Runaway Error

PostPosted: Tue Oct 23, 2012 2:04 am
by Verdi
Hello,

My problem is: when b+ is first connected the red LED is active for few sec, than it will start flash (6 sec + 3 sec - voltage runaway). The alarm stops when pin 5 (positive from key) is connected. Than If I disconnect the ignition input (pin 5 ) my NS2 works properly the same.
The problem is that all times i have to switch the engine key to have the parallel for charging the second battery from solar panel and electrical battery charger, otherwise NS2 goes into alarm!

I'm sure ther's no problem in my electrical connection, I'm also try to connect NS2 to a stabilized power supply (pin 1-4 positive, pin 3-8 negative) with the same result!

is that normal ? the precedence NS2 I have, worked immediately without ignition key signal .....

is there any mode to have the same result as the old NS2 board ?

Many thanks.

Re: Voltage Runaway Error

PostPosted: Wed Oct 24, 2012 5:29 pm
by Coulomb
The parallel solenoid works without the ignition input. What voltage do you have when it is off. It may be going into alarm because the solar panels are charging too high.

Re: Voltage Runaway Error

PostPosted: Thu Oct 25, 2012 2:19 pm
by Verdi
I've just tried....It goes into alarm also with 11,80 V... The NS2 board is now connected to a variable stabilized power supply... PIN 1-3 positive, 3-8 negative. The problem is that my reseller sent me a second board, but also the second new board goes into alarm!!
There are 4 connection e 1 type of voltage..is not complicated !!
???

Re: Voltage Runaway Error

PostPosted: Thu Oct 25, 2012 4:11 pm
by Coulomb
Did you observe the polarity for the external alarm? It's different than the original Next Step.

Re: Voltage Runaway Error

PostPosted: Fri Oct 26, 2012 2:14 am
by Verdi
I have No external alarm...only the onboard LED !

Re: Voltage Runaway Error

PostPosted: Fri Oct 26, 2012 10:19 am
by Coulomb
The parallel solenoid output is positive not negative like the original Next Step Regulator. Is that wired accordingly?