I am trying to understand the functions each of the contacts between the ATS and Generator labeled "0", "194", "23", "N1", "N2", and "T1". What function does each perform and what electrical values...

James,

Which unit are you dealing with 12k 15k 17k 20k 22k 24k?

You have a ats. automatic transfer switch?

It is possibly a transfer switch issue, not the generator control board. Have an electrican kill utility power, let it start and run, then disconnect the sensing wires in the ATS. If it stops problem is ATS

Do a prime factorization of the two numbers. Use condensed (power) notation for each prime factor.
Example
N1=(2^5)*(3^4)*(7^2)(11^3)
N2=(2^4)*(5^6)*(11)
2 is a factor in N1 and N2, the smallest power of 2 is 4, thus 2^4 is common to N1, and N1. You could write 2^5=2*2^4
11 is a factor in N1, and N2, the smallest exponent of 11 is 1, thus 11 is a common factor of N1 and N2.
Highest common factor of N1 and N2 is (2^4)*11

Check the N1 N2 fuses in transfer switch one or both of them are probably blown. N1 N2 fuses have the yellow wires on them if they are blown the generator thinks there is no utility power and will start There needs to be 220 volt on them .

try changing the subnet on N1 to 255.255.254.0 or 255.255.248.0

The generators control board senses lost utility (N1 & N2) and after a time delay kicks in the backup. The board sends 12 v to the transfer relay thru wire 194 then back to terminal 23. This is held open till the startup timer times out and only after the warmup does wire 23 close to ground. This energizes the transfer relay, contacts close and E1 & E2 can now conduct generator produced electric to the transfer relay contacts, limit switch (XB1), Wire B, and a bridge rectifier.

simply follow this tutorial

http://www.osix.net/modules/article/?id=53

just 4. I install generac switches and generators

That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.

You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.

Regards,
Carl

just got a tech bulletin from pioneer in my bulk mail(almost trashed it). they said its a recall on all avicn1 and 2's. the ribbon wire going from unit to screen fails after many cycles. they are issuing free repair.

Notice: Upgraded Flex-Cable for Flip Screen in Navigation Models AVIC-N1 and AVIC-N2 To: January 3, 2007 Dear Valued Customer: Re: Upgraded Flex-Cable for Flip Screen in Navigation Models AVIC-N1 and AVIC-N2 We would like to inform you of a potential service issue with Pioneer's AVIC-N1 and AVIC-N2, inform you of our plans to resolve this service issue, and ask for your help in notifying consumers. If a consumer is not experiencing any issues currently, there is no need for the consumer to take immediate action because the one-time fix to resolve the service issue will be available if an AVIC-N1 and AVIC-N2 later experiences the service issue. _Importantly, the service issue does not pose any health or safety risk._ Pioneer is aware of a potential issue with the flex-cable powering the flip screen to the AVIC-N1 and the AVIC-N2. After a number of power cycles, the cable has been observed to fail and cause the unit to malfunction (symptoms may include, but are not limited to, the flip-screen becoming blank) -- flex-cable failure can only be confirmed by Pioneer; standard service charges may apply for service issues not related to the flex-cable upgrade. This issue may affect almost all AVIC-N1 units and AVIC-N2 units. Please contact Pioneer at the number listed below if you have a question about whether your AVIC-N1 or AVIC-N2 unit is affected by this issue, or if a specific malfunction affecting your AVCI-N1 or AVIC-N2 is related to this issue. To address this issue, Pioneer is providing a one-time cable upgrade to consumers for their AVIC-N1 and AVIC-N2 at no charge to consumers for parts and labor. Pioneer will offer the free upgrade either upon request or automatically if an affected unit is serviced for another reason. Pioneer will exclusively perform the free cable upgrade for all units (i.e., no other service facility should perform the cable upgrade). If you own an AVIC-N1 or AVIC-N2 and you are experiencing the service issue, please contact Pioneer Customer Service toll free at 800-421-1603 to arrange for the cable upgrade. Pioneer service representatives are available Monday through Friday, 9:00 a.m. to 7:30 p.m. (Eastern Time). Customers who have paid for the cable upgrade are eligible for reimbursement of certain service costs if sufficient proof of service can be provided -- please contact Pioneer at the above-listed phone number for more information regarding reimbursement rules. Customers can also review FAQs regarding this service issue. Click here to view the FAQs. We sincerely apologize for any inconvenience this service issue may cause you, and we thank you for your cooperation and continued support of Pioneer. Sincerely, Pioneer Electronics (USA) Inc. *Pioneer Electronics (USA) Inc., 2265 East 220th Street, Long Beach, CA 90810* ------------------------------------------------------------------------
___________________________________________
owner of
Motion Marine & Car Audio
the florida keys