smoke unit/err cruise commander

Answers embedded.

@William Church posted:

1. On the smoke unit connector J1 pin 1 (marked with yellow on attachment) I'm assuming that this is track power in.          Am I correct?

2. Can I connect J1, pin1 to  connection 7,  (Smoke Unit) on the CC board.  Is the circuit sufficient?

Usually the two outside pins are connected together are the track power.  You would indeed connect those to the Feature output of the CC.

3. I noticed that the smoke unit is chaise ground.  Can I use chaise ground or should isolate the ground by using connection      5, Common on the CC board?

What is chaise ground?  The center pin is frame ground, it should be wired to a good ground.

4. On the smoke unit connector J1, pin 2,3 (underlined in blue on attachment) I'm assuming is an on/off circuit for the          fan motor. If this circuit is closed the fan runs, if open it stops. Am I correct?

No, pin 2 is frame ground and pin 3 is the heater circuit.

Thanks in advanced.

William Church

Thanks GunrunnerJohn, you just saved the life of another electronic circuit board!

@gunrunnerjohn posted:

Answers embedded.

John,

I have not been able to get my ERR Cruise Commander to run my smoke unit. The instructions are clear and specify to not ground the smoke unit ground to the ERR common. I connected the ground to the frame (as you indicate above) and the power wire to the feature connection and I get nothing. I am getting 16 vdc plus across the ERR feature and common connections which is good but I have no continuity across the ERR common and the frame. I believe I should. I add a jumper across the frame to the ERR chassis and I still don't get continuity to the ERR common and no smoke. Seems to me it's a grounding issue. What am I missing? Should the ERR common be grounded to the frame? Thanks.

Frank

Frank, clearly the ground on the smoke unit has to make it to the same connection as the outside tracks and the ground into the Cruise Commander or you won't get anything.  The ground on the track power connections of the 4-pin connector of the Cruise Commander are the return point for the smoke unit.

@gunrunnerjohn posted:

Frank, clearly the ground on the smoke unit has to make it to the same connection as the outside tracks and the ground into the Cruise Commander or you won't get anything.  The ground on the track power connections of the 4-pin connector of the Cruise Commander are the return point for the smoke unit.

John,

Agreed. I am just being cautious as the instructions say to not return the smoke unit ground to the ERR common. I have since learned that the EER common and the AC or track common are not one in the same. We are good now. Thanks for all your insight and help. Much appreciated.

Frank