Z21& Tam Valley

[mikeg]

Has anyone had experience of using a Tam Valley booster with the Z21 system? I am having power problems with my point motors (cobalts) some are only working if I turn off the track power, I have separate supply bus for track and accessories both powered from the Z21 output separately through switches, I am thinking of using a Tam Valley booster for the accessories as even with all locos removed from the track the points only work with the track power switched off!

 I have checked the wiring and voltage supply to the points and it appears to be OKAY.

 

regards Mike 

[jpendle]

Have you looked to see how much current the Z21 is drawing? If it isn't 2.5A or more then a booster shouldn't be needed.

You might also want to try turning Railcom off on the Z21, this is done using the maintenance app on a PC.

 

Regards,

 

John P

[WIMorrison]

The correct way for separate track and accessory busses means that the track is fed from the booster and the accessories from the Z21

[mikeg]

Thanks for your replies, John I have a rampmeter and that shows that the basic layout is drawing 0.29amps. I have 10 cobalt IP point motors and 6 work normally the other 4 need the track power supply turned off to work! with the track power off the rampmeter shows 0.02amps which I think is the leds on the 10 frog ducers as only they are in circuit, so theoretically there’s plenty of power.

 I was going to try the Tam Valley booster as it’s not expensive and I will be able to wire the layout as Iain has suggested.

 

Hope this has explained my problem better.

 

regards Mike