Model Railway Forum

A basic error seems to have been missed when checking the track and I have found that when I run a loco over the points I get a short.

Point motors are Cobalt iP Digital and point is Peco Electrofrog. Point motor is connected to a DCC accessory bus so I am using the Cobalt switching function to switch the track power.

I have used my multimeter to check connections etc. All the required modifications to the point have been made and insulated joiners are in the places that they should be. As far as I can see all the wiring is correct, but obviously not, as the points switches the power the wrong way. I think that I need to reverse the wires connected to the switch connections on the point motor, however what I think and what I should do may be entirely different, so before I risk damaging an expensive point motor I thought that it is best to check.

Thank you

it does sound like you've simply reversed the wires...

Yeap. Depending on the Cobalt, If its the Digital ip and your using T3 for the frog feed then reverse wires on T1 and T2.
If you're using a Cobalts built in switch contacts them reverse the wires from the bus pair or DCC console.

I am using the built in switch. In mitigation I have colour coded my power sub districts, light=positive and dark = negative. However logic says that I appear to messed up here in my Goods Yard sub district. Cobalt iP’s aren’t cheap and can be rather difficult to replace, hence the post. Now reassured that simply reversing the switch wires to the track should not produce smoke I will do so tomorrow. Thank you.