JST Posted January 25, 2020 Share Posted January 25, 2020 I have bought one of these and fitted it with a Hornby decoder. The instructions give dire warning not to run the motor at more than 9v. That is fine, and this may be a daft question, but how do I know what voltage the motor is getting? I have given the decoder an address and yes when I wind the controller up the motor runs faster but I have no idea what voltage it is getting. I am using a Hornby Elite with Railmaster Pro. Any ideas gratefully received. Link to post Share on other sites More sharing options...
RMweb Gold BoD Posted January 25, 2020 RMweb Gold Share Posted January 25, 2020 (edited) You could use CV5 to set a lower Maximum voltage, although that depends on you being able to alter CV5 on your particular decoder. However setting that accurately depends on you knowing the track voltage of your Elite. As an aside that sounds like a pretty poor design to me unless the cleaner has high drag and this is an attempt to limit current draw. Edited January 25, 2020 by BoD Link to post Share on other sites More sharing options...
jpendle Posted January 25, 2020 Share Posted January 25, 2020 You probably need to buy a more sophisticated decoder, like a Zimo. CV57 on a Zimo allows you to define the Maximum motor voltage (in volts) independent of the track voltage. For example setting CV57 to 90 would set the max voltage to 9V. I'm sure that there would be similar settings on decoders from ESU, etc. Regards, John P Link to post Share on other sites More sharing options...
Butler Henderson Posted January 25, 2020 Share Posted January 25, 2020 The motor is the cheap Chinese one like Hornby use in their cheaper models. If you intend to use the vacuum function run some sealant around all the joints in the body to the dust compartment as otherwise dust will find it way to the motor. Link to post Share on other sites More sharing options...
JST Posted January 25, 2020 Author Share Posted January 25, 2020 Interesting. Dapol say that any decoder will do so how they expect you to be precise about the voltage remains a mystery - maybe I will email them. In the meantime I set the Elite about half power which I guess is less than the magical 9v. I must say I was gobsmacked by the amount of crud the vacuum picked up in just one tour of the layout. I have some tunnels and hidden sections which are a bit of a pain to access to clean manually which is why I bought this cleaner and so far it's performance has no disappointed. Butler Henderson - I note your comments and will follow your advice. Thanks. Link to post Share on other sites More sharing options...
RAF96 Posted January 25, 2020 Share Posted January 25, 2020 I only ever use the hoover function as the whizzy disk cleaner is a reliable point changer for self derailing. I didn’t see any 9v warning so mine gets max chat for hoovering. Link to post Share on other sites More sharing options...
JST Posted January 26, 2020 Author Share Posted January 26, 2020 RAF96, here is an excerpt from what came with mine. Link to post Share on other sites More sharing options...
RAF96 Posted January 28, 2020 Share Posted January 28, 2020 I will have to dig out the blurb that came with mine and see if I missed that warning or if my old version was different. Link to post Share on other sites More sharing options...
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