NE183-mate Control Panel reset. Why?

[TDub49]

Good morning all. So the moho is back from its habitation check, service and MoT. True to form, the control panel decided it would like a rest a couple of days later - wouldn't turn on and the step wouldn't retract on manual button (although it did when the engine was started).

The first time this happened I got worried and spoke to the dealer who took it in for a day and gave it back to me "fixed". "What was the problem?" said I. "Oh, the control panel just needed resetting" said they. "Oh, OK" said I, "how do I do that? It might happen again when I am in a field miles from any help". "Dunno" said the receptionist but I subsequently found out through the power of the internet that if you pull the main 40amp fuse and count to thirty, everything comes back hunky dory. So no panic this time and reset achieved amidst much clicking from various boxes in the leccy area under the starboard bunk.

Now, my question is this: does anyone know why it is necessary to reset the panel like this (there isn't a reset button on the panel or a magic combination of button presses and incantations)? Whilst it's not a regular occurrence, judging from this and other forums (fora?) it isn't uncommon and although it is easy to rectify, I am curious as to why it needs to be done. I'm guessing that it might be some sort of buffering or capacitor issue but wonder if anyone out there actually knows???

 

[GeoffnDee]

I am sure that if you call Apuljack engineering ,who repair these systems, they would have the correct answer ,they are normally very helpful. 01278 588922

 

[autorouter]

Whilst it's not a regular occurrence, judging from this and other forums (fora?) it isn't uncommon and although it is easy to rectify, I am curious as to why it needs to be done. I'm guessing that it might be some sort of buffering or capacitor issue but wonder if anyone out there actually knows???

I can't tell you the exact details of this particular device, but there is a theory behind all this. Devices like this flip from one state to another due to events, like a timer, button press or voltage too low for example.

Some states are wanted, like the 'Ready' state or the 'Off due to low voltage' state. In those states, everything will be enabled or disabled as laid down in the manual.

However there will be unwanted states, where some things will be enabled or disabled more or less at random. Properly designed, any unwanted state should transition immediately to one of the wanted states. However the designer may not have noticed that unwanted state and made provision to do that.

When everything is off and the device is in its totally unpowered state, it is designed when switched on to follow an initialisation procedure, and go into its 'Ready' state.

So if a device gets into an unwanted state it can't get out of, the only way out is a complete power-down and restart.

 

[TDub49]

I can't tell you the exact details of this particular device, but there is a theory behind all this. Devices like this flip from one state to another due to events, like a timer, button press or voltage too low for example.

Some states are wanted, like the 'Ready' state or the 'Off due to low voltage' state. In those states, everything will be enabled or disabled as laid down in the manual.

However there will be unwanted states, where some things will be enabled or disabled more or less at random. Properly designed, any unwanted state should transition immediately to one of the wanted states. However the designer may not have noticed that unwanted state and made provision to do that.

When everything is off and the device is in its totally unpowered state, it is designed when switched on to follow an initialisation procedure, and go into its 'Ready' state.

So if a device gets into an unwanted state it can't get out of, the only way out is a complete power-down and restart.

Thanks for that - I think I get the gist. Tricky these electrics.