Re: 50 hz timer motor

Sam Goldwasser wrote: 
etphonehm@xxxxxxxxx writes:


On page 4 of the English schematics I sent you which details the timer
sequence, at the bottom left, there are some faded word that says 1T/60
sec, i.e. 1 turn/min.  Would that answer your question in regards to
whether the cam moves in 1 minute increments?



That would seem to be pretty definitive unless something external to the
timer (i.e., in the module) is supposed to hold up the timer for 45 seconds
each minute.

I still say if you can find someone who can test a timer by itself by just
powering the motor and seeing how long between clicks, that would clinch it.


Furthermore, I think that each square there represents 5 minutes.  If I
added up all the squares for the first program which includes the
pre-wash, it'll amount to 135 minutes which is very close to the user
manual that indicates 2 hours 35 minutes, considering the water-fill
time, repeated rinse and drain.  I assume the 135 minutes would be the
actual drum-turning time.



I agree on that.  Even a no-dirt load needs to be drained properly.


On that type of timer, the timer motor is usually wired through a pair of the timers own contacts so that the timer pauses during the first part of the fill - and on some machines, the initial part of the water heating. The pressostat (water level switch) and/or the thermostats are responsible for re applying power to the timer motor to move it on past the pause state. The water is heated to a given temperature until the thermostat closes, then the rest of the heat cycle is a timed event. The drain cycles are just a timed event once the pressure switch opens. If the water hasnt gone when the timer comes to move on, most machines will stop. I am of course relating to UK machines here, I imagine a machine for the French market will be the same.

I think neither of these things have any relevance to the machines problem.

Ron
--
Lune Valley Audio
Public address system
Hire, Sales, Repairs
www.lunevalleyaudio.com
.

Relevant Pages

  • Re: do pop up boxes stop all events?
    ... You can "get out of there" in just a few microseconds and the next event will still not occur on the next 10 millisecond interval on most machines. ... The fact is that the underlying sytem which triggers the VB Timer does not really get a very high priority and the OS doesn't really consider such timings to be important. ... Private Declare Function timeBeginPeriod _ ... Private Sub Form_Unload ...
    (microsoft.public.vb.general.discussion)
  • Re: [patch 6/6] x86: add c1e aware idle function
    ... This excludes those machines from high ... To work nicely with C1E enabled machines we use a separate idle ... This allows us to do timer broadcasting ... Does the boot CPU ...
    (Linux-Kernel)
  • Re: 50 hz timer motor
    ... > On that type of timer, the timer motor is usually wired through a pair ... > part of the fill - and on some machines, the initial part of the water ... The pressostat (water level switch) and/or the thermostats are ... would a notch in a cotton ...
    (sci.electronics.repair)
  • Re: 50 hz timer motor
    ... on the Brandt BR1000) where the cycling motor modules, ... On that type of timer, the timer motor is usually wired through a ... > part of the fill - and on some machines, the initial part of the water ... The pressostat (water level switch) and/or the thermostats are ...
    (sci.electronics.repair)
  • Re: regression introduced by - timers: fix itimer/many thread hang
    ... The current code is utterly broken on large machines too, ... I basically think the whole process wide itimer stuff is broken by ... What is worse, we can't just limit the granularity of itimers, because ... Implementations may place limitations on the granularity of timer values. ...
    (Linux-Kernel)