Kt 3 lcd meter setting help wanted.

Adwb

Pedelecer
Dec 2, 2022
31
2
I am utterly confused by this c4 settings options wording.
I am trying the “imitation” torque setting P4 =1 but not sure if that’s the best choice.
C4 value P4=0 # 0 zero = startup throttle
P4=1 # 0 Non-zero startup throttle
WHAT IS ZERO START UP please?
setting 3 and 5 in my book has retain printed what does that mean? Depending which online version of the kt3 manual I look at , the C4 parameter choices seem to vary.
I live in the U.K. and do not want ,if stopped, trouble , so I’m looking for the best solution to the throttle rules and the fact that to start my trike by pedal power only is a non starter. It takes, even with the C5 setting on = 10 and c14 = 3 , about half a turn with a 10 magnet pas sensor to get the motor running.
Ideally I should like to get a quick boost up to the 4 mph throttle only speed, giving me time to start pedalling and if in pas level 5 will get then full throttle with the throttle lever on full if I stop pedalling the throttle revers to the max 4 mph setting.
I hope this makes some kind of sense to you
i’m sure give the choices between using P4 setting of 1 or 0 and the C 4 option this should achievable or nearly achievable ?
thank you for reading this post.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
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P4 /1 provides current control , each PAS level giving a max level of current. Speed is max in each PAS level.
P4/0 provides speed control so max current in all levels with varying max speed in each PAS level.

With P4/1 one gets 13%/20%/33%/50% & 100% current via the five PAS levels.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
9,471
4,219
Telford
Torque simulation is current control, where each selected level gives a different current (power). The alternative setting is speed control, where each selected level gives maximum current with a different speed limit, which is horrible, so that's an easy setting.

Zero start means that the throttle works independently, which is illegal. Non-zero start means that it will only work while pedalling. Therefore P4=1 is the only allowed setting. Most of the C4 settings are a waste of time, except C4=3, which gives independent start assist up to 4 mph, which is legal, plus it becomes a level 5 boost button while pedalling above 4 mph, which is very useful.

Something is not right if it takes so long for the motor to start. Normally, KT controllers haave a very fast response time. Try setting those things back to defaults.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
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For a speed control device aka a thumb or twist throttle then to be legal set P4/1 & C4/3 this allows legal throttle use under pedal first. This means no peddling no inexpedient speed device.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
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All the KT's I have used have always given me PAS rotation with less then 1/4 movement and to be more exact nearer 1/8 rotation.
One can also get 4mph via walk assist , depress the down button in one of the PAS levels. Use P4/1 & C4/3 setting.
To have legal throttle use one will have to at least ghost pedal.

If one has C15 make sur eit is set to 06 for walk assist.
 
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Nealh

Esteemed Pedelecer
Aug 7, 2014
21,760
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Check your PAS disc set up , make sure the magnet disc is very close to the sensor head and the magnets are 1mm or less gap to the sensor.
Also check your C1 setting , try all three lower value options 00/01 & 02.
 

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