In most process, speed of motor controlled by control
system with a reference pot . Now if i start & it becomes
uncontrollable, i.e.gets directly start & stop after certain
time.Then which reasons can make such problem? can motor
may be faulty?how?

Answer Posted / manraj meena

no. this problem is not related to motor,it may be due to
pot get faulty (variable point).thats why it run only
constant speed.

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