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This is accomplished by inserting a set of normally closed contacts
in series with the violet wire that connects to the speed adjust pot.
When the contacts are opened, the motor will coast to a stop. This
method is desirable
when
dynamic
braking
is
not
needed, but frequent
starts and stops are
required.
This
method also has the
advantage
of
not
having to switch the
AC power line or the
DC armature
line.
See Figure 11.
Run / Stop Using Normally Closed Contacts
Figure 11. Run / Stop Using Normally
Closed Contacts
Run / Stop Circuits
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