ELECTRICAL
237
ELECTRICAL
(b)The normally closed-type
When a normally closed relay as illustrated
here is checked, there should be continuity
between terminals 30 and 87 when the relay is
de-energized. There should be no continuity
between terminals 30 and 87 when battery
voltage and ground are applied to terminals 85
and 86. The relay condition is determined by
this check.
NOTE:
Check the relay in both conditions, i.e.
Energized and not energized.
(c)The NO NC (Changeover) type
It has 2 relay out pins. One will be in contact in
the changeover state as in NC relay. When it is
energized it brakes the NC contact and
connect the other output pins.




