Module 10 - Basic Timer Control

A solid-state timer ______________ be tested out of circuit

cannot

To test a solid-state timer, you need to supply power and observe _______________

contacts

An off-delay timer's contact are in their ________ state while the timer is timing

energized

A(n) ______________ test means looking for loose or broken connections with power removed from the circuit

mechanical

An off-delay timer's contacts are in their _______________ state as soon as the preset time is reached

normal

N.O.T.O. stands for

normally-open-timed-open

A(n) ________________ timer relay causes its contacts to change to their energized states as soon as the coil is energized

off-delay

The two basic operating modes for a time-delay relay are on-delay and _________________

off-delay

A(n) ___________ relay is a type of control relay that moves its contacts to a new state after a predetermined time has elapsed

on-delay

A contact is _____________ if it shows zero resistance in both the energized and de-energized sttae

shorted

Timer relays perform the same function as _______________ relays except they move their contacts to their energized and de-energized states

shorted

Common timing mechanisms include pneumatic timers, _________________ timers, and motor driven timers

solid-state

For each distinct operation that takes place in a time-driven operation, a(n) ______________ must be assigned

timer

The three basic components of a time-delay relay are the coil, the contacts, and the __________ mechanism

timing

To avoid overheating, it is recommend that a motor be ____________________ when it is started.

unloaded