Deck 11: Programming Timers

Question 1

When a timer uses the format used by the Allen-Bradley timer, the preset time can be programmed with any value from 0 to 16,000.

Answer 1

False

Question 2

When circuit requirements demand more time than is available from a single timer, two or more timers can be programmed together.

Answer 2

True

Question 3

Retentive timers (RTO) can be programmed to replace ____________________ timers.

Answer 3

motor-driven,motor driven

Question 4

The retentive timer lets the timer START and STOP without resetting the accumulated value to 0.

Question 5

What format is used by the Allen-Bradley timer?

Question 6

What happens when the timer rung goes false in an RTO?

Question 7

What is normal for contacts?

Question 8

The basic pneumatic timing relay is designed so that additional instantaneous contacts may be added.

Question 9

Describe the similarities and differences of the Allen-Bradley Logix5000 Timer and the Allen-Bradley timers discussed in the text.

Question 10

In an RTO, bit 13 is known as the ____________________ bit.

Question 11

Programming two or more timers together to extend the timing range is called ____________________.

Question 12

What happens as long as the rung remains true after the RTO instruction begins timing in an RTO?

Question 13

A common problem in programs that have ____________________ timers is that the timer is not accumulating time, even though the timer rung is true.

Question 14

With the ON delay timer, the delay in contact operation begins before the timer coil has been energized, or turned ON.

Question 15

To avoid confusion when reading electrical drawings with OFF delay contacts, it must be remembered that normal refers to the coil ____________________ it has been deenergized.