Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manual de usuario descargar pdf (Pagina 256)

Publication 1760-UM002B-EN-P - March 2005

4-146 Wiring with Pico GFX-70

Figure 4.68 Signal diagram of timing relay, off-delayed

(with/without random switching with/without retriggering)

1: trigger coil T..EN

2: stop coil T..ST

3: reset coil T..RE

4: switching contact (make contact) T..Q1

t

s

: setpoint time

• Range A:

The time elapses after the trigger coil is deactivated.

• Range B:

The Stop coil stops the time from elapsing.

• Range C:

The Reset coil resets the relay and the contact. After the Reset coil drops out, the relay

continues to work normally.

• Range D:

The Reset coil resets the relay and the contact when the function block is timing out.

A

B

t

1

+ t

2

= t

s

t

s

C

1

2

4

3

t

s

D

t

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