Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manual do Utilizador descarregar pdf (Página 183)

Publication 1760-UM002B-EN-P - March 2005

Wiring with Pico GFX-70 4-73

10. actual value equal to zero

11. out of value range

• Range A:

– The counter has the value zero.

– The contacts C..ZE (actual value equal to zero) and C..FB (lower set

point value undershot) are active.

– The counter receives counter values and increases the actual value.

– C..ZE drops out as well as C..FB and also when the lower set point

value is reached.

• Range B:

– The counter counts upwards and reaches the upper set point value.

The “upper set point value reached” contact C..OF becomes active.

• Range C:

– The coil C..SE is briefly actuated and the actual value is set to the

preset actual value. The contacts go to the respective position.

• Range D:

– The counting direction coil C..D_ is actuated. If counting pulses are

present, downward count is initiated.

– If the lower set point value is undershot, the contact C..FB becomes

active.

• Range E:

– The reset coil C..RE is activated. The actual value is set to zero.

– The contact C..ZE is active.

• Range F:

– The actual value goes outside the value range of the counter.

– The contacts become active according to the direction of the values

(positive or negative).

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