Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manuale Utente Scaricare il pdf (Pagina 146)

Publication 1760-UM002B-EN-P - March 2005

4-36 Wiring with Pico GFX-70

Coil Negation (Inverse Contactor Function) ]

The output signal is simply an inversion of the input signal; the relay operates

like a contactor with contacts that have been negated. If the coil is triggered

with the 1 state, the coil switches its make contacts to the 0 state.

Figure 4.22 Signal diagram of inverse contactor function

Rising Edge Evaluation (Cycle Pulse) ,

If the coil is only meant to switch on a rising edge, this function will be

applied. With a change in the coil state from 0 to 1, the coil switches its make

contacts to the 1 state for one cycle.

Figure 4.23 Signal diagram of cycle pulse with rising edge

Falling Edge Evaluation (Cycle Pulse)

If the coil is only meant to switch on a falling edge, this function will be

applied. With a change in the coil state from 1 to 0, the coil switches its make

contacts to the 1 state for one cycle.

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