Chapter 2 Hardware Specifications and W iring Sourcing Direct current Current flows from the common terminal S/S. Equivalent circuit of the input circuit I/O X0.8 Internal circuit S/S Wiring differential input terminals For example, the direct-current signals ranging in voltage from 5 V to 24 V can pass through the high-speed input terminals X0.8+~X0.15+, and X0.8-~X0.15- on AH20MC-5A. The frequency of input signals can be up to 200 kHz. These high-speed input terminals are connected to a differential (two-wire) line driver. The wiring of differential input terminals is shown below. (The wiring is used for high speed and noise):
Encoder output high-speed input AH20MC-5A 2-25 A A A B B B + X0 - X0 + X0 - X0 .8+ .8- .9+ .9- X0 .8- A - X0 .9- B -