Unitronics V200-18-E2B Quick Start Manual page 4

V 2 0 0 - 1 8 - E 2 B 1 0 / 0 6
S n a p - i n I / O M o d u l e
npn (sink) digital input wiring pnp (source) digital input wiring
npn (sink) high-speed counter pnp (source) high-speed counter
Inputs I0, I1, and I2, I3 can be used as shaft encoders as shown below.
npn (sink) shaft encoder wiring pnp (source) shaft encoder wiring
4 Unitronics