Rockwell Automation 1336 8A-48A Fiber Industry - Manual (Page 26)

2–18 Installation/Wiring
The user inputs are connected to the option board through TB3 (see
Figure 2.1 for location). The L4, L5 and L6 options each have nine
control inputs. The function of each input must be selected through
programming as explained later in this section. The L4E, L5E and
L6E options are similar to L4, L5 and L6 with the addition of
encoder feedback inputs. Refer to Figure 2.6 (a, b & c) for input
impedance values.