User guide
Xenus Plus User Guide    Operational Theory 
Copley Controls  53 
2.13: Inputs XEL/XPL/XML 
The Xenus Plus XEL and XPL drives have 15 digital inputs and 3 analog inputs.  
2.13.1: Digital Inputs 
The Xenus Plus XEL and XPL drives feature 14 programmable digital inputs. Non-isolated inputs 
IN1-IN6 are connected on J8. Opto-isolated IN7-IN14 are connected on J9. IN3-IN6 are single 
ended or differential programmable inputs. 
The IN15 digital input on J10 is for an encoder fault signal on. For a list of input functions, see the 
CME 2 User Guide. 
Input Filters 
Two types of input RC filters are used: GP (general-purpose) and HS (high-speed). Input reference 
functions such as Pulse and Direction, Pulse Up/Pulse Down, and Quadrature A/B are wired to 
inputs that have the HS filters, and inputs with the GP filters are used for general-purpose logic 
functions, limit switches, and the motor temperature sensor. 
Debounce Time 
To prevent undesired multiple triggering caused by switch bounce upon switch closures, each 
input can be programmed with a debounce time. The programmed time specifies how long an 
input must remain stable at a new state before the drive recognizes the state. The debounce time 
is ignored if the input is used as a digital command input. 
Configure for Pull Up/Pull Down Resistors by Groups 
Pre-defined groups of inputs can be programmed to have either an internal pull up or pull down 
resistor. See J8 Pin Description (p. 99) for groupings. 
2.13.2: Analog Inputs 
Two programmable differential analog inputs, AIN1 and AIN2, are connected on J8 with ±10 Vdc 
range. As a reference input [AIN1] can take position/velocity/torque commands from a controller. 
The second input [AIN2] is programmable for other functions. The ratio of drive output current or 
velocity vs. reference input voltage is programmable. 
Analog input [AIN3] Motemp is for use with a motor over temperature switch or sensor connected 
on J10. 










