Lenze S94P01G Position Servo - Manual (Page 28)

S94P01G
26
Interface
4.2 Digital I/O Details
4.2.1 Step & Direction / Master Encoder Inputs (P3, pins 1-4)
You can connect a master encoder with quadrature outputs or a step and direction
pair of signals to control position in step / direction operating mode (stepper motor
emulation). These inputs are optically isolated from the rest of the drive circuits and from
each other. Both inputs can operate from any voltage source in the range of 5 to 24 VDC
and do not require additional series resistors for normal operation.
CCW CW
DIRECTION
STEP
S904 Timing characteristics for Step And Direction signals
CCW CW
A
B
S905
Timing characteristics for Master Encoder signals
Input type/ output compatibility Insulated, compatible with Single-ended or
differential outputs (5-24 VDC)
Max frequency (per input) 2 MHz
Min pulse width (negative or positive) 500nS
Input impedance
700 Ω (approx)
MA+/STEP+
MB+/DIR+
MA-/STEP-
MB-/DIR-
600 Ω 100 Ω
5.6V
S906
Master encoder/step and direction input circuit
Differential signal inputs are preferred when using Step and Direction. Single ended
inputs can be used but are not recommended. Sinking or sourcing outputs may also be
connected to these inputs. The function of these inputs “Master Encoder” or “Step and
Direction” is software selectable. Use the MotionView set up program to choose the
desirable function.