Lenze E94P PositionServo with MVOB - Manual (Page 33)

S94H201E_13426446_EN L 31
Interface
4.2 Digital I/O Details
4.2.1 Step & Direction/Master Encoder Inputs (P3, pins 1-4)
A master encoder with quadrature outputs or a step and direction pair of signals can be connected to the
PositionServo to control position in the external positioning operating mode. 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 Diagram for Step & Direction Signals
CCW CW
A
B
S905
Timing Diagram 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 & 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.