Interface, 4 digital inputs – Lenze E94P PositionServo with MVOB User Manual

Page 35

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S94H201E_13426446_EN

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33

Interface

4.2.4

Digital Inputs

IN_Ax, IN_Bx, IN_Cx (P3.26-30, P3.31-35, P3.36-40)

The PositionServo drive has 12 optically isolated inputs. These inputs are compatible with a 5 - 24V voltage
source. No additional series resistors are needed for circuit operation. The 12 inputs are segmented into
three groups of 4, Inputs A1 - A4, Inputs B1 - B4, and Inputs C1 - C4. Each group, (A, B and C) have their
own corresponding shared COM terminal, (ACOM, BCOM and CCOM). Each group or bank can be wired as
sinking or sourcing. Refer to the PNP Sourcing and NPN Sinking wiring examples herein. All inputs have a
separate software adjustable de-bounce time. Some of the inputs can be set up as Special Purpose Inputs.
For example, inputs A1 and A2 can be configured as hardware limit switch inputs, input A3 is always set up
as an Enable input and input C3 can be used as a registration input. Refer to the PositionServo Programming
Manual for more detail.

For the registration input (C3), the registration time is 3µs for an encoder and 7µs for a resolver.

PNP Sourcing

Digital inputs circuit.

Gnd

+24V

27

IN_A1

26

28

IN_A2

IN_A_COM

2.4 k

2.4 k

mb103

NPN Sinking

Digital inputs circuit.

Gnd

+24V

27

IN_A1

26

28

IN_A2

IN_A_COM

2.4 k

2.4 k

mb104

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