User Tools

Site Tools


hardware:accesories:acces-opto_34ctrl

 OptoCtrl 3/4

Overview

OptoCtrl 3/4 adapter is a device that opto-isolates Mk3/4 controller inputs from external devices such as rotary incremental encoders.

Its main function is to protect the input circuitry of Mk3/4 controller from any damage that may occur due to improper wiring or power surges at the side of externally connected device.

Also, using this adapter reduces electrical noise influence at controller inputs and makes up for easy connection of rotary incremental encoders

Features and specifications

Adapter is available in two versions: NPN and PNP. Version used, depends on the type of external hardware.

  • Single adapter offers 3 high speed opto-isolated input channels for encoder and one opto isolated channel for estop button.
  • Each input corresponds to its dedicated open collector output
  • Voltage range of optoisolated input signal is 5-24VDC
  • It can be used as a simple voltage level translator where you need to connect devices that function at different voltage levels (e.g. 5V, 12V, 24V)
  • Adapter was designed specifically for Mk3/4 controller but it can be used with any other board that needs opto-isolated inputs.

As an example or reference, we used an Omron E6B2 rotary encoder. This encoder comes in multiple versions which differ on from another based on its output circuit. Diagrams below will serve as an example on how to connect rotary encoder, depending on what type of output circuit encoder uses.

Common types of output circuits of rotary encoder are as such:

  • NPN Open-collector output
  • Voltage output
  • Line driver output
  • PNP Open-collector output
  • Complementary output (aka Push Pull)

Rotary encoder with NPN Open-collector output

Use NPN OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ6C encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input


Rotary encoder with Voltage output

Use NPN OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ3E encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input


Rotary encoder with Line driver output

Use PNP OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ1X encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input

Black/Red wire is encoder’s OUTPUT /A → connect to GND

White/Red wire is encoder’s OUTPUT /B → connect to GND

Orange/Red wire is encoder’s OUTPUT /Z → connect to GND


Rotary encoder with PNP Open-collector output

Use PNP OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ5B encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input


Rotary encoder with Complementary output (aka Push Pull)

Use NPN OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ5G encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input

Use PNP OptoCtrl 3/4 adapter:

Output wires of E6B2 CWZ5B encoder:

Black wire is encoder’s OUTPUT A → connect to ENA input

White wire is encoder’s OUTPUT B → connect to ENB input

Orange wire is encoder’s OUTPUT Z → connect to IDX input

Connection diagrams

Warning!!!

Both, NPN and PNP OptoCtrl 3/4 versions of adapter need to be supplied with +5V from Mk3/4 controller. 5V from Output the output terminal should be used.

Both terminals of the +5V connector, located on the OptoCtrl 3/4 adapter are connected to 5V.

Do not connect GND signal wire to this connector!!!


NPN OptoCtrl Mk3/4 adapter and encoder with NPN Open collector output


NPN OptoCtrl Mk3/4 adapter and encoder with Voltage output


NPN OptoCtrl Mk3/4 adapter and encoder with Complementary output


NPN OptoCtrl Mk3/4 adapter and NPN proximity sensor


NPN OptoCtrl Mk3/4 adapter and Estop button


PNP OptoCtrl Mk3/4 adapter and encoder with Line driver output


PNP OptoCtrl Mk3/4 adapter and encoder with Complementary output


PNP OptoCtrl Mk3/4 adapter and encoder with PNP Open-collector output


PNP OptoCtrl Mk3/4 adapter and PNP proximity sensor


PNP OptoCtrl Mk3/4 adapter and Estop button

Typical application

hardware/accesories/acces-opto_34ctrl.txt · Last modified: 2024/01/29 14:31 by andrej

Page Tools