Atlas Copco Elektronikon Mk5 Wiring Diagram Full [2021] -

The Atlas Copco Elektronikon Mk5 is a sophisticated industrial controller used across various compressor models, including the GA and Scroll series. Due to the variety of machine configurations (fixed speed, VSD, integrated dryers), there is no single "universal" diagram; instead, the system utilizes a modular electrical architecture. Core Wiring Components

Typical Mk5 electrical diagrams are organized into functional sheets to simplify troubleshooting and installation:

Main Power Circuit: Details the 3-phase supply, main motor (M1) specifications, and primary fuses (typically gL/gG or UL Class CC).

Control Supply: Shows the transformer and protection for the control voltage (e.g., 230V for IEC or 115V for CSA/UL standards).

Regulator (Mk5 Graphic/Touch): Maps the physical pins of the controller unit, including power input and communication ports. Input/Output Connections: Specific terminal maps for: atlas copco elektronikon mk5 wiring diagram full

Analog/Digital Inputs: Pressure sensors, temperature probes (ADT), and emergency stops.

Relay Outputs: Loading/unloading solenoids, motor starters, and general alarms. Communication & Networking

The Mk5 supports advanced networking via a CAN-based internal network. For external integration, a Gateway Module is often used:

Modbus/Profibus: Requires a specific bridge module that acts as a proxy for the compressors on the network. The Atlas Copco Elektronikon Mk5 is a sophisticated

Remote Control: Terminals for remote start/stop and load/unload are typically located on the customer terminal strip. Critical Safety & Technical References Technical Detail Control Logic Regulates pressure bands and motor speed (VSD). Scribd - Elektronikon Mk5 Manual Wiring Guide iPCB connection drawings for various compressor models. Scribd - Wiring Guide Service Diagram Detailed layout for 75kW VSD systems. Scribd - Service Diagram Gateway Setup Instructions for Modbus and Profibus configuration. Emerson Exchange 365 - Gateway Manual Atlas Copco GA90-315 Electrical Diagram | PDF - Scribd

Warning on Third-Party Sites

Sites offering a "universal" MK5 wiring diagram are usually incorrect. The pinout on a 2005 MK5 (with a green screen) differs from the 2015 MK5 (with a white backlight). Always get the machine-specific version.

Group B: Analog Inputs (Sensors)

This is where the pressure and temperature sensors connect. The Mk5 uses specific resistance ranges.

Step 1 – Identify the Power Section

Locate the main power flow from the terminal block (X1) through the main isolator (Q1) to the compressor motor contactor (K1). The overload relay (F11) is wired in series with K1’s coil. Group B: Analog Inputs (Sensors) This is where

Part 1: Understanding the Atlas Copco Elektronikon MK5 System

Before interpreting the wiring diagram, you must understand the MK5 architecture. The MK5 (Mark 5) controller consists of three primary hardware variants depending on the compressor model (GA, GX, ZR, ZT, etc.):

  1. The MK5 Display Unit: The user interface with a keypad and LCD screen.
  2. The Base Unit (CPU): The main processor located inside the electrical cabinet.
  3. I/O Modules (Expansion Cards): Additional modules (e.g., IO 8, IO 4, IO 4R) that add inputs, outputs, and relays.

A full wiring diagram will show all three layers, including:

2.1 Terminal Block Designations (X1, X2, X3...)

Each physical terminal inside the cabinet is assigned a code. For example:

A full diagram lists every terminal down to the pin level on the controller’s rear connectors (CON1, CON2, CON3, etc.).

2.6 Earth and Shielding Connections

Improper grounding is a common cause of MK5 communication errors. A full diagram includes all earth bonding points and shield terminations (often at a dedicated ground bar or via capacitor to chassis).

GA 90-160 (Variable Speed Drive – VSD)

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