DEIF Multi line 2 Option X Guide

DEIF Multi line 2 Option X: Complete Technical Guide for Additional Display and Operation Panel

Introduction: Expansion of human-machine interface for generator control

In modern generator control systems, the flexibility and accessibility of human-machine interfaces (HMI) are directly related to operational efficiency and system safety. As a leading global manufacturer of generator set controllers, DEIF's Multi line 2 series controllers provide powerful generator set management capabilities. The Option X (Additional Display and Operation Panel) option further expands the system's operational boundaries, allowing users to monitor and control the system from different locations through multiple display units and operation panels.

This article is based on the official technical document 4189340702e of DEIF, and provides a detailed analysis of the three sub options of Option X - X2, X3, and X4, covering hardware description, wiring method, configuration steps, and functional characteristics. It provides a professional and complete technical reference for generator integrators, electrical engineers, and maintenance personnel.

Chapter 1 Overview of Option X

1.1 Applicable Controller Models

Option X is applicable to the following Multi line 2 series controllers:

Software version required for controller model

AGC-4 Mk II 6.0. x or higher

AGC-4 4.0. x or higher

AGC-3 3.3. x or higher

GPC-3/GPU-3 Hydro 3.0. x or higher

PPM 3.0. x or higher

PPU-3/GPU-3 3.0. x or higher

1.2 Composition of Options

Option X contains three sub options, each corresponding to different expansion requirements:

The option includes the maximum number of component connection methods

X2 DU-2 (display unit) CAN bus up to 3

X3 AOP-1 (operation panel) serial communication up to 1 per DU-2

X4 AOP-2 (operation panel) CAN bus up to 5

1.3 Overview of System Architecture

The core design concept of Option X is to connect to the Multi line 2 controller through a main DU-2, and other display units and operation panels are connected to it through CAN bus or serial communication, forming a distributed operation network. This architecture brings the following advantages:

Multi location operation: The generator set can be operated from different locations (such as control room, machine room, site)

Function extension: Customize status indication and control functions through programmable LEDs and buttons

Flexible wiring: CAN bus supports a maximum length of 200 meters, suitable for large factory layouts

Chapter 2 Safety and Installation Precautions

2.1 General Safety Warning

Dangerous voltage warning

DANGER！

Installing and operating Multi line 2 equipment may involve hazardous currents and voltages. Installation work can only be carried out by authorized personnel, who must understand the relevant risks of working on live electrical equipment. Do not touch any AC measurement input terminals, as it may cause personal injury or death.

2.2 Electrostatic discharge protection

During the installation process, sufficient protective measures must be taken to prevent the terminals from being damaged by electrostatic discharge (ESD). Once the device is installed and connected, these preventive measures are no longer necessary.

2.3 Factory Setting Instructions

The Multi line 2 device comes with default settings at the factory, but these settings may not be applicable to actual generator sets. Before operating the generator set, all setting parameters must be checked.

2.4 Legal Disclaimer

DEIF reserves the right to change the content of this document at any time without prior notice

The English version always includes the latest product information

DEIF is not responsible for the accuracy of the translation. In case of any discrepancies, the English version shall prevail

Unauthorized personnel are not allowed to open Multi line 2 devices, otherwise they will lose their warranty eligibility

Chapter 3 Option X2: Additional Display Unit (DU-2)

3.1 Function Description

Option X2 includes an additional DU-2 display unit connected to the main display unit via the CAN bus. Through multiple DU-2, operators can operate the system from different locations, including:

Start/Stop Generator Set

Alarm Confirmation

Parameter View

Set value access

3.2 Technical specifications

Parameter specifications

The maximum length of CAN bus is 200 meters

Maximum number of connections per ML-2 controller up to 3 DU-2

CAN ID range 0-3 (0 indicates CAN communication disabled)

Terminal resistance 120 Ω, enabled through DIP switch

3.3 Hardware Interface

Rear view interface description

ML-2: Serial interface connected to the display port of the Multi line 2 controller

AOP-1: A dedicated interface for connecting to the AOP-1 operation panel

CAN 1: DC power supply and CAN bus communication (connected to other DU-2 or AOP-2)

CAN 2: CAN bus communication (connected to other DU-2 or AOP-2)

Terminal resistance: DIP switch 1 is used to enable 120 Ω terminal resistance, switch 2 is not used

3.4 Wiring method

DU-2 offers two cable types to choose from, with different color codes:

Cable type 1 wiring

Pin color signal

1 Red/White CAN H

2 brown/white CAN GND

3 Red CAN L

4 brown unused

5 Black/White+5 VDC