DEIF Multi line 2 Controller Installation Guide

3. Environmental conditions

Project Parameters

Working temperature -25 ℃ to+70 ℃ (UL certification: maximum 55 ℃)

Storage temperature -40 ℃ to+70 ℃

Humidity 97% RH (non condensing)

Protection level: host IP20, display screen IP52 (optional L can reach IP54)

4. Vibration and impact

Vibration: 3-13.2Hz: 2mm p-p; 13.2-100Hz: 0.7g (compliant with IEC 60068-2-6)

Impact: When installing the base, 10g/11ms (half sine), in accordance with IEC 60255-21-2

5. Response time

Protection function response time

Bus overvoltage/undervoltage<50 ms

Bus over/under frequency<50 ms

Generator overvoltage/undervoltage 70-300 ms

Generator over/under frequency 70-300 ms

Current protection 100-300 ms

ROCOF 100 ms

Vector jump of 30 ms

Fast overcurrent<42 ms

6. Physical specifications

Weight: Host 1.6 kg, display cable options 0.2-0.4 kg

Wiring terminals:

AC current terminal: maximum 4.0 mm ² multi strand wire, torque 0.5-0.6 Nm

Other terminals: Maximum 2.5 mm ² multi strand wire, torque 0.5-0.6 Nm

Material: All plastic materials comply with UL94 V1 self extinguishing rating

7. Governor interface

Multi line 2 can interface with mainstream speed regulator brands, including:

GAC

Barber-Colman

Woodward

Cummins

The specific interface guide can be obtained from the DEIF official website.

Safety and Compliance

1. Safety precautions

Installation work can only be carried out by authorized personnel with electrical equipment operation qualifications

It is strictly prohibited to touch the AC measurement input terminal when the equipment is live, as it may cause electric shock

Electrostatic discharge protection: Pay attention to anti-static measures during installation, and no special protection is required after installation

Use shielded twisted pair cables for signal transmission to reduce electromagnetic interference

2. Standards and Certification

Category standards

Electrical safety EN 61010-1 (installation category III, 600V, pollution level 2), UL 508

Electromagnetic compatibility EN 61000-6-1/2/3/4, IEC 60255-26, IEC 60533

Environmental testing IEC 60068-2-30, IEC 60068-2-6, IEC 60255-21

Protection level IEC 60529

Marine standard IACS UR E10

3. UL/cUL Special Requirements

Use 60/75 ° C copper wire

Installed on the flat surface of Type 1 casing

Compliant with NEC (USA) or CEC (Canada) specifications

Maximum working environment temperature 55 ° C

AC current input from 1-5A CT

AC voltage input range 110-480V AC

Summary of Application Value

The Multi line 2 series controller provides a cost-effective solution for generator control with its modular hardware architecture, flexible optional features, comprehensive protection functions, and international certification. Its main value lies in:

Flexible configuration: 8 slots support multiple I/O expansion and communication options, meeting various applications from simple protection to complex grid connection

High reliability: certified by classification societies, compliant with IACS UR E10 and UL508 standards, suitable for harsh marine and industrial environments

Accurate measurement: Three phase true RMS measurement, Class 1.0 accuracy, supporting a wide voltage and current range

Rich communication: supports CANopen, Modbus, Profibus, and mainstream engine ECM direct connection

Quick protection: millisecond level response time, ensuring the safety of generator sets and power systems

Convenient installation: DIN rail and base installation are optional, and the display cable enables cabinet door installation