Multi line 2 Series Generator Controller: Complete Installation and Configuration Guide
The DEIF Multi line 2 series is a microprocessor control unit designed specifically for medium to large generator sets, integrating generator protection, parallel control, power management, and other functions. This series includes three basic models: generator protection unit, generator parallel controller, and generator set protection unit. Through modular hardware slots and optional software functions, it provides users with highly flexible solutions.
This article is based on the installation manual of the Multi line 2 series controller (firmware version 2.40.0 and above), systematically explaining the installation process, hardware configuration, wiring specifications, and technical parameters of the equipment, aiming to provide comprehensive technical guidance for switchgear manufacturers, electrical engineers, and on-site installation personnel.
Product Overview and Model Classification
1. Product positioning
The Multi line 2 series is a core member of the DEIF Multi line product family, featuring a microprocessor architecture and a built-in three-phase true RMS measurement circuit. All measured values and alarm information are displayed on an LCD screen. This series of products is suitable for control and protection scenarios of generator sets that require flexible configuration.
2. Model classification
Full name of model, main application
GPU Generator Protection Unit, focusing on generator protection functions
GPC Generator Paralleling Controller is a generator parallel controller that supports parallel and grid connection
PPU Paralleling and Protection Unit, integrating control and protection functions
3. Standard functions
GPC/PU standard functions:
Application modes: single machine operation, multi machine parallel operation, grid connected operation
Control functions: synchronization, power and frequency control
Operating modes: fixed frequency, fixed power (base load), adjustment rate, load distribution
Protection functions: reverse power protection, overcurrent protection
Measurement system: Three phase true RMS, voltage and current input are electrically isolated
GSM communication: supports SMS alarm and remote dial-up access
GPU standard features:
Protection functions: reverse power protection, overcurrent protection
Display function: independent installation, configurable views, 150 event logs
GSM communication: supports SMS alarm and remote dial-up access
Functional features: Two sets of alarm settings, alarm suppression, electric horn relay, language selection, kWh/kVArh pulse output
4. Certification
The Multi line 2 series products have been certified by major classification societies, including:
Major ship level societies
Netmanagement
TUV Nord
GOST-R
UL/cUL (compliant with UL508 standard)
Installation requirements and mechanical dimensions
1. Installation method
The Multi line 2 controller supports two installation methods:
DIN rail installation: suitable for standard control cabinets
Base installation: fixed at the rear of the cabinet with 6 screws, which is the recommended installation method by DEIF, especially suitable for marine applications
2. Installation precautions
The device is designed to be installed inside the switchgear, and the display screen can be connected to the cabinet door through a display cable
Base installation method must be adopted in ship applications
During the installation process, attention should be paid to electrostatic discharge protection. After installation and wiring, no special protection is required
3. Panel openings and dimensions
Panel opening: height x width=10 mm x 30 mm
Display screen size: height x width=115 mm x 220 mm
Weight of host unit: 1.6 kg
Please refer to pages 70-76 of the instruction manual for detailed dimension drawings and screw hole positions.
Hardware architecture and slot configuration
Multi line 2 adopts a modular slot design, with the host housing divided into 8 card slots, each slot can accommodate standard functional cards or optional expansion cards. The green terminal block is installed on the PCB board and wired through the front.
1. GPC/PU slot configuration
Slot board type optional function terminal number
Slot # 1 Power Board Standard 1-28
Slot # 2 serial communication standard, optional H1/H2/H3 29-34
Slot # 3 Load Distribution and I/O Standards 37-64
Slot # 4 Adjustable Output/Analog Output/PWM D1/E1/EF2/EF3/EF4/EF5 65-72
Slot # 5 AC Measurement Standard 73-89
Slot # 6 Analog transmitter output/PWM F1/EF3 90-97
Slot # 7 Engine Control Card M1/M2 98-125
Slot # 8 I/O Expansion/Engine Communication M13/M14/M15/H4/H5/H6 126-133
2. GPU slot configuration
The slot configuration of GPU is slightly different from GPC/PU, mainly reflected in:
Slot # 3 is only installed when paired with G2 (synchronous control)
Slot # 4 supports F2 (analog transmitter output)
Slot # 8 supports load dependent start stop relay function
3. Optional Function Description
Function description of option code
D1 Voltage/VAr/Power Factor Control
E1 analog controller output
EF2/EF4 combined output
EF3/EF5 PWM output (speed control+differential adjustment)