DEIF AGC-4 Mk II Genset, Mains, BTB, Group and Plant Controller

Configurable controller from single genset to plant management

The DEIF AGC-4 Mk II is a configurable controller for a wide range of applications. It contains the three-phase measuring circuits and all functions needed to protect and control a genset, and the same family also protects and controls mains connections, tie breakers and bus tie breakers. A single controller can run one genset, controllers can share load with CANshare or PMS lite, and in a full power management system up to 40 AGC-4 Mk II controllers can be connected.

DEIF lists the AGC-4 Mk II in combination with AGC-4, iE 150, AGC 150 (up to 32), ASC 150 solar and storage controllers and ALC-4 load controllers. With extended power management a system can handle up to 992 gensets. Plant modes include automatic mains failure, fixed power, peak shaving, load takeover and mains power export, and all modes can be combined with AMF.

Technical specifications

Displays, options and engine communication

The controller is operated from a TDU touch display or the DU-2 LCD display, with the AOP-1 and AOP-2 additional operator panels available as options. Accessories include DU-2 display cables of 1, 3 and 6 m (J6, J1, J2), a USB PC cable (J7) and the RMB connector kit (J8). The ordering example in the data sheet shows the variant number and option letters, so the variant and options must be stated in an enquiry.

Hardware options include dual CAN (H12.8) for engine communication, DVC 550, 350 and 310 digital voltage controllers, external I/O and CANshare, an MTU ADEC option (H13), and 4 to 20 mA, relay and multi-input extension cards. The data sheet lists third-party digital load sharing with ComAp, DeepSea MSC7 and SmartGen controllers using option H12.

Selecting the AGC-4 Mk II

Choose the variant for the role of each controller, then the display, the engine interface, the power management scale and the extension options. Confirm whether a separate TDU is needed, because it is a separate product with its own data sheet. The newer AGC 150 covers many of the same roles in a compact housing, so compare it with this model when the project needs the AGC-4 Mk II platform for compatibility with an existing plant.

How the DEIF AGC-4 Mk II works

The controller measures the voltage, current and frequency of the genset and of the mains. It starts and stops the engine, closes and opens the breakers and shares the load with other sets. Its protections trip the set on faults. Each controller has its own task, genset, mains, tie breaker, group or plant, and the controllers talk over a network.

Where the AGC-4 Mk II is used

• Single gensets
• Stand-by sets with mains failure start
• Load sharing plants
• Peak shaving
• Plants with tie breakers and bus ties

Selection checklist for the AGC-4 Mk II

• Variant: genset, mains, BTB, group or plant
• Supply of 12/24 V DC
• Voltage and current ranges
• Digital inputs and relay outputs
• Display unit or AOP
• Engine communication
• Number of controllers in the plant
• Mounting method

Installation, commissioning and maintenance notes for the AGC-4 Mk II

Mount the controller on a DIN rail or a base with six screws. Wire the supply, the measurements and the breaker signals. Load the parameters with the PC software. Test the plant modes without load first. Check the alarm log after the first runs.

Requesting a quotation for the DEIF AGC-4 Mk II

Please send the variant, the options and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

AGC-4 Mk II variants

The variants are 01 Genset, 02 Mains, 03 BTB, 04 Group and 05 Plant controller.

AGC-4 Mk II plant modes

The plant modes are automatic mains failure, fixed power, peak shaving, load takeover and mains power export.

AGC-4 Mk II power management

Up to 40 controllers can be linked, and extended power management handles up to 992 gensets.

AGC-4 Mk II supply

The auxiliary supply is 12/24 V DC, with an operating range of 8 to 36 V DC.

AGC-4 Mk II measurement

The voltage runs from 100 to 690 V and the frequency from 10 to 75 Hz.

AGC-4 Mk II relay outputs

The relay outputs are rated 250 V AC or 30 V DC at 5 A.

AGC-4 Mk II temperature range

The operating range is minus 25 to plus 70 degrees C.

AGC-4 Mk II protection and weight

The controller is IP20 and weighs 1.6 kg. The display unit is IP40 and weighs 0.4 kg.

Controller records for the AGC-4 Mk II

Record the parameter file, the software version and the date of each test.

Choosing the right AGC-4 Mk II variant

Choose one controller for each breaker or genset that the single-line diagram shows.

Documents and quotation

The attached DEIF data sheet is the full 46-page document. Send the variant, options, quantity and engine data for a quotation. See Diesel Generator Spare Parts for other generator control products.