KONGSBERG DGU 8100272 Digital Governor Unit
KONGSBERG
New product
The KONGSBERG DGU 8100272 Digital Governor Unit is a dedicated marine engine governor and propulsion-control module used within Kongsberg's AutoChief control-system architecture.
The photographed unit from SM MARINE SERVICE™ is clearly identified as:
Manufacturer: Kongsberg Maritime AS
Manufacturing Location: Horten, Norway
Name: DGU
Part Number: 8100272
Revision: C2
Serial Number: 00023796
ECO No.: CO17355
Secondary Part Reference: 6200435
Secondary Revision: D
Communication: CAN + RS422/485
Equipment Type: Digital Governor Unit
Kongsberg's official AutoChief hardware documentation specifically lists DGU Part No. 8100272 as the system's Digital Governor Unit.
DGU stands for:
A digital governor is responsible for precise electronic regulation of engine speed.
Within a marine propulsion-control system, the governor compares the commanded engine-speed setpoint against measured engine-speed information and generates the necessary control output to the engine's governing / actuator arrangement.
The objective is to maintain the requested RPM as accurately as possible despite changes in engine loading.
This makes the DGU an important module in shipboard:
Main Engine Speed Control
Propulsion Automation
Remote Engine Manoeuvring
Governor Control
AutoChief Main Engine Control
Official Kongsberg classification documentation for the AutoChief 600 propulsion-control system includes:
DGU – Digital Governor Unit – Part No. 8100272
together with other important modules such as:
RPME – RPM Unit
MEI – Main Engine Interface Unit
ESU – Engine Safety Unit
ESS – Electric Shaft System
This confirms that DGU is not a generic standalone industrial governor.
It is a purpose-designed element of the Kongsberg marine propulsion-control architecture.
The main role of the DGU is engine-speed governing.
In simplified terms:
Requested RPM → DGU → Engine/Fuel Actuator → Engine RPM → Feedback → DGU
The governor continuously processes the difference between requested and actual speed and adjusts the engine control output accordingly.
This closed-loop speed-control concept helps maintain stable engine speed during varying propulsion loads.
Marine engine load changes continuously because of factors such as:
Propeller Load
Sea Condition
Vessel Manoeuvring
Draft Changes
Rapid Telegraph Commands
Acceleration / Deceleration
The DGU's task is to regulate the engine response while cooperating with the wider propulsion-control system.
A defective DGU can therefore potentially cause symptoms such as unstable RPM control, loss of governor response or propulsion-control alarms.
Kongsberg's official DGU technical datasheet provides the following specifications:
| Specification | KONGSBERG DGU |
|---|---|
| Part Number | 8100272 |
| Supply Voltage | 18–32 VDC |
| Nominal Power Consumption | 7.5 W |
| Maximum Power Consumption | 10 W |
| CAN Interfaces | 4 |
| RS422/485 Interfaces | 2 |
| Operating Temperature | -15°C to +70°C |
| Storage Temperature | -25°C to +70°C |
| Max Relative Humidity | 96% non-condensing |
| Mechanical Standard | IACS E10 |
| EMC | IACS E10 / IEC 60945 |
| Weight | Approx. 2 kg |
| Protection | IP20 |
| Built-In Self-Test | Module temperature |
The DGU operates from an 18–32 VDC supply.
This makes 24 VDC the normal nominal marine control-system supply range.
The photographed front face includes:
which is the power connection section.
Kongsberg states that the DGU power supply is fully isolated using a DC/DC converter.
This electrical isolation helps protect the control electronics and reduce interference between system sections.
One of the strongest features of the DGU is its CAN communication architecture.
The official datasheet states:
The photographed panel visibly includes:
X8 / CAN1
X9 / CAN2
X8L / CAN1
X9L / CAN2
These connectors allow the DGU to communicate within the AutoChief distributed-control architecture.
The rear product label also visibly contains:
This provides another valuable exact search term:
Kongsberg DGU CANopen
CAN-based communication is especially suitable for distributed marine control because multiple modules can exchange real-time system information over a common network.
The DGU also provides:
according to Kongsberg's official technical documentation.
The front face shows:
with visible pin descriptions:
Tx+
Rx+
Tx−
Rx−
0V
These interfaces can support serial communication with compatible control-system equipment.
Kongsberg specifies that:
RS422/485 interfaces are isolated
and:
CAN interfaces are isolated
using DC/DC converters and optical coupling arrangements.
This isolation is valuable in marine machinery environments where electrical noise, ground-potential differences and long control cables are common.
The front terminal/control face visibly includes several diagnostic indicators:
Run
W.Dog
Info.
End Init
These LEDs provide valuable diagnostic information during startup and operation.
Indicates normal processor/system operation when functioning correctly.
Watchdog monitoring is used to detect internal processor or execution faults.
Provides system/information status according to the configured software.
Indicates completion of initialization/startup sequence.
If a replacement DGU powers up but fails to reach normal initialization, these indicators can help guide troubleshooting.
Kongsberg officially specifies Built-In Self-Test (BIST) functionality for the DGU.
The documented parameter includes:
Module Temperature
This internal monitoring helps the control system identify potentially abnormal operating conditions.
One particularly important feature of the DGU is that Kongsberg specifically states that it may be mounted on vibrating surfaces such as engines and compressors, provided installation requirements are met.
That is significant because a main-engine governor module may be installed close to machinery rather than only inside a vibration-free control-room cabinet.
The DGU is therefore designed with a true marine machinery environment in mind.
Official specifications include:
Operating temperature: -15°C to +70°C
Storage temperature: -25°C to +70°C
Relative humidity: up to 96%, non-condensing
Mechanical environment: IACS E10
EMC: IACS E10 / IEC 60945
These ratings support use in demanding marine machinery installations.
Kongsberg documentation lists approval coverage including:
DNV
Lloyd's Register
Bureau Veritas
RINA
ClassNK
ABS
KR
CCS
among others.
Current classification documentation for AutoChief systems also continues to list DGU 8100272 within the approved hardware architecture.
The DGU normally operates as part of a larger system rather than independently.
Important related modules include:
Part numbers documented include 8100289 / 8100278.
Part number 8100276.
Part number 8100275.
Part number 8100282.
These are excellent related Kongsberg propulsion-control search terms, but they are different devices and are not substitutes for DGU 8100272.
Modern electronic governing requires an actuator or engine control element to physically adjust the engine's fuel or control input.
Current Kongsberg AutoChief type-approval documentation includes electric fuel actuators such as ELACT 3812 in the same broader propulsion-control architecture.
The exact actuator used with any particular DGU installation depends on vessel and engine configuration.
Therefore, we should not state that every DGU 8100272 installation uses the same actuator.
The actual photographed unit carries:
This is important when sourcing a replacement.
Another DGU may share part number 8100272 but have another hardware revision.
Market listings confirm multiple DGU revisions, including C1 and C2, while units with secondary part 6200435 are also documented.
Therefore:
Part Number + Revision + Secondary Part Number + Serial/Configuration should all be checked before replacement.
The smaller label visible on the photographed unit reads:
Independent DGU market documentation also identifies the 8100272 Digital Governor Unit together with Part 6200435 Rev D.
This is a valuable secondary procurement reference.
A buyer may therefore search:
8100272
6200435
DGU
Digital Governor Unit
and be referring to the same DGU assembly family.
Current Kongsberg type-approval documentation identifies 8100272 as the Digital Governor Unit within AutoChief 600 hardware.
The market also commonly lists the part under:
This makes AutoChief 600 a highly relevant SEO keyword for the part.
Because the DGU participates in main-engine governor control, a failure may affect propulsion-speed regulation.
Possible symptoms can include:
Loss of governor response
RPM not following command
Unstable engine speed
Governor communication alarm
CAN communication fault
Serial communication fault
DGU initialization failure
Watchdog indication
Loss of actuator command
AutoChief propulsion-control alarm
These symptoms do not automatically prove the DGU itself has failed.
The complete propulsion-control loop must be checked.
Check:
18–32 VDC power supply
X10 PWR terminals
Cable condition
External fuse/protection
Connector tightness
Control cabinet or machinery-mounted supply
Check whether the unit is receiving the correct supply and whether initialization is completing.
A RUN fault may indicate internal or communication/system problems, but diagnostic procedure should follow the applicable Kongsberg service information.
A Watchdog indication may relate to internal processor or software execution supervision.
Power cycling alone should not be repeatedly used without investigating the root cause.
Possible areas to inspect include:
Power quality
CAN network
Module ID / configuration
Internal electronics
Associated system controllers
Check:
CAN1 / CAN2 wiring
X8 / X9 connectors
X8L / X9L connectors
Bus termination
Cable shielding
Module configuration
Other AutoChief network nodes
Check:
Tx+/Tx− wiring
Rx+/Rx− wiring
0V reference
Cable polarity
Shielding
Connected equipment
Do not immediately replace the DGU.
Also inspect:
RPM feedback signal
Engine actuator
Fuel system response
Mechanical governor components where applicable
Speed setpoint input
CAN communication
Governor settings/configuration
Possible checks include:
Telegraph / propulsion command source
AutoChief control mode
DGU status
RPM feedback
Actuator command chain
Safety interlocks
Engine shutdown/slowdown conditions
For sourcing a replacement, send as much of the following as possible:
Manufacturer: Kongsberg Maritime AS
Product: DGU – Digital Governor Unit
Part Number: 8100272
Revision: C2 or existing revision
Secondary Part: 6200435
Secondary Revision: D where applicable
Serial Number: useful for identification
CANopen / Communication Configuration
AutoChief System Version
Front and rear photographs
Do not order only by the word “Kongsberg Governor.”
SM MARINE SERVICE™ supplies and sources KONGSBERG DGU 8100272 Digital Governor Units, AutoChief propulsion-control modules and related marine automation spare parts.
Relevant enquiry references include:
KONGSBERG DGU
DGU 8100272
Digital Governor Unit 8100272
AutoChief 600 DGU
Kongsberg 6200435
Kongsberg Engine Governor Module
Kongsberg Main Engine Speed Controller
Depending on availability, equipment may be supplied in:
New • Used • Refurbished • Reconditioned • Tested Working Condition
For Kongsberg AutoChief and propulsion-control spare-part sourcing, customers can also search through www.smmarineservice.com using any of the above part numbers or model references.
DGU means Digital Governor Unit. It is a Kongsberg marine engine-speed governor/control module used within the AutoChief propulsion-control architecture.
The primary documented part number is:
8100272
It is a secondary part/assembly reference found on DGU 8100272 units, including the photographed unit. Independent listings also associate 6200435 Rev D with DGU 8100272.
Yes. Current Kongsberg classification documentation lists DGU 8100272 as a Digital Governor Unit in the AutoChief 600 hardware architecture.
Kongsberg specifies an 18–32 VDC supply.
Yes. The official datasheet specifies four CAN interface connections.
Yes. Kongsberg specifies two RS422/485 interface connections.
Kongsberg states that it may be mounted on vibrating surfaces such as engines and compressors when installed appropriately.
Do not assume so. The part number may be the same, but revision, hardware, software and system configuration should be checked before substitution.
The same system family includes RPME, MEI, ESU and ESS modules, among others.
SM MARINE SERVICE™ supplies and sources Kongsberg AutoChief, propulsion-control and marine-automation spare parts for customers worldwide.
KONGSBERG DGU 8100272 Digital Governor Unit for AutoChief marine propulsion and main-engine speed-control systems. The photographed SM MARINE SERVICE™ unit is Part No. 8100272, Revision C2, Serial No. 00023796, with secondary Part 6200435 Rev D. Official Kongsberg specifications include 18–32 VDC supply, four CAN interfaces, two RS422/485 interfaces, isolated power/communication circuits, Built-In Self-Test and suitability for demanding marine machinery environments. New, Used, Refurbished and Reconditioned Kongsberg DGU and AutoChief spare parts available with worldwide shipping and technical support.
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment
Stock Location:
• Bangladesh • China
Services:
• Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing
SM MARINE SERVICE™ Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh
Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com
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