The DKG 105 AMF Unit is a robust and reliable Automatic Mains Failure device, designed for seamless management of generators in the event of a power failure. It offers flexibility through programmable parameters, allowing customization to fit various applications. This guide will help you navigate through its programming mode, modes of operation, mounting process, terminal connections, and best practices for optimal use.
Programming Mode: Configuring Your DKG105 AMF Unit
The programming mode in the DKG 105 is essential for setting up timers, operational limits, and other configurations to ensure the generator operates smoothly under different conditions.
How to Enter Programming Mode:
- Press the OFF button.
- Hold the MENU button while continuing to press the OFF button for 4 seconds.
- The display will show “Pr” indicating you’ve entered programming mode.
In this mode:
- Each press of the MENU button cycles through the program numbers (P01, P02… P20).
- The program values can be adjusted using the TEST (-) and AUTO (+) keys.
Important Programmable Parameters:
- P01-P02: Set the lower and upper voltage limits for mains.
- P03-P04: Set the lower and upper voltage limits for the generator.
- P05-P06: Define the lower and upper frequency limits.
- P07: Frequency delay timer for stability.
- P08: Number of start cycles.
- P09-P12: Various timers such as wait before start, between starts, start, and stop timers.
- P13-P16: Timers for contactor operations and cooling periods.
- P17-P19: Configuration for relays, fuel timers, and input selection.
- P20: Maximum engine run time limit.
- P21-P22: Control of auxiliary relays for specific functions like choke or fuel solenoids.
To exit programming mode, simply press the OFF button again.
Modes of Operation
The DKG 105 AMF Unit offers multiple modes of operation, each selected by pressing the corresponding front panel keys. These modes allow users to manage the generator and mains connections efficiently depending on the current needs.
OFF Mode:
- The mains contactor is energized if the mains phase voltages are within programmed limits.
- The engine will remain stopped.
AUTO Mode:
- Enables automatic transfer between generator and mains.
- If any mains phase voltage is outside limits, the mains contactor deactivates, and the generator starts after a waiting period.
- Once the generator voltage stabilizes, the generator contactor is energized, and the load transfers to the generator.
- When mains voltages return within limits, the system waits for the mains waiting period before transferring the load back to mains and deactivating the generator.
TEST Mode:
- Used to test the generator while mains are on or keep the generator ready in backup mode.
- The generator operates like in AUTO mode, but the mains contactor remains energized unless mains fail.
- To stop the engine in TEST mode, press the OFF button.
DISPLAY TEST Mode:
- Tests the functionality of the display panel.
- Activated by pressing the OFF and TEST buttons together and deactivated by releasing all buttons.
PROGRAM Mode:
- Used to program timers and operational limits, as discussed in the Programming Mode section.
Introduction to the Control Panel
The DKG 105 AMF Unit is designed with user-friendliness in mind, making it simple for both installers and users to navigate its functions. Most of the default factory settings are adequate for standard operations, but customization is available to fit unique scenarios.
Mounting the DKG105 AMF Unit
Proper mounting is crucial for the secure and optimal operation of the unit:
- Panel Mounting: The unit fits into a standard 68×68 mm panel meter opening.
- Secure Positioning: Use the provided steel spring to hold the unit firmly in place on a flat, vertical surface.
- Accessibility: Ensure only the front panel is accessible to users for safety.
Inputs & Outputs Terminal Connections
Understanding the terminal connections ensures correct installation and operation:
- Neutral (N): Common neutral for both mains and generator phases.
- Generator Phase (G): Input for one generator phase with programmable voltage limits.
- Generator Contactor: Provides energy to the generator contactor, deactivating if voltages are outside limits.
- Mains Phases (T/S/R): Inputs for mains phases with programmable limits.
- Mains Contactor: Similar to the generator contactor, this manages the mains supply.
- High Temperature Switch: Input for temperature monitoring.
- Low Oil Pressure/Level: Ensures engine protection by monitoring oil pressure.
- Fuel Output: Activates the fuel solenoid during engine start and stops it upon shutdown.
- Crank Output: Manages engine cranking during startup.
- Auxiliary Relay Output: Can be configured for alarms, preheat, choke, and fuel solenoid control.
- Battery Terminals: For connecting the DC supply (12V or 24V systems).
How to Use the DKG 105 Properly
- Regular Maintenance: Ensure periodic checks of connections and settings.
- Monitoring Parameters: Continuously monitor voltage, frequency, and timers to avoid malfunctions.
- Respond to Alarms: The unit is equipped with alarm functions for high temperature, low oil pressure, and other critical issues. Immediate attention to these alarms ensures prolonged life and reliability of the generator.
- Secure Installations: Always follow manufacturer recommendations for mounting and electrical connections to prevent hazards.
Conclusion
The DKG 105 AMF Unit offers a robust solution for generator management with user-friendly programming, flexible configurations, and multiple modes of operation to handle diverse scenarios. By following the above steps, you can ensure that your generator operates efficiently, providing uninterrupted power during mains failures.