FAQ

Quickly find answers and general information about our products.

DC-UPS

What is the DC-UPS "All in One"?
The DC-UPS "All in One" by Adelsystem is an advanced, compact device that combines multiple functions into a single module:

• Power supply
• UPS and Backup module
• Battery charger and Battery tester.

It ensures uninterrupted power supply by seamlessly switching between the main power source and battery backup without any interruption during power outages.
What is the difference between a DC-UPS and a battery charger?

The DC-UPS provides continuous DC power to connected loads without interruption. 

During normal condition, the DC-UPS powers the load and charges the batteries simultaneously by taking power from the AC mains. When AC mains power fails, it immediately switch to battery power, ensuring no power interruption. 

Adelsystem offers DC-UPS CBI Line.

The Battery Charger simply charges the connected batteries. 
When AC mains present, it charges the batteries. As soon as there is a grid failure, the unit switch off. 

Adelsystem offers Battery Charger CB Line

Do the DC-UPS have an internal battery?

No, Adelsystem DC-UPS do not have internal battery. 
Adelsystem offers external din rail battery enclosure of different sizes: 1.2Ah, 3.4Ah, 7.2Ah and 12Ah.
These solutions allow easier replacement, flexibility in choosing battery types (e.g., VRLA, Li-Ion), and scalability for various capacities. External batteries simplify maintenance without opening the DC-UPS in case of failure and enhance system reliability.

What is the input voltage of DC-UPS?
Adelsystem DC-UPS "All in One" features a wide AC input voltage range of 90-305 VAC, enabling seamless operation across diverse applications (110V, 240V, 277V).
This flexibility ensures reliable performance in environments with unstable or fluctuating power grids, maintaining consistent power delivery and battery charging.
What is the load output voltage of DC-UPS?
Adelsystem DC-UPS "All in One" have a stabilized load output voltage that follows the battery voltage, ranging from 22-26V for 24V models.
An example with DC-UPS 24V, in normal operation and battery fully charged the DC-UPS load output voltage will be around 26V. In case of mains failure, the load voltage will follow the decreasing voltage of the batteries thill 22V. 

Please note that the load output voltage is stabilized and controlled by the DC-UPS. This dynamic range ensures compatibility with most industrial components, providing reliable power delivery even in fluctuating conditions. 
Can I turn on the DC-UPS with only the batteries connected?

Yes, Adelsystem DC-UPS include the "Start from Battery" feature

By pressing the red Start Battery button, the unit activates using power solely from connected batteries, without requiring mains power. This ensures reliable operation in off-grid or emergency scenarios, ideal for critical applications.
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Communication Protocols

Which communication protocols are supported by Adelsystem DC-UPS?

Adelsystem DC-UPS support MODBUS RTU RS485 or MODBUS TCP/IP, SNMP and HTTPS.
This allows easy integration with PLCs, HMIs, SCADA systems, and remote monitoring platforms.

Which models support MODBUS RTU RS485?

Adelsystem has different DC-UPS with integrated MODBUS RTU RS485.

The DC-UPS CBI1235A, CBI2420A, CBI4810A and the dual voltage DC-UPS CBI2801224A and CBI2501224A.

The Battery Charger CB1235A, CB2420A and the dual voltage CB122410A and CB2501224A.

Which models support Ethernet communication?
Adelsystem design the most innovative DC-UPS with integrated Ethernet interface. This communication is available in CBI60 Series with CBI6012A, CBI6024A and CBI6048A; and in the CBI600 Series with CBI60024A and CBI60048A.
What kind of data can be read or written via communication protocols?

Adelsystem develop the communication protocols with different operation areas:

- Monitoring 
Real-time monitoring of AC input voltage, load output voltage and current, battery charging current, and battery status.

- Configuration
Configure the DC-UPS parameters. Select the battery type, charging voltage, and battery voltage protection.

- Allarming
Receive immediate alarms in case of AC mains failure, battery failure and DC-UPS issue.

- Data Logging
Records and analyzes all events and data occurring within the system.

Do I need proprietary software to use MODBUS? Is documentation available for integration?

No proprietary software is required. Our units use standard MODBUS protocols, compatible with most industrial control systems.
We provide full MODBUS register maps and specifications for integration.

Can I access the DC-UPS with integrated Ethernet via a web browser?

Yes, the CBI60 Series and CBI600 Series include an embedded web interface for live monitoring and configuration without installing additional software.

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Battery selection and types

What type of battery can I charge?

Adelsystem DC-UPS and battery chargers are suitable for all type of batteries: Lead Acid, Gel, AGM, Lead Crystal, NiCd, NiMh, Lithium and LiFePO4. You can find more information in the instruction manual in the Battery Type selection paragraph.

Can I charge different type of Lithium batteries?

Yes, Adelsystem has developed two different charging profiles for Lithium battery and LiFePO4 battery with 7 or 8 cells. In addition, you can configure the Float and Fast charge voltages according to the specifications provided by the battery manufacturer. Please note that all lithium-ion batteries must be installed in accordance with the manufacturer's instructions.

How can I correctly size the battery for my system?

To calculate the correct battery size for short-term backup, you can use following formula:

Load (A) × Backup Time (h) × Corrective Factor = Battery Capacity (Ah) 

The corrective factor accounts for battery type, aging, battery cables and safety margin.
Typical values: 1.2 for lithium, 1.5 for lead-acid systems.

How long will it take for my batteries to be fully recharged?

The time required to charge a battery largely depends on the ratio between the battery's capacity and the charger's output. Other key elements influencing the charging duration include the type of battery being used and the energy demands of any connected devices.

For lead-acid batteries, a general guideline is to divide the battery’s capacity by the charger’s maximum output and then add around four hours. This additional time accounts for the absorption phase, during which the battery regulates the incoming current and its charge level increases from approximately 80% to full capacity.

However, this estimate does not take into account the power draw from any connected devices. 

Occasionally, in Float charging mode, a current reversal occurs for a few milliseconds. Is this normal?

Yes, the device is performing a test of the internal impedance of the battery. This happens every two hours if the Battery Life Test feature is enabled.

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