Relec adds CBI DC-UPS DIN rail modules

Offering digital control, the CBI series of DIN rail mount DC uninterruptible power supplies (DC-UPS) from Adel Systems are now available from Relec Electronics.

To maintain available power for uninterrupted system operation, the CBI series of DC-UPS system modules combine DIN rail power and battery management in a single unit. They can be used in a range of demanding applications, including process control, machinery, security or communications.

The DC-UPS system ensures full power is always available to the load. Multi-stage charging adapts to the battery’s status, so that, even when close to 0V, the battery can be recharged for a full recovery. In addition to ensuring operation, availability means that power requirements for the system can be minimised, reducing component count and cost, adds Relec.

The DC-UPS modules intelligently manage the available power between load and battery to protect against outages and deliver uninterrupted operation. Instead of relying on an external battery to maintain power, the CBI series DIN rail modules charge and maintain batteries for the highest level of availability.   

A power boost mode allows the load current to be twice the rated output current for continuous operation and three times the rated current for four seconds. This level of flexibility is particularly useful when powering highly inductive loads like motors and machinery, points out Relec.

For machine and process control applications, which do not run 24 hours a day, the time buffering feature allows the length of time the systems will run after mains failure to be selected.

The CBI series, unlike most DC-UPS systems has an over-ride system to restart the battery without mains power. This restart is available via RTCONN cable connections or it can be accessed via a pushbutton on the front panel.

Automatic multi-stage charging and real time diagnostics allow fast recharge and recovery of deeply discharged batteries.

The ADELBus communication protocol is based on MODbus-RTU or CANbus. It connects, monitors and controls system parameters locally or via the internet using application tools and cloud-based applications.

Modules in the CBI series can charge any battery chemistry – including open lead acid, sealed lead acid, lead gel, Ni-Cd and Li-Ion – using factory pre-set charging curves. The CBI modules can be customised to meet specific user and application requirements.

An externally connected sensor automatically adjusts the system charge voltage according to the ambient temperature, to maximise battery life.

By constantly monitoring the batteries to determine its condition in real time, diagnostic battery testing guarantees battery reliability, explains Relec. Tests include continuously check internal impedance, reverse polarity connection, short circuit, open circuit, disconnected or poor battery connection.

Adel Systems’ DC-UPS modules range from 90 to 305V AC input and 36 to 500W output.

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