Accupack LDR40MH24-RS uninterruptible power supply

Automated Control and FEAS have introduced the Accupack FEAS LDR40MH24-RS uninterruptible power supply (UPS). The unit features an onboard 24 VDC switchmode power supply, integral batteries and serial communications, and is suitable for industrial applications requiring a compact and robust power source.

The Accupack LDR connects between the line voltage (85–270 VAC or 120–400 VDC) and the field equipment, and is capable of supplying full load currents of up to 5 A at 24 VDC. To allow for intermittent high current demands on the system, the full load current can be exceeded by up to 50% for limited periods of time. Additionally, the output is short-circuit and polarity protected to prevent damage caused by incorrect installation.

During mains operation the AC/DC converter supplies the load with power while also providing the sealed batteries with an optimal charging voltage. In the event of a mains power failure, the easily replaceable sealed batteries supply the load until the mains power is restored. Using the LDR’s RS232 or RS485 interface, status messages relating to input voltage, temperature and battery capacity can be communicated to the upstream control system.