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UPS’s for high capacity drives

Dynamic Energy Supply DEV 3.0 for inverters

Additional energy provided directly to the DC link of drive inverters and servo controllers are supplied by the DEV devices of Michael Koch GmbH. When power is interrupted, the devices with power rating 2.0 can supply two to 18 kilowatt-seconds. This means that many applications can to be brought to a safe standstill from where they may be restarted without difficulty once power is restored. Presenting devices that are capable to deliver more energy for extended periods or that stay cool in case of planned, and i.e. frequent power interruptions. In comparison to the DEV 2.0, the DEV 3.0 can accommodate higher loads of about 50 percent. The DEV 3.0 device is conform with the requirements of UL. 

The respective devices achieve these higher capacities by a modification to the electronic controllers and significantly improved active cooling systems. This means that the Dynamic Energy Supply DEV 3.0 is capable of supplying about two to 30 kilowatt-seconds of energy from its internal storage directly into the heart of a converter when unplanned power outages occur. The energy value of the DEV 3.0 may increase significantly, depending on the specifications of the application. For this reason, a detailed examination of the application is required as provided by the application consultants of Michael Koch GmbH in close cooperation with the customer.  

The devices are suitable for use with any standard type of inverter because they are designed to control DC link circuit voltages of up to 800 volts DC (UL). These devices are not only suited for unscheduled power outages, but also for an overriding function for scheduled power outages, e.g. when FTS (driverless vehicles) must travel without any access to a power supply. Under these circumstances, the DEV works just as "unnoticed" as it does when the power supply is interrupted. "Unnoticed", because the devices automatically adjust to the given situations and always deliver energy independently when it is required by the DC link circuit. During installation, only two wires need to be connected before it is ready without further configuration or programming. 

The DES 3.0 is quickly available after your order. During our application consultation we determine under which circumstances which product and configuration represents an optimum solution.

Technical specifiations

Usable energy approx. 2,000 Ws
Constant voltage DC link circuit
max. 800 VDC
Working voltage ex-factory 470 VDC (other available)
Output power
max. 18 kW
Built-in PTC discharge resistor +
Dimensions: H x W x D
300 x 100 x 201 mm (11.81 x 3.94 x 7.91 in)
Weight approx.       
6.9 kg (15.21 lbs)
Protection class  
IP 20

Dynamic Energy Supply DEV2.0 and DEV3.0

The Dynamic Energy Supply DEV by Michael Koch GmbH
with the DEV 3.0 now have higher load carrying capabilities.




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