PxtRX / Active Energy Management Device for Electric Drive Technology
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Energizing Productivity Active Energy Management Device for Electric Drive Technology

Energizing Productivity Device series PxTRX

The new generation of active energy management devices for electric drives Your benefits Recovering braking energy Increase energy efficiency Increase productivity Controlled stops in case of power failure Bypassing power failures Mains-independent operation Compensate voltage dips No heat from braking energy Reduce load peaks Modular system Protect power quality Save money

Energizing Productivity Key features of the PxTRX devices Performance 30 A continuous current 60 A peak current for 45 seconds1 up to 48 kW peak power Wide voltage range Min. Operating voltage level 180 VDC Max. Operating voltage level 848 VDC (UL) / 1,000 VDC (IEC) Min. starting voltage level for the system (DC link or energy storage) approx. 45 VDC Safety functions Reverse polarity protection to DC link Integrated precharge circuit LSS charge protection switch: connection of charged energy storage modules possible Integrated load monitoring on both sides Internal fuses Communication 3...

Energizing Productivity Connections and variants of the PXTRX devices Top connections DC link connections 6 x digital I/Os, K-Bus (output only) Button Bootloading Reset button (restart) Automatic BRC threshold detection: Plug & Play Operating conditions via 4 LEDs

Key data 30 A continous current 60 A peak current for 45 s1 Min. operating voltage level 180 VDC Max. operating voltage level 848 VDC (UL) / 1000 VDC (IEC) Max. storage voltage 800 VDC Min. starting voltage level for the system (DC link or energy storage) approx. 45 VDC Connections bottom Connections storage extensions 25% duty cycle at 180s cycle time

Energizing Productivity PXTRX Full of power! The PXTRX active energy management device is designed to handle higher currents for a longer period of time. 30 Amps is the value of the continuous current and the rms current, the latter calculated over a cycle time of 180 seconds. The maximum current is 60 amps for 45 seconds, or 25 percent duty cycle in the above cycle time. At the extremes of the permissible storage voltage, this results in a power range of 5.4 to 48 kilowatts. But don‘t worry: If more power is required than a single device can supply, several PXTRXs are simply connected in...

Energizing Productivity PXTRX - Full of energy! Double-layer capacitor modules are the natural partners of the active energy management device PXTRX. Various modules are tested and approved ex works. Energy quantaties are available in fine gradations, which can be put together to fit the machine or system exactly. Since the PXTRX allows long cable lengths in the direction of the drive as well as in the direction of the storage, extensive mechanical freedom is guaranteed.

The modular design is suitable for both small and large drives, for supplying energy for a few seconds or even for longer periods of time. Your application alone decides, the system around the PXTRX adapts flexibly. The combination of the PXTRX power units with the doublelayer capacitor modules open up many new and helpful possibilities for entire machine series of different sizes and power ratings. And all this without any further complex adjustments.

Energizing Productivity PXTRX - Full of details! It is the many so-called small details around a system that are often decisive. The active energy management device PXTRX with the double-layer capacitor modules form the necessary core. And we offer useful additions. The appropriate protection systems are just as much a part of an active energy management system as completely assembled, ready-to-connect control cabinet solutions with a wide range of monitoring features. Connectible discharge resistors of the type SDU ensure that the high energies of the double-layer capacitor modules are...

Even faster is it with the Dynamic DischargeManager DDM, which, in conjunction with the PXTRX via an external safe braking resistor with a linear discharge curve, ensures that the energies of large double-layer capacitor systems are discharged in a very short time. In the event of voltage dips or power failures, you can also supply the 24-volt networks for the peripherals of your machine or system from the active energy management system around the PXTRX using the NEV Emergency Power Supply.

Energizing Productivity Realize advantages! Voltage dip or power failure Goal: Power supply in case of voltage dip or power failure The critical drive with an output of 45 kW is not protected against voltage dips or power failures. Problem: In order to prevent the very expensive workpiece from being destroyed and thus to maintain the ability to deliver and to avoid penalties, the critical drive must continue to operate for a guaranteed minimum of 10 seconds in the event of a voltage dip or power failure. Two PXTRX connected in parallel with a correspondingly large energy storage system...

Reduce power loads Goal: Reduction of grid connection capacity, energy savings High costs due to high peak grid performance and high energy consumption. Problem: The machine accelerates with a high load, resulting in high peak grid power. On the other hand, the braking energy is burned unused. Three PXTRX in combination with super capacitor modules. Drastic reduction of the peak power required from the mains Saving of the braking energy, which is buffered and made available to the system during acceleration Independent operation from the mains Goal: Existing system to be operated off-grid...

Energizing Productivity Technical data PXTRX Version November 02, 2022 Protection class Ambient temperature -10°C up to +65°C (transport, storage) 0°C up to +40°C (in operation) ≤ 95% (transport, storage) ≤ 85% (in operation) Cooling Limitation for installations in elevated areas Min. Operating voltage level UZmin Max. Operating voltage level UZmax Max. Voltage level energy storage UCmax Operation conditions UZ > UC. Otherwise immediate stop = safe separation of DC link from energy storage Galvanically isolated. For communication tasks with PXTRX without connecting it to DC link or energy...