mbWe are specialists in building the perfect blocks for a safe and fully reliable energy storage system. Now we have one flexible and highly configurable dual power chopper controller platform that allows multiple hardware and software configurations.

The platform is designed to support a DC Bus from an Energy storage or put energy into the Energy storage or a Breaking resistor. The platform is stackable and can work in parallel mode. The internal gating control is interleaved.

The paltform has the following key features:

  • Operates a Breaking resistor and/or an Energy storage set of batteries or supercaps
  • Optical or electrical control of the power stack
  • Parallel operation of several units
  • Current limitations in boost and buck modes and for both the Breaking resistor and the Energy storage
  • External or internal start command and oepration capabilities
  • External or internal references for different modes of operation
  • Additional I/O for system integration can be programmed based on customer requirement

The platform is originally equipped with the ZekaStream™ technology allowing high speed data logging within the microseconds range. This makes the device a highly valuable tool for catching transients and analyzing high-speed processes. Only one device with such a technology in your design is enough to change the way you commission the whole power plant.

Having numerous communication interfaces including Ethernet, RS485 and CANBus and utilizing Modbus, makes the integration with your industrial network an easy task. Profibus interface is also available using the GreenBee Modbus-to-PROFIBUS Gateway communication bridge.

Several digital and analog inputs and outputs are available for additional programming allowing extra flexibility during the system design or even when the project is in its final phase. The integrated Modbus master allows different Modbus slaves to be attached to extend IO and functionality.


Technical specification



16x Analog Inputs

±20mA, ±200mA, 110VAC

5x Analog Outputs

0-20 mA

16x Digital Inputs

+24V - +110V (> 15V on)

12x Digital Outputs

External Power Supply: Up to 125 V, 200mA

4x relay outputs

250 Vac / 5A, 30 Vdc / 3 A

Power supply

24 V ± 10 % / 1 A

Dimensions (W x L x H)

330 x 190 x 47 mm


0.8 kg

Operating temperature

5 ºC - 55 ºC

Protection class

IP 20


96 %, not condensing


Communication interfaces



1x Modbus RTU slave


1x Modbus RTU master


1x Modbus TCP slave


1x CAN






IEC 61000-4-4:2004

Electrical fast transient (Burst) ( 2 kV power , 1 kV signal )

IEC 61000-4-5:2006

Surge voltage ( 0.5 kV L-L , 1 kV L-GND )

BDS EN 61000-4-6:2009

Conducted radio frequency interference ( 3 Vrms / 150 kHz – 80 MHz )

IEC 61000-4-2:2009

Electrostatic discharge ( 6 kV contact , 6 kV air )

IEC 61000-4-3:2006

Electromagnetic field ( 10 V/m, 80 MHz – 2 GHz )

BDS EN 60068-2-6:2008

Environmental testing, Vibration - Test Fc ( 5 – 11 Hz / 1mm, 11 – 100 Hz/ 0.7g)

BDS EN 55016-2-1:2009

Conducted disturbance measurement

(DNV-OS-D202-2-4, Table 4-3 Class A)

BDS EN 55016-2-3:2010

Radiated disturbance measurement

(DNV-OS-D202-2-4, Table 4-3 Class A)

BDS EN 60068-2-1:2007

Environmental testing – Test A: Cold ( 5 ºC)

BDS EN 60068-2-2:2008

Environmental testing – Test B: Dry heat ( 55 ºC)

BDS EN 60068-2-78:2013

Environmental testing – Test Cab: Damp heat ( 40 ºC)

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