1.4.1.2 Technical Specs
General Specifications
Standard Bus Voltage 48 V
Activation threshold voltage V_th* Adjustable by the user to be 50, 53, 54, 55 or 57 V
Maximum voltage increase on the DC bus
**
V_th + 5 V
Absolute Maximum Voltage Up to 63 V
Rated continuous power 30 - 90 W, depending on cooling situation and duty
cycle
Peak Power 430 W
Period to apply peak power 250 ms
Ambient temperature for power ratings Room temperature (20 °C)
Maximum system temperature < 95 °C
*This voltage defines the voltage at which the first shunt starts getting active
**The voltage on the DC bus may increase up to 5 Volts above the threshold voltage (as long as the
regenerated power is below 430 W) for a short period of time. Please consider this when designing your
system
The Braking Chopper can dissipate up to 430 W for periods of 250 ms. In pulsed operation (as it typically
appears in robotic applications), the average power to be dissipated can be up to 90 W. Please ensure that the
Chopper Board is mounted on a proper surface that has a large enough volume for dissipating the generated
heat.
The shunts of the board will be activated if the voltage is above the Threshold Voltage with a deviation
of 1%.
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