Installation Guide
INGENIA MOTION CONTROL
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6.3 Jupiter power specifications
Value
Notes
Maximum overtemperature fault
110ºC
Measured on the power stage (not the heatsink)
Thermal impedance from power stage to air
no cold plate / no heatsink
5.2 K/W
with cold plate / no heatsink
3.6 K/W
Maximum power dissipation without heatsink
no cold plate / no heatsink
11.5 W
At T 50ºC
A
with cold plate / no heatsink
16.7 W
Thermal resistance from power stage to heatsink (cold plate version)
3.6 K/W
Thermal time constant
3000 s??
Temperature stabilization is found after ~ 3 τ
Power losses calculation (heat dissipation)
Operation of the Jupiter causes power losses that should be transferred to the surrounding environment as heat. Heat dissipation depends on various parameters.
Principally:
Motor RMS current: positive correlation.
DC bus voltage: positive correlation.
Jupiter variant: JUP20/130 and
/130 variants have different power transistors with higher losses for the same current as the 80V variants. Different
JUP35
charts are provided for each variant.
Other less relevant parameters affect also the power loss but are not considered in the graphs:
Air temperature, higher power semiconductor temperatures reduce their efficiency.
Motor speed. Faster motor speeds result in higher overall power loss since the input current is greater.
