Installation manual

GEO Direct PWM Amplifiers – Preliminary Documentation
System Wiring 25
Regen Resistor Wattage
Converting this energy into wattage can allow the rating of the regen resistor to be analyzed. The unit of
Joule is converted to wattage by dividing by the duty cycle of the overall motion profile.
d
t
excess
e
rms
Watts =
Where:
T
d
is the motion profile duty cycle, in seconds.
The peak wattage rating of the regen resistor is determined simply by dividing the square of the DC bus
overage specification by the resistors ohm value:
R
2
ov
V
Peak
Watts =