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Appendix D: Regen Pack Option
Appendix D: Regen Pack Option
When a large inertial load is decelerated or a ve rtical load is lowe re d , the mech a n i c a l
e n e rgy that is not dissipated as heat in the actuator or drive is “regenerated” by the
motor and transferred back into the drive’s power supply.This causes the drive’s
power supply voltage to increase. Without circuit protection,this voltage increase
can damage a drive. Without a means of dissapating this energy, such applications
cannot be solved.
All IDC servo drives are fully protected against excessive regenerative energy. First,
they are overvoltage and short circuit protected.Second,they are capable of dissi-
pating regenerative energy both internally, and in extreme cases, ex t e rn a l ly using
our model RPACK-1 or RPAC K - 2 . Our dri ve ’s LEDs will even indicated when excessive
regenerative energy is present in your application.
An RPACK allows you to make more aggressive moves in high inertia,low friction
a p p l i c a t i o n s .E a ch RPACK provides connections for hook-up to either servo or stepper
d ri ves for a total dissipation of 240W continuous and 1000W peak (for 3 seconds).
Regen Capacity
(watts or joules)
B8000 Series
Internal without fan
Total energy storage capacity (max)
Continuous
70 joules (1 axis)
Peak (3 sec)
140 joules (2 axis)
Internal with fan
Continuous
70 joules (1 axis)
Peak (3 sec)
140 joules (2 axis)
RPACK (additional)
Continuous
240 watts
Peak (3 sec)
1,000 watts
When to use an RPACK-1 or RPACK-2
If drive faults due to overvoltage
If load is vertical with ballscrew
If decelerating large inertial loads
Dimensions
in [mm]
Front View
Side View
Содержание B8961
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