Applied Motion STM23R-2ND - Manual (Page 12)

12
STM23R Hardware Manual 920-0056C
5/5/2015
Regeneration
If you plan to use a regulated power supply you may encounter a problem with regeneration. If you rapidly
decelerate a load from a high speed, much of the kinetic energy of that load is transferred back to the power
supply. This can trip the overvoltage protection of a switching power supply, causing it to shut down. Unregu-
lated power supplies are better because they generally do not have overvoltage protection and have large
capacitors for storing energy coming back from the drive. They are also less expensive. See previous section on
Connecting the Power Supply for details on the RC-050 regeneration clamp.
1.50
2.00
2.50
3.00
3.50
Am
ps
STM23R-3 70V Power Supply Current Full Load
No Load
0.00
0.50
1.00
0 10 20 30 40 50
Speed (RPS)