Applied Motion STR2 - Manual (Page 12)

12
STR2 Hardware Manual 920-0059B
1/30/2014
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. Unregulated 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.
System Wiring Recommendations
1. Separate the DC power supply cable by at least 2” from the small signal input cable and the
encoder feedback cable.
2. A shielded cable for the DC power supply connections will result in a quieter system.
Ground the shield at the power supply.
3. A shielded cable is recommended for the small signal connections. Ground the shield at
the signal source.