Schneider Electric Lexium 17S Series - Manual (Page 136)

124
Determining External Regen Resistor Size, continued
Power
Dissipation
Calculation
Procedure,
continued
Drive Energy
Absorption
Capability The drive energy absorption capability values (in joules) that are needed during the
sizing calculations are provided in the following table.
Note: Multiple drives can be interconnected via the DC-Link. When this is done, the
energy absorption capability of the drives and the continuous power ratings of the
Regen resistors are additive. The energy absorbed by the drives must be
calculated by superimposing all the time speed plots and calculating the energy
generated by each axis. (For calculating the power in complex multi-drive
applications contact Schneider Electric for assistance.)
Step Action
8 Compare the pulse power and the continuous power calculated with the
ratings of the internal Regen resistor in the drive. If either one is greater
then an optional external Regen resistor must be chosen and installed.
(See the Parts List appendix for a list of the available optional external
Regen resistors.)
Drive Energy Absorption Capability (joules)
Line Voltage 230 VAC 400 VAC 480 VAC
Drive
Model
Number MHDS1004N00
MHDS1008N00
MHDS1017N00
MHDS1028N00 5 19 23
MHDS1056N00 10 38 47