Schneider Electric 17S Series User Manual

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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