MMP SA-2550A
Page 15 of
24
Midwest Motion Products
DESIGN, MANUFACTURING & DISTRIBUTION - MOTION CONTROL EQUIPMENT
email:
Figure 4. Example of motor profile during operation.
When choosing a shunt regulator, select one with a shunt voltage that is greater than the DC bus voltage of the application but less
than the over voltage shutdown of the drive. Verify the for a shunt regulator by operating the servo drive under the worst-case
braking and deceleration conditions. If the drive shuts off due to over-voltage, a shunt regulator is necessary.
Continuous Regeneration
In the special case where an application requires continuous regeneration (more than a few seconds) then a shunt regulator may not
be sufficient to dissipate the regenerative energy. Some examples include:
Web tensioning device
Electric vehicle rolling down a long hill
Spinning mass with a very large inertia (grinding wheel, flywheel, centrifuge)
Heavy lift gantry
MIDWEST M
O
TION
P
RODUCTS
