SMI21
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9. MOTOR ELECTRICAL CONNECTION
9.1. Power Connection
We recommend grounding the motor housing.
Power connection diagram
.
Figure
4
(1)
Include capacitors to smooth out inrush currents. Recommended value 1000 µF/A drawn.
(2)
Optional. The ballast circuit eliminates voltage surges produced when braking. See next section.
The product is not protected against polarity reversals on the power cable.
A polarity reversal can damage the product irreversibly.
9.1.1. Ballast Circuit
When the motor brakes, the kinetic energy stored in the inertias during rotation is returned to the power
supply and generates a voltage surge. This voltage surge can be destructive for the motor or for devices
connected to the power supply.
In the event of frequent braking,
an external ballast circuit must be used
.
It is always necessary to conduct tests to check what size it should be.