Triton Go Product Manual |
Wiring and Connections
INGENIA | 05/29/2017
61
Common-mode choke
In order to minimize EMI that can affect sensitive signals, the use of a
motor choke
is recommended.
The objective of the motor choke is to
block the common mode current
to the motor and cables.
While using a separate choke for each phase could also work, the EMI reduction would be much lower
than passing all the phases through the same choke.
Proper DC motor choke wiring
In order to minimize the capacitive coupling of the motor wires, and therefore cancelling the effect of
the common mode rejection effect, the choke has to be properly wired.
•
An excessive number of turns causes a high capacitive coupling. Only 2 or 3 turns per motor
phase are recommended.
•
For reducing the coupling between positive and negative, space them 180º apart.
Start positive
and negative wire in the same rotating direction
, wrapping both phases clockwise or
anticlockwise. This will add the common mode flux and increase its impedance.
