TITAN GO Product Manual |
Wiring and Connections
INGENIA | 2022-07-14 08:35:14
58
7.4.2 DC motors and voice coils actuators
DC motors and voice coil actuators are connected to phase A and phase B terminals. Phase C terminal is left
unconnected.
•
•
For reducing the coupling between phases, space the phases 120º apart.
Start each phase wire in
the same rotating direction
, wrapping all phases clockwise or anticlockwise. This will add the
common mode flux and increase its impedance.
Remind that PE cable must NEVER pass through the choke as this would couple the noise to Earth.
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.
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