Figure 16: H-bridge reverse direction
To activate the H-Bridge as shown above, the ladder logic should make the first
output active and leave the second output inactive. To reverse current flow, the
ladder logic should make the first output inactive and the second output active.
If neither of the outputs are active, all switches are off and the outputs are
floating. If both outputs are active at the same time, the output to go active first
(i.e. the one that is processed first in ladder logic) will be high side, the other will
be the low side. It is recommended that this situation be avoided by writing ladder
logic to prevent both being active at the same time.
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