Lika CKP58, Руководство пользователя, Страница: 22 / 44

IP58, IQ58, IQ36
4.9 Counting direction input (IP-, CKP- models only)
NOTE
The Counting direction input is only available on IP-, CKP- models.
By default the phase relationship between A and B channels is so that the rising
edge of A channel leads the rising edge of B channel when the encoder is
rotating in a clockwise direction (see the “4.7 AB0, /AB0 output channels”
section on page 20). Thus the
counter in the subsequent electronics will get the
count up. This input allows to have the count up also when the encoder is
rotating in a counter-clockwise direction (otherwise the count down when the
encoder is rotating in a clockwise direction). Connect the Counting direction
input to 0Vdc if not used. Connect the Counting direction input to 0Vdc to have
the increasing count when the encoder is turning clockwise; connect the
Counting direction input to +Vdc to have the increasing count when the
encoder is turning counter-clockwise. Clockwise and counter-clockwise
directions are viewed from the shaft side (see the Figure on page 33).
WARNING
The counting direction can be set also through the programming tool. The
Counting direction
parameter implies that the Counting direction input is set
to 0Vdc. Otherwise the resulting will be contrary to what is expected or
intended. The
Counting direction
parameter allows the operator to choose
between the
CW
and
CCW
options. When the counting direction is set to
CW
-
Counting direction
=
CW
-, if the Counting direction input has LOW logic level
(0Vdc) the encoder will provide the increasing count when the shaft is turning
clockwise (and the decreasing count when the shaft is turning counter-
clockwise); on the contrary if the Counting direction input has HIGH logic level
(+Vdc) the encoder will provide the increasing count when the shaft is turning
counter-clockwise (and the decreasing count when the shaft is turning
clockwise). When the
CCW
option is set -
Counting direction
=
CCW
-, if the
Counting direction input has LOW logic level (0Vdc) the encoder will provide the
increasing count when the shaft is turning counter-clockwise (and the
decreasing count when the shaft is turning clockwise); on the contrary if the
Counting direction input has HIGH logic level (+Vdc) the encoder will provide
the increasing count when the shaft is turning clockwise (and the decreasing
count when the shaft is turning counter-clockwise).
WARNING
After setting the new counting direction it is necessary to set also the Index
pulse.
MAN IP58_IQ58_IQ36 E 1.6 Electrical connection 22 / 44