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AMM8A SSI & BiSS C-mode
Output code
The encoder provides the absolute position or speed or acceleration information
in the set code format: GRAY code (bit 5 = “0”) or BINARY code (bit 5 = “1”).
Default = 1 (Binary)
Counting direction
It allows to set whether the position information output by the encoder
increases when the shaft rotates clockwise or counter-clockwise. Clockwise and
counter-clockwise rotations are viewed from the flange (see on page 32). It is
possible to choose the following options: bit 6 = “0” = CCW and bit 6 = “1” =
CW. When the counting direction is set to CW (
Counting direction
= 1 = CW),
the encoder will provide the increasing count when it turns clockwise (provided
that the counting direction input is connected as explained); on the contrary
when the counting direction is set to CCW (
Counting direction = 0 = CCW),
the encoder will provide the increasing count when it turns counter-clockwise.
Default = 1 (CW)
WARNING
The counting direction can be set also via hardware (see the Counting direction
input, “5.3 Counting direction input” section on page 32). If not used, the
Counting direction input must be connected to 0Vdc. 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. Thus when the
counting direction is set to CW -
Counting direction = 1 = 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 option CCW is
set -
Counting direction
= 0 = 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).
For any information on the electrical connection of the Counting direction input
refer to the “5.3 Counting direction input“ section on page 32.
WARNING
After having set the new counting direction it is necessary to set also a new
preset.
NOTE
The counting direction function affects the absolute position information, not
the sine/cosine signals.
MAN AMM8A SSI_BiSS E 1.10.odt 8 - BiSS C-mode interface 65 of 80