Lika AMM8A, Руководство пользователя

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AMM8A SSI & BiSS C-mode
input is connected to +Vdc, the position value increases when the encoder disk
rotates counter-clockwise. CW and CCW rotations are viewed from flange side.
If not used, connect the Counting direction input to 0Vdc (standard counting
direction, see the Figure).
WARNING
In the BiSS C-mode interface the counting direction can be set also via software
by setting the bit 6
Counting direction
in the register 49
Configuration
. The
Counting direction
parameter implies that the Counting direction input is set
to 0Vdc (standard counting direction). Otherwise the resulting will be contrary
to what is expected or intended.
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 (count up information) 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).
WARNING
After changing the counting direction you are required to set a new zero /
Preset.
NOTE
The counting direction function affects the absolute position information, not
the sine/cosine signal.
5.4 Zero setting / Preset input
The output position information at a point in the shaft rotation can be set
either to 0 (SSI interface) or to a desired value called preset (BiSS C-mode
interface; the preset value has to be set next to the
Preset registers, see on page
67). The Zero setting/Preset input allows the operator to activate the zero
setting/preset function by using an input signal sent by a PLC or other
controller. To activate the zero setting/preset function, connect the Zero
setting/Preset input to +Vdc for 100 µs at least, then discVdc; normally
voltage must be at 0Vdc. Zero setting/Preset must be set after Counting
MAN AMM8A SSI_BiSS E 1.10.odt 5 - Electrical connections 33 of 80