Siemens SINAMICS S120 Commissioning Manual page 97

Figure 2-18
Measuring systems from Renishaw (e.g. RGH22B)
As the reference mark for the Renishaw RGH22B has a direction-dependent position, with
control cables BID and DIR, the encoder must be parameterized, so that the reference mark
is only output in one direction.
The direction (positive/negative) depends on the geometrical arrangement at the machine
and the reference point approach direction.
Table 2-17
BID
DIR
+5 V
0 V
The counting direction of the measuring system is positive if the sensor head moves relative
to the gold band in the cable outlet direction.
Figure 2-19
Note
If the sensor head is mechanically connected to the primary section, the cable outlet
direction must be different. Otherwise, invert the actual value.
Commissioning
Commissioning Manual, (IH1), 07/2007 Edition, 6SL3097-2AF00-0BP7
+
Determining the counting direction for measuring systems from the Heidenhain Company
Overview of signals
Signal Cable color
Black
Orange
Brown
White
Determining the counting direction for measuring systems from Renishaw
2.10 Commissioning linear motors (servo)
Circular connector
12-pin
Pin 9 Reference marks in
both directions
Pin 7 Positive directions
Pin 12
Pin 10
Commissioning
Connected to
+5 V 0 V
Reference marks in
one direction
Negative direction
97