4
01.99
4.10 Linear motors (1FN1, 1FN3 motors)
4-189
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Measuring systems from Renishaw (e.g. RGH22B)
The RGH22B measuring system from Renishaw (grid division = 20
µ
m)
only has connections which are compatible to Heidenhain from serial
number G69289 onwards. For earlier sensor heads, the zero mark can-
not be evaluated.
As the reference mark for the Renishaw RGH22B has a direction–de-
pendent position, with control cables BID and DIR, the encoder must
be parameterized, so that the reference mark is only output in one di-
rection.
The direction (positive/negative) depends on the geometrical arrange-
ment at the machine and the reference point approach direction.
Table 4-13
Signal and pin assignments, signal marshaling
Signal
Cable
color
Round
connec-
tor,
connected to
color
connec-
tor,
12–pin
+5 V
0 V
BID
Black
Pin 9
Reference mark in
both directions
Reference mark in
one direction
DIR
Orange
Pin 7
Positive directions
Negative direction
+5 V
Brown
Pin 12
0 V
White
Pin 10
The counting direction of the measuring system is positive if the sensor
head moves relative to the gold band in the cable outlet direction.
ËËËËËËËËËËËËËËËËËË
ÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖ
ÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖÖ
Gold band
Sensor head
Measuring
system
+
Fig. 4-19 Determining the counting direction for measuring systems from
Renishaw
Note
If the sensor head is mechanically connected to the primary section,
the cable outlet direction must be different. Otherwise, invert the actual
value!
Measuring systems from Zeiss (e.g. LIE 5)
Note
The positive counting direction of the linear measuring system from the
Zeiss company should be determined just like the measuring system
RGH22B from Renishaw (refer to Fig. 4-19).
4 Commissioning