Overview Of The Type And Configuration Of Reference Marks Of Incremental Measuring Systems - Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS Functional Description

ECODRIVE03-FL*-04VRS
Overview of the Type and Configuration of Reference Marks of
Incremental Measuring Systems
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
For better understanding, the measuring systems can be divided into 4
different groups according to the type and configuration of their reference
marks.
• Type 1: Measuring systems with an absolute single-turn range, such
as the single-turn DSF or resolver. These measuring systems have an
absolute range of one encoder revolution or fractions of one encoder
revolution (resolver).
Typical applications are
• the encoders for the MHD, MKD and MKE motors
• the GDS measurement system
• the single-turn encoder with EnDat interface by Heidenhain
• Type 2: Incremental rotary measuring systems with a reference mark
for each encoder rotation, such as the ROD or RON types by
Heidenhain.
• Type 3: Incremental linear measuring systems with one or more
reference marks, such as the LS linear scales by Heidenhain.
• Type 4: Incremental measuring systems with distance-coded
reference marks, such as the LSxxxC linear scales by Heidenhain.
Drive-internal detection of the configuration of the reference marks is
based on the settings in the relevant parameter — C002, Feedback 1
type (for motor encoders) or C005, Feedback 2 type (for optional
encoders).
In these parameters, bit 0 determines whether a rotary or a linear
measurement system is set, and bit 1 determines whether the
measurement system has distance-coded reference marks.
C002 Position Feedback 1 Type
01 0 0 0
Encoder Type
0 = rotary
1 = linear
Distance-Coded Measurement System:
0 = no distance-coded measurement system
1 = distance-coded reference marks
Direction:
0 = not inverted
1 = inverted
Absolute Measurement:
x0 = no absolute measurement possible
01 = absolute measurement possible and active
11 = Absolute measurement possible, but not active
Note: For measuring systems with their own data memory (type 1),
these settings are automatic.
Encoder is treated as absolute
8-5
Functions