Actual Value Conditioning - Siemens SINUMERIK 840D sl Function Manual

03.06
5.4

Actual value conditioning

5.4.1 Encoder types
Basic types
The following basic encoder types can be used with a drive module to implement
safety-related operation:
1. Incremental encoder via a Sensor Module and DRIVE-CLiQ
with sinusoidal voltage signals A and B (signal A is shifted with respect to B
through 90° and a reference signal R, e.g.: ERN 1387, LS 186, SIZAG2
2. Absolute encoder via Sensor Module and DRIVE-CLiQ
with an EnDat interface and incremental sinusoidal voltage signals A and B (si-
gnal A is shifted with respect to B through 90°), e.g.: EQN 1325, LC 181
3. Motor encoder (IMS) with integrated DRIVE-CLiQ interface
4. Direct encoder (DMS, e.g. linear scale) with integrated DRIVE-CLiQ interface
Combining encoder types
Various combinations can be derived from the basic types.
Table 5-1
Incremental encoder
at the
motor
x
x
x
Note: x –> encoder connection
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Basics on the Safety Functions Integrated in the System/Drive
Combining encoder types
at the load at the motor
x
x x
x
x
5.4 Actual value conditioning
Absolute encoder
at the load
x
x
Remarks
1-encoder system
1-encoder system
2-encoder system
2-encoder system
2-encoder system
2-encoder system
5-83