Actual Value Conditioning; Encoder Types - Siemens Sinumerik 840D sl Function Manual

Basics on the safety functions integrated in the system/drive

5.4 Actual value conditioning

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
(signal A is shifted with respect to B through 90°), e.g.: EQN 1325, LC 181
3. Motor encoder (IMS) with integrated DRIVE--CLiQ interface, with the properties
corresponding to 1st or 2nd
4. Direct encoder (DMS, e.g. linear scale) with integrated DRIVE--CLiQ interface,
with the properties corresponding to 1. or 2.
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
*A list of the Siemens encoders and motors permissible for Safety Integrated functions can
be obtained from your local SIEMENS contact partner.
5-90
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Combining encoder types
at the load at the motor
x
x x
x
x
Absolute encoder
at the load
x
x
© Siemens AG 2015 All Rights Reserved
10/15
Remarks
1--encoder system*
1--encoder system*
2--encoder system*
2--encoder system*
2--encoder system*
2--encoder system*