Encoder Dirty Signal - Siemens SINAMICS S120 Function Manual

Basic functions
6.18 Encoder diagnostics
6.18.2

Encoder dirty signal

Some encoders have an additional output, which switches from "high" to "low", if the
evaluation electronics in the encoder can no longer determine a reliable position.
In order to inform you about this, the drive only outputs alarm A3x470
used.
x = encoder number (x = 1, 2 or 3)
1)
Commissioning
Connect the corresponding encoder signal with the CTRL input (monitoring signal) of the
device. Parameterization is not required.
Note
The input is automatically set to a high level if a wire is broken: As a consequence, for a
broken wire, the encoder is considered to be "good".
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p0437[0...n]
322
Sensor Module extended configuration
1)
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
when an SMC30 is
Drive functions