Siemens Sinamics s120 Commissioning Manual page 279

Moving the axis by the converter
The technique is particularly suitable for large and poorly accessible axes as well as rotary
axes with a holding brake.
For this technique, the axis must be moved with a defined speed or velocity. The speed for
the rotary encoder is 60 rpm or the velocity for the linear encoder is 1.5 m * rpm.
Precondition
The drive has been completely commissioned and can be traveled. If the SSI encoder is
used as motor encoder, the control type must have been set previously to "encoderless"
(p1300).
Once the encoder has been identified, the pulses are locked again automatically.
Procedure
Note
The "x" serves as placeholder for the encoder number in the following description. Encoder
numbers 1, 2 or 3 are possible.
1. Proceed as follows:
– p0010:= 4 (start encoder commissioning)
– p0400[x] = 9999 (user-defined encoder)
2. Set the not identified properties (linear/rotary, 5 V / 24 V) and the "SSI encoder" property:
– p0404[x].0 = 0: Rotary
– p0404[x].0 = 1: Linear
– p0404[x].9 = 1: SSI encoder
– p0404[x].20 = 1: Voltage level 5 V
– p0404[x].21 = 1: Voltage level 24 V
3. Start the encoder identification using p0400[x] = 10100 (identify encoder (waiting)).
4. Depending on the technique, perform a defined movement (see "Moving the axis
manually" or "Moving the axis by the converter" technique).
5. After the identification, check the encoder configuration.
The associated parameters are listed in the Section "Overview of the important
parameters" (Page 280).
– In particular, compare the parameters of the encoder lines or spacing with the
– If special bits are identified in the SSI telegram (p0448), the first special bit is
STARTER Commissioning Manual
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5
documentation of the encoder, and correct these parameters if necessary. For rotary
encoder, these are p0408, p0421 and p0423. For linear encoders, these are p0407
and p0422.
configured as a fault bit (p0434) and the second special bit as an alarm bit (p0435).
Compare this setting with the documentation of the encoder, and correct the above
parameters if necessary.
Commissioning
3.19 Commissioning of SSI encoders
279