Determining The Angular Commutation Offset / Maintaining The Tolerance - Siemens Sinamics s120 Commissioning Manual

Commissioning
3.13 Commissioning of SIMOTICS L-1FN3 linear motors
Table 3- 14 Parameterization in the expert list of the Terminal Module TM120
Parameter Input
p4100[0...3] TM120 temperature evaluation, sensor type
Sets the temperature evaluation of Terminal Module TM120.
This means that the temperature sensor type is selected and the evaluation is activated. The follow-
ing values are possible:
0: Evaluation deactivated
1: PTC thermistor
2: KTY84
4: Bimetal NC contact
6: PT1000
Check the temperature sensors in the same way as described for the SME12x Sensor
Module External (see section "Checking the temperature sensors for the Sensor Module
External SME12x"). Test each individual temperature channel by separating the connection.
3.13.6

Determining the angular commutation offset / maintaining the tolerance

NOTICE
Material damage as a result of an incorrectly commutated drive
When the system is commissioned for the first time or after an encoder/motor has been
replaced, it is possible that the drive could be incorrectly commutated if the angular
commutation offset has not yet been adjusted. Current is fed into the motor at the incorrect
time for an incorrectly commutated motor. This means it can perform inadvertent
movements. For example, it can turn with high speed in the wrong direction and so damage
a workpiece.
• Set the current limit using the p0640 parameter to 20% of p0323 (motor maximum
• Therefore, to complete commissioning, it is imperative that you check the angular
You can determine the pole position, required for synchronous motors, for the SIMOTICS L-
1FN3 linear motors using a software-based automatic pole position identification technique.
The following two techniques are suitable for all frame sizes of the SIMOTICS L-1FN3 linear
motors:
● The motion-based technique p1980 = 10
● The saturation-based technique (1st harmonic) p1980 = 1
Also refer to the information in Chapter "General information for the commutation setting"
(Page 185).
204
current).
commutation offset according to the following description.
STARTER Commissioning Manual
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5