Siemens SINAMICS G220 - Checking the Encoder Signal

p0344[0...n] Motor weight (for the thermal motor model) [kg]
r0345[0...n] Nominal motor starting time [s]
p0346[0...n] Motor excitation build-up time [s]
p0347[0...n] Motor de-excitation time [s]
p0350[0...n] Motor stator resistance cold [ohm]
p0351[0...n] Motor stator resistance 20 °C [ohm]
p0352[0...n] Cable resistance [ohm]
p0353[0...n] Motor series inductance [mH]
p0354[0...n] Motor rotor resistance cold / damping resistance d axis [ohm]
p0356[0...n] Motor stator leakage inductance [mH]
p0357[0...n] Motor stator inductance d axis [mH]
p0358[0...n] Motor rotor leakage inductance / damping inductance d axis [mH]
p0360[0...n] Motor magnetizing inductance/magn. inductance d axis
saturated
[mH]
p1300[0...n] Open-loop/closed-loop control type 
c1511[0...n] Supplementary torque 1 
p1520[0...n] Torque limit upper [Nm]
p1521[0...n] Torque limit lower [Nm]
p1530[0...n] Power limit motoring [kW]
p1531[0...n] Power limit regenerative [kW]
14.10.8 Checking the encoder signal
Overview
If you use an encoder to measure the speed, you should check the encoder signal before the
encoder feedback is active.
Requirement
The encoder feedback is not yet active.
Procedure
1. Set the control mode "Encoderless speed control": p1300=20.
2. Switch-on the motor with an average speed.
3. Compare parameters r0061 (speed encoder signal in rpm) and r0021 (calculated speed in
rpm) regarding the sign and absolute value.
4. If the signs do not match, invert the speed encoder signal: Set p0410=1.
5. If the absolute values of the two values do not match, check the setting of p0408 and the
encoder wiring.
You have ensured that the scaling and polarity of the encoder signal are correct.
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
556 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB