Checking The Encoder Signal - Siemens SINAMICS G220 Operating Instructions Manual

Functions
14.10 Closed-loop drive control
p0344[0...n]
r0345[0...n]
p0346[0...n]
p0347[0...n]
p0350[0...n]
p0351[0...n]
p0352[0...n]
p0353[0...n]
p0354[0...n]
p0356[0...n]
p0357[0...n]
p0358[0...n]
p0360[0...n]
p1300[0...n]
c1511[0...n]
p1520[0...n]
p1521[0...n]
p1530[0...n]
p1531[0...n]
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.
556
Motor weight (for the thermal motor model)
Nominal motor starting time
Motor excitation build-up time
Motor de-excitation time
Motor stator resistance cold
Motor stator resistance 20 °C
Cable resistance
Motor series inductance
Motor rotor resistance cold / damping resistance d axis
Motor stator leakage inductance
Motor stator inductance d axis
Motor rotor leakage inductance / damping inductance d axis
Motor magnetizing inductance/magn. inductance d axis
saturated
Open-loop/closed-loop control type
Supplementary torque 1
Torque limit upper
Torque limit lower
Power limit motoring
Power limit regenerative
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
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SINAMICS G220 converter