Drive: Closed-Loop Control With Encoder Is Not Possible; Drive: It Is Not Possible To Change The Direction Of Rotation; Drive: Power Unit Data Set Pds Not Configured - Siemens Sinamics S120 Diagnostic Manual

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SINAMICS alarms

<location>Drive: Closed-loop control with encoder is not possible as the encoder has

not been unparked

Message value:

Drive object:

SERVO_COMBI, SERVO_SINUMERIK828

NONE (OFF1, OFF2, OFF3)

Acknowledge:

The changeover to closed-loop control with encoder is not possible as the encoder has not been unparked.

- check whether the encoder firmware supports the "parking" function (r0481.6 = 1).

- upgrade the firmware.

For long-stator motors (p3870.0 = 1), the following applies:

The encoder must have completed the unparking procedure (r3875.0 = 1) before a changeover can be made to

closed-loop control with encoder. The encoder is unparked with a 0/1 edge at BI: p3876 and remains unparked until

a 0 signal is again present.

<location>Drive: It is not possible to change the direction of rotation with the pulses

Message value:

Drive object:

SERVO_COMBI, SERVO_SINUMERIK828

Acknowledge:

A drive data set was selected - with the pulses enabled - which has a different parameterized direction of rotation

It is only possible to change the motor direction of rotation using p1821 when the pulses are inhibited.

- change over the drive data set with the pulses inhibited.

- ensure that the changeover to a drive data set does not result in the motor direction of rotation being changed (i.e.

for these drive data sets, the same value must be in p1821).

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Sinumerik 828d