Absolute value encoder initialisation error at X8

What does Sd7 mean?

The absolute value encoder at X8 has an initialisation error, is defective, or is not sending data. This may also occur if the encoder constant (C0420) for C0025=309 is altered. An uninitialised encoder can lead to uncontrolled drive movements.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the absolute value encoder for correct function.

2. 4

   Set voltage supply via C0421 to 8.0 V.

3. 5

   Verify a Stegmann encoder is connected.

4. 6

   Repeat rotor position adjustment via C0095 = 1 after fault elimination.