Encoder/safety encoder

The brake test requires a motor encoder as encoder feedback to the inverter. If the brake test is evaluated in a safety-related system, e.g. in accordance with the Performance Level (PL), the encoder must be designed as a safety encoder. You can select the following encoders from SEW-EURODRIVE in the "Assist CS..." parameterization tool:

  • ES7S/EG7S/EK8S
  • AS7W/AG7W/AK8W
  • AK0H/AK1H
  • EK8Z/AK8Z

In addition to the incremental sin/cos signals, the A.7W, AK8W and AK.H encoders/safety encoders also provide multi-turn absolute value signals (RS485 or HIPERFACE®). The CS..A safety option uses the sin/cos signals of the respective encoder for the brake test.