702：Rotor position at synchronous machine is unknown

同步电机的转子位置未知

The rotor position of the synchronous drive is unknown.

同步驱动器的转子位置未知。

Either the rotor position offset or the absolute position could not be read from the encoder or the synchronous drive is used with a incremental encoder and a rotor position identification has not been executed yet.

无法从编码器读取转子位置偏移或绝对位置，或者同步驱动器与增量编码器一起使用，并且尚未执行转子位置识别。

The error is also set if the encoder is switched off but the motor configuration needs an encoder.

如果编码器关闭，但电机配置需要编码器，也会设置错误。

Reset of the error is possible.

可以重置错误。

The error is set again if the cause of the error has not been corrected.

如果错误原因尚未纠正，则会再次设置错误。

罗兰印刷机鲍米勒驱动器故障修理：

Cause: 原因：

For some encoders, the absolute position can partially no longer

be read out due to contamination of the code dial. 对于某些编码器，绝对位置可能部分不再由于码盘受到污染而被读出。

Remedy: 补救措施：

Replace encoder. 更换编码器。

Cause: 原因

Encoder cable defective

编码器电缆有缺陷

Remedy: 补救措施：

Checking of encoder cable, and replacements if applicable

检查编码器电缆，如有更换

Cause: 原因：

Encoder defective.编码器有缺陷。

Remedy: 补救措施：

Replace encoder and carry out new notch angle

更换编码器并执行新的缺口角度