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力士樂kdv系列伺服驅(qū)動器維修：F822 Motor Encoder Failure: Signal too Small電機編碼器故障：信號太小。Description:說明：The motor encoder signals are monitored. 監(jiān)測電機編碼器信號。

If the signal amplitudes as measured via AK1 and AK2 are outside of the allowable region between Uss = 12.0V and Uss = 18.0 V, then the error message appears. 如果通過AK1和AK2測量的信號幅度在Uss=12.0V和Uss=18.0V之間的允許范圍之外，則出現(xiàn)錯誤消息。

The drive becomes torque-free and an optional brake is immediately activated.驅(qū)動器無扭矩，可選制動器立即啟動。

Cause:

1. Defective feedback cable.

反饋電纜有缺陷

2. Defective feedback.

反饋有缺陷。

Remedy:補救措施：

For 1. Check the feedback cable.Lay the power cables separate from the feedback cable..檢查反饋電纜。將電源電纜與反饋電纜分開敷設(shè)。

The cable shield must be connected to the drive controller.

(See also project reference of the drive control).

電纜屏蔽必須連接到驅(qū)動器控制器。（另請參見驅(qū)動控制的項目參考）。

For 2. Exchange motor.更換電機。

Note: This error can only be cleared in parametrization mode (phase

2). As a result of this error, the encoder emulation is switched off.

注：此錯誤只能在參數(shù)化模式（第2階段）下清除。由于此錯誤，編碼器仿真被關(guān)閉。