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，則出現錯誤消息。
The drive becomes torque-free and an optional brake is immediately activated.
驅動器無扭矩，可選制動器立即啟動。

Cause:原因：
1. Defective feedback cable.
反饋電纜有缺陷。
2. Defective feedback.
反饋有缺陷。

Remedy:解決措施：
For 1. Check the feedback cable.
檢查反饋電纜。
Lay the power cables separate from the feedback cable.
將電源電纜與反饋電纜分開放置。
The cable shield must be connected to the drive controller.
電纜屏蔽必須連接到驅動器控制器。
(See also project reference of the drive control).
（另請參見驅動器控件的項目參考）。
For 2. Exchange motor.更換電機。