E251 Motor Overtemperature Warning電機過(guò)熱警告
Description:說(shuō)明：
As soon as the temperwature warning threshold (145°C) is exceeded,
warnig E251 is generated and the drive complies with the command
value.一旦超過(guò)溫度警告閾值（145°C），warnig E251生成，驅動(dòng)器符合命令價(jià)值
This state can last infinitely without a powering down occurring.
這種狀態(tài)可以無(wú)限持續，而不會(huì )發(fā)生斷電。
Not until the temperature error threshold is exceeded will an immediate powering down take place.
直到超過(guò)溫度誤差閾值，才會(huì )立即斷電。
See also F219 Motor Overtemperature Shutdown
另請參閱F219電機過(guò)熱停機

Cause:原因：
The motor became overloaded.
電動(dòng)機過(guò)載了。
The effective torque required of the motor was above the allowable standstill continuous torque for too long.
電機所需的有效扭矩超過(guò)允許的靜止連續扭矩太長(cháng)時(shí)間。

Remedy:解決措施：
Check the installation of the motor.
檢查電機的安裝情況。
For systems which have been in use for a long time, check to see if the drive conditions have changed (inregards to pollution, friction, components which have been moved, etc).對于長(cháng)期使用的系統，檢查驅動(dòng)條件是否發(fā)生了變化（導致污染、摩擦、部件移動(dòng)等）。