As soon as the temperwature warning threshold (145°C) is exceeded, warnig E251 is generated and the drive complies with the command value. This state can last infinitely without a powering down occurring. Not until the temperature error threshold is exceeded will an immediate powering down take place.
The motor became overloaded. The effective torque required of the motor was above the allowable standstill continuous torque for too long. Remedy: Check the installation of the motor. For systems which have been in use for a long time, check to see if the drive conditions have changed (in regards to pollution, friction, components which have been moved, etc).
Target Position Out of Range
If a position is entered which would exceed the target position, it will not be accepted. With “command controlled operation", the drive will not move. Cause: 1. Position limit value monitor was activated 2. In the "Drive Internal Interpolation" operating mode, the S-0-0258, Target Position will be checked to determine if it’s in the possible travel range of the drive. 3. In the "Command Controlled Operation" operating mode, the target position of the selected process block will be checked to see if it lies within the travel range. The possible travel range is defined through the two parameters S-0-0049 Position Limit Positive and S-0-0050, Position Limit Nega-tive.
Not Homed
Description: If "Absolute Positioning Commands" are selected while in "Command Controlled Operation" the control drive must be homed. If this is not the case, an absolute position cannot be reached. The drive rejects this positioning command and stops. The warning E254 will be given. Cause: Absolute positioning command was selected without the drive being referenced. Remedy: 1. Reference the drive 2. Select "Relative Positioning Command"
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