January 2012 3.8 UxC 11x (FS): Power Supply and Motor Connection 207
X31: UEC power
supply
For more information about the controller groups of the UEC 11x (FS), see
“Configuring the Controller Unit and Drive Motors" on page 1044.
Danger of electrical shock!
The UEC 11x controller unit must be opened only by HEIDENHAIN service
engineers.
Do not engage or disengage any terminals while they are under power.
EN 61800-5-1 requires a non-detachable connection to the line power sup-
ply.
If the power supply is other than 400 V/ 480 V, an autotransformer is
required. It must comply at least with the connection specifications of the
UEC 11x.
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