HEIDENHAIN MANUALplus 620 Technical Manual page 207

X31: UEC power
supply
January 2012 3.8 UxC 11x (FS): Power Supply and Motor Connection
For more information about the controller groups of the UEC 11x (FS), see
"Configuring the Controller Unit and Drive Motors" on page 1044.
Danger
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.
Note
EN 61800-5-1 requires a non-detachable connection to the line power sup-
ply.
Note
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.
207