HEIDENHAIN TNC 410 M Technical Manual page 386

X31: Power supply
Power supply
L1 400 V~ ± 10%
50 Hz to 60 Hz
L2
L3
PE
6 – 60
The dc-link voltage U
Z
The regenerative power supply units must be connected to the main power
line via a commutating reactor and a line filter. This is necessary for keeping
the main line free of disruptive higher harmonics.
For power connection Page 4–30.
HEIDENHAIN Technical Manual for Inverter Systems and Motors
is 650 V–.