Uv 120 Power Supply Unit - HEIDENHAIN TNC 410 M Technical Manual

6.1.1 UV 120 Power Supply Unit

6 – 4
Danger
Do not engage or disengage any connecting elements while the unit is
under power!
X70
X69
X79
7
X71
...
X72
1
X31
HEIDENHAIN Technical Manual for Inverter Systems and Motors
Main contactor
Power supply for the control
(in double for lengths over 0.5 m)
Unit bus
Safety relay for spindle (pulse disable for the spindle)
Safety relay for the axes (pulse disable for all axes)
Supply voltage for inverter (3 x 400 V ±10 %)
Equipment ground