Connecting The Uv 102 Power Supply Unit - HEIDENHAIN TNC 410 M Technical Manual

5.8 Connecting the UV 102 Power Supply Unit

X31: Supply voltage
5 – 68
The UV 102 has a 50-line ribbon cable for the power supply to the LE 426 M
and five 20-line ribbon cables for the PWM signals of the axes and the spindle
from the LE.
Connection:
Connecting
terminals
U1
U2
–U
Z
+U
Z
Note
The voltage at the terminals U1 and U2 must be supplied via an isolating
transformer (250 VA, functional insulation or basic insulation in accordance
with IEC 61800-5-1, or protective insulation as per VDE 0550).
HEIDENHAIN Technical Manual for Inverter Systems and Motors
Assignment
Equipment ground (YL/GN)
Phase 1 / 400 V~ ±10% / 50 Hz to 60 Hz
Phase 2 / 400 V~ ±10% / 50 Hz to 60 Hz
DC-link voltage –
DC-link voltage +
Cable / single conductor (HT wire):
Wire cross section: 1.5 mm
Line fuse:
6.3 A (gR) Siemens Sitor type
Grounding terminal:
2
≥ 10 mm
(AWG 6)
Tightening torque for connecting terminals:
0.7 Nm (6.5 - 7 lbs/in)
2
(AWG 16)