HEIDENHAIN ITNC 530 - UV 106 (B) Power Supply Unit

27 – 492 HEIDENHAIN Service Manual iTNC 530
27.3.3 UV 106 (B) power supply unit
Connection
overview
UV 106 (B)
X31:
Power supply of the
UV 106 (B)
Supply voltage: 400 V ± 10%
Pin layout:
Equipment ground (YL/GY) ≥ 10 mm
2
Connecting terminal Pin layout
U Phase 1 / 400 Vac ±10% / 50 Hz to 60 Hz
V Phase 2 / 400 Vac ±10% / 50 Hz to 60 Hz
Protective ground (YL/GN),
≥ 10 mm
2
Connecting leads
Wire cross section: 1.5 mm
2
(AWG 16)
Tightening torque:
for the connecting terminals
0.7 Nm (6.5 to 7 lb-ibn)
Grounding terminal:
≥ 10 mm
2
(AWG 6)
Strain relief:
Ensure that the connecting cables are not subject to excessive strain.