HEIDENHAIN iTNC 530 Service Manual page 489

Supply voltage: 400 V ± 10%
X31:
Power supply unit
Pin layout:
for UV 105
Connecting terminal
U
V
The UV 105 is powered with dc-link voltage U
Power supply of the
UV 105 with U
Z
Connection to connector X69/X169 of the CC, See "X69: NC power supply and control signals"
X69:
on page 27 – 481.
NC supply voltage
and control signals
Pin layout:
X74:
5 V connection
of the UV 105
Wire color of 5-V connection
Black
Red
July 2010
€
a. Connecting cable 1.5 mm
Note
If you are using non-HEIDENHAIN inverter systems or regenerative HEIDENHAIN inverter
systems, you must connect the supply voltage to the terminals U and V via an isolating
transformer (300 VA, basic insulation as per EN 50 178 and VDE 0550).
There is no need for an isolating transformer if non-regenerative HEIDENHAIN inverter
systems are used.
DANGER
Do not ground this isolating transformer on the secondary side!
The isolating transformer decouples the dc-link voltage from ground. Grounding the isolating
transformer on the secondary side leads to an addition of the dc-link voltage and the supply
voltage. This would overload and thus destroy the UV 105.
the conductor bars (for HEIDENHAIN inverter systems).
a cable which is connected instead of the conductor bar (for non-HEIDENHAIN inverter
systems).
Note
Operation with HEIDENHAIN inverters:
For the NC to be able to evaluate the status signals of the compact inverters or the power
supply units, connector X69 must be connected by ribbon cable with X69 of the UV 105.
Operation with non-HEIDENHAIN inverters:
Since status signals from non-HEIDENHAIN inverters are not available or are not compatible
to HEIDENHAIN systems, the adapter (Id. Nr. 349 211-01) must be connected to X69 on the
UV 105.
DANGER
For mounting the UV 105, the additional 5V lines must be connected with the correct
polarity!
Otherwise there will be a short circuit of these lines on the 5V ribbon wires of X69.
Pin layout
a
U
a
V
Equipment ground (YL/GY),
2
≥ 10 mm
2
through
Z
5 V terminal on CC 42x (B)
0 V
+5 V
27 – 489