27 – 494 HEIDENHAIN Service Manual iTNC 530
27.4.2 Pin layouts
X1:
Power supply
Power consumption:BF 120: 15 W
BF 150: 45 W
X2:
Connection of the
BF 120 to the MC
See “X49: BF 120 flat-panel display” on page 27 – 478.
X2:
Connection of the
BF 150 to the MC
See “X149: BF 150 flat-panel display” on page 27 – 485.
X3:
Connection of the
VDU soft keys to
the iTNC operating
panel
Connecting terminal X1 Pin layout
1 +24 V
20 V
The power supply must have basic insulation as per EN 61800-5-1.
Connector (male) 9-pin Pin layout
1SL0
2SL1
3SL2
4SL3
5 Do not assign
6 RL15
7 RL14
8 RL13
9 RL12
The interface complies with the requirements of EN 61800-5-1 for "protective extra-low
voltage" (PELV).
Only units that comply with the requirements of EN 61800-5-1 for "protective extra-low
voltage" (PELV) may be connected.
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