17 – 276 HEIDENHAIN Service Manual iTNC 530
17.6 Power Supply for the Display Units
Power supply with basic insulation in accordance with EN 50 178:
Power consumption: BF 120: 15 W
BF 150: 45 W
Errors The fan does not run.
The screen remains black.
Troubleshooting See “Visual Display Unit” on page 21 – 355.
Connecting terminal X1 Pin layout
1 +24 V
20 V