HEIDENHAIN ND 522 - Manual (Page 71)

ND 522/523 71
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Installation,
and
Electr
ical
Connection
Electrical requirements
Voltage AC 100 V ... 240 V (-15 % ... +10 %)
Power Max. 54 W
Frequency 47 Hz ... 63 Hz (±3 Hz)
FuseT 500 mA/250 V, 5 mm x 20 mm, Slo-Blo (line, and neutral fused)
Environmental
Protection (EN 60529) IP 40 back panel
IP 54 front panel
Operating temperature 0° to 45°C (32° to 113°F)
Storage temperature -20° to 70°C (-4° to 158°F)
Mechanical weight 2.6 kg (5.8 lb.)
Wiring the power connector
Hot leads: L, and N
Ground:
Minimum diameter of power connection cable: 0.75 mm 2 .
Protective earthing (grounding)
Preventative maintenance
No special preventative maintenance is necessary. For cleaning, wipe
lightly with a dry lint-free cloth.
It is necessary to connect the protective ground terminal on
the rear panel to the star point of machine ground.
Minimum cross-section of the connecting wire: 6 mm 2 .