HEIDENHAIN NPD 281 v.3 - Manual (Page 19)

19
Power Connection
Electric shock danger
Unplug the power cord before opening the
housing. Connect the grounding conductor.
Do not interrupt the grounding conductor.
Potential component damage
Do not engage or disengage any connections
unless the power is off. Only use original type
fuses.
To increase the noise immunity, it is
recommended that you attach the ground terminal
to, for example, the central ground point of the
machine.
(Minimum cross section 6 mm
2. )
Line voltage range: 100 Vac to 240 Vac
A voltage selector is therefore not necessary.
Minimum cross section of the power cord: 0.75 mm 2
ND 281
The rear panel of this unit contains a connecting jack for a
power cord with Euro connector (power cord supplied with
the delivery).
NDP 281
The rear panel of this unit features a terminal (X51) for power
connection (see illustration to the right). Be careful to wire
the connecting cable with the correct polarity.
Power Connection
NDP 281: Terminal for connecting the power cord
X 51
N L1
X51