HEIDENHAIN ND 780 Installation - Manual (Page 11)

11
ND 780
Installation Instructions
6. Installation
The safety of any system incorporating the use of this product is the
responsibility of the assembler or installer of the system.
Interfaces
Rear
1
Power switch
2
Power connector
3
Replaceable fuse holder
4
Grounding Edge Finder
5
KT 130 Edge Finder and IOB 49
6
Encoder inputs: X1, X2, X3 axis
interface encoders 11 μA
PP
and
1 V
PP
.
7
RS-232-C: PC Communication.
8
Earth (ground) terminal
see warning below
Power cord
L: Line voltage (brown)
N: Neutral (blue)
Protective conductor (ground)
terminal (green/yellow)
3-conductor (grounded)
Min. cable cross section: 0.75 mm
2
Max. cable length: 3 m
Power cord
Notice
Do not engage, or disengage any connections while the product is under
power. Damage to internal components may result.
Notice
It is necessary to connect the earth (ground) terminal on the rear of the product
to the star point of machine ground. Minimum cross section of the connecting
wire: 6 mm
2
. Never use this equipment without proper grounding.
Electrical connection
Warning! Risk of electrical shock
A risk of electrical shock exists if this product is not properly grounded.
To avoid the hazard, always use a 3-conductor (grounded) power cord and
ensure the ground is properly wired to the building installation.
Warning! Risk of fi re
A risk of fi re exists if a power cord not meeting minimum specifi cations is
used.
To avoid the hazard, always use power cords that meet or exceed the minimum
listed specifi cations.
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