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2 connecting the line voltage, 3 electrostatic discharge, 4 connecting encoders – HEIDENHAIN ND 200 User Manual

Page 19

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ND 200

Installation Instructions

en

21

4.2

Connecting the line voltage

WARNING

Risk of electric shock!
Improper grounding of electrical devices involves a risk of

serious injury or death by electric shock.

Always use 3-wire power cables.
Make sure the ground wire is correctly connected to
the ground of the building's electrical installations.

WARNING

A risk of fire exists if a power cord not meeting minimum

specifications is used!

Use only power cables that fulfill or exceed the
specified minimum requirements.

Use the supplied power cable to connect the power
connection to a 3-wire grounded power outlet. For
information about the location of the power connection
on the rear panel, see "Rear panel", page 20

4.3

Electrostatic discharge

NOTICE

This product contains components

that can be destroyed by electro-

static discharge (ESD).

It is essential to observe the safety
precautions for handling ESD-sensiti-
ve components.
Never touch connector pins without
ensuring proper grounding.

4.4

Connecting encoders

Connections

Encoders are connected to the encoder inputs X1 (X2)

provided on the rear panel. For information on the location

of the connections, see "Rear panel", page 20.
The number and type of connections available for encoders

may vary depending on the type of unit.

Connecting the encoder cables

Connect the cables of the encoders tightly to the
respective connections on the rear panel.
If the cable connectors include mounting screws, do not
overtighten them.

Vacant pins or wires must not be used.

Pin layout X1 (X2)

For pin layout for 11 µA

PP

, 1 V

PP

and EnDat 2.1, see "H" in

the Appendix.
Only ND 287: For pin layout if an analog module is being

used, see "M" in the Appendix.