December 2001 General Information 3 – 5
3 Mounting and Electrical Installation
3.1 General Information
3.1.1 Degrees of Protection
The following components fulfill the requirements for IP54 (dust and splash-
proof protection).
n Visual display unit (when properly installed)
n Keyboard unit (when properly installed)
n Machine operating panel
n Handwheel
3.1.2 Electromagnetic Compatibility
Intended area of
application
This device complies with EN 61800-3, and fulfills the requirements of an
industrial low-voltage main power line. It is not designed to be used on a public
low-voltage main power line from which households are supplied. This device
can cause high-frequency disturbances.
Protect your equipment from interference by observing the following rules and
recommendations.
Likely sources of
interference
Noise is mainly produced by capacitive and inductive coupling from electrical
conductors or from device inputs/outputs, such as:
n Strong magnetic fields from transformers or electric motors
n Relays, contactors and solenoid valves
n High-frequency equipment, pulse equipment and stray magnetic fields from
switch-mode power supplies
n Power lines and leads to the above equipment
Protective
measures
n A minimum distance of 20 cm from the logic unit and its leads to interfering
equipment
n A minimum distance of 10 cm from the logic unit and its leads to cables that
carry interference signals. For cables in metallic ducting, adequate
decoupling can be achieved by using a grounded separation shield.
n Shielding according to EN 50 178
n Potential compensating lines Ø 6 mm
2
(see Grounding Diagram at end of
chapter)
n Use only genuine HEIDENHAIN cables, connectors and couplings
Warning
Keep the following in mind during mounting and electrical installation:
n National regulations for power installations
n Interference and noise immunity
n Conditions of operation
n Mounting attitude
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