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PX 30 and PX 120 Operating Manual
Safety Regulations
General Safety Regulations
• Electrical connections must be made by a qualified electrical engineer
who is familiar with the operating manual and the valid regulations for
safety in the workplace. VDE and local regulations must be observed, in
particular with regard to safety.
• It is important to keep within the permitted operating temperature range.
• Do not open the unit, otherwise all warranty becomes void. Units
requiring repair must be returned to Pilz.
• The correct function of the unit is guaranteed only for the operating
modes specified in the operating manual. Incorrect connections may
damage or destroy the unit or machinery.
Unit-Specific Safety Regulations
You must comply with the following safety regulations in order to ensure
the correct operation of your unit:
• When selecting where to install your display, please remember to keep
as large a distance as possible between the unit and any
electromagnetic fields. This is especially important when frequency
converters are nearby. We also recommend you use a bulkhead to
separate the display from any source of interference.
• Inductive components built into the surrounding area (eg. contactor, relay
and solenoid valve coils), must be wired with an RC-network, especially if
they are fed from the same source.
• Data and power lines should be installed separately to avoid capacitive
and inductive transmission (recommended minimum distance = 10 cm/
3.94")!
• To avoid the build-up of heat, a distance of 10 cm/3.94" should be main-
tained all round the unit.
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