2 warranty and liability, 3 disposal, 3 unit-specific safety regulations – Pilz PMI 509 User Manual
Page 12: 1 installation site, 2 measures to protect against interference, 3 supply voltage, Warranty and liability, Disposal, Unitspecific safety regulations, Installation site

Safety
Operating Manual PMI 5
1002241EN05
12
3.2.2
Warranty and liability
All claims to warranty and liability will be rendered invalid if
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The product was used contrary to the purpose for which it is intended
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Damage can be attributed to not having followed the guidelines in the manual
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Operating personnel are not suitably qualified
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Any type of modification has been made (e.g. exchanging components on the PCB
boards, soldering work etc.).
3.2.3
Disposal
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When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).
3.3
Unitspecific safety regulations
Before you install or commission the system, you should refer to any guidelines laid down
by the control manufacturer or operator.
3.3.1
Installation site
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Do not position PMI close to highly flammable materials.
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When installing the unit within a control cabinet, you must ensure the ventilation slots
are not obstructed, otherwise the unit could be damaged through overheating.
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Protect the unit from direct sunlight and dust.
3.3.2
Measures to protect against interference
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If necessary, use bulkhead separators to protect the unit from sources of interference.
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Inductive loads within the environment (e.g. contactor, relay and solenoid valve coils)
should be wired using suppression elements (e.g. RC elements). This is particularly im
portant if these inductive loads are fed from the same supply.
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The power cables and the data cables should be physically separated from each other
in their own conduits (recommended minimum distance: 10 cm/3.94"). This will avoid in
ductive and capacitive interference.
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The prescribed earth point
for the functional earth guarantees compliance with
noise immunity requirements.
Connect the functional earth to the central earth point in star form. A cable cross sec
tion of at least 1.5 mm² should be used for the connection. Connections should be kept
as short as possible.
3.3.3
Supply voltage
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The supply voltage must be +24 V DC