System manual CECX / Digital input module CECX-D-16E
CECX-II 15-2
CAUTION
• CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in damage to
property.
• This symbol reminds you of the possible consequences of touching
electrostatically sensitive components.
Information
on use of equipment and useful practical tips are identified by the “Informa-
tion” symbol. Notes do not contain any information that draws attention to
potentially dangerous or harmful functions.
15.2.2 General safety notes
z The unit is defined as "open type" equipment (according to UL 508) or
as "offenes Betriebsmittel" (according to EN 61131) and must therefore
be installed in a switch cabinet.
z The system manual is additionally required for programming of the
module.
CAUTION
Improper use of the assembly or the control system leads to irreparable
damage!
• Turn off the power supply before inserting or removing the module.
Otherwise, the module can be destroyed or undefined signal states can
lead to damage of the control system.
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