Safety
3-2 Operating Manual: PSS 3075-3 Series
The following is deemed improper use:
• Any component, technical or electrical modification to the safety system
• Use of the safety system outside the areas described in this manual
• Use of the safety system outside the documented technical details (see
chapter entitled “Technical Details”).
Intended use includes making the installation EMC-compliant. Please
observe the guidelines given in this manual and in the “Safety Manual” for
the PSS-range. The “Safety Manual” also includes check lists designed to
help you with the safety-related planning, construction and operation of a
plant.
Product modifications
Details of the changes made to a unit from one version to the next are
described in the “Product Modifications” file. This file can be found on the
“Documentation PSS-Range/SafetyBUS p” CD or on the Internet
(www.pilz.com) with the unit’s documentation.
Categories in accordance with EN 954-1
WARNING!
Please note: To achieve the corresponding category or requirement class,
the whole system including all safety-related components (parts, devices,
user program etc.) must be included in the assessment. For this reason,
Pilz cannot accept liability for the correct classification into a category or
requirement class.
Digital inputs (DI2)
Depending on the application area and its respective regulations, the
inputs may be used without test pulses for applications up to category 3,
in accordance with EN 954-1. The possibility of a short circuit occurring in
the external wiring between different inputs or against L+ must be
eliminated through appropriate wiring.
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