PLS
6. Tests
6.1 Testing the PLS
These tests are required in order to check that the safety devices are
functioning correctly and are properly incorporated into the ma-
chine/system control, as well as to reveal any alterations or manipu-
lations in the system.
The following instructions must be observed to ensure proper use:
Installation and electrical connection by specialist personnel only.
A specialist is a person who, on account of his specialist training and
experience, has sufficient expertise in the field of the power-driven
machinery to be tested, and who is sufficiently familiar with the perti-
nent legal work-safety regulations, accident-prevention regulations,
directives and generally recognized engineering rules (e.g. DIN
standards, VDE specifications, technical rules of other EC member
states) to be able assess the safe condition of the power-driven ma-
chinery. These will generally be specialists employed by the manu-
facturer of the NCSD, or such persons who have received appropri-
ate training from the manufacturer of the NCSD, have been primarily
concerned with the testing of NCSDs and are designated by the
owner of the NCSD.
1. Testing prior to first commissioning of the safety
device on the machinery by specialist personnel:
- Testing prior to first commissioning serves to verify compliance with
the safety requirements of the national/international regulations,
and in particular the Machine or Machinery Usage Directive (EC
Declaration of Conformity).
- Testing of the effectiveness of the safety device on the machine in
all operating modes that can be set on the machine in accordance
with the enclosed checklist.
- The operating personnel of the machine protected by the safety
device must receive instruction from specialists working for the
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8 009 810/OA87/13-09-04 Operating Instruction • PLS © SICK AG • Industrial Safety Systems • Germany • All rights reserved
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