Use and Maintenance Manual – Pressure-sensitive bumpers type GSBPS
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1
Introduction
This Manual should always be kept by the user in a safe and accessible place for further consultation by the
personnel.
Installation and maintenance procedures are to be carried out only by qualified, well trained personnel in all
safety procedures. The pressure-sensitive bumper is used as protection against the risk of accidents/injuries
which can be eliminated by switching off the electrical energy.
Global safety of either the machine and pressure-sensitive bumpers depends on the compatibility and
reciprocal integrity of these components.
Carefully take into consideration the risk assessment of the machine to protect in order to choose the correct
safety category in compliance with the requirements of the EN ISO 13849-1
2
Important warnings about safety
This Manual is intended for use in conjunction with the Manual of the control units. Please read this Manual
carefully and completely before doing any work on the bumper or on the control unit.
The pressure-sensitive bumper used together with the control unit is a safety component used to protect
persons from shearing movements which may become a source of danger or injuries.
The bumper can be used as a
“tripping device”, which means it is capable of stopping the movement of the
hazardous element or as a device to detect the presence of a person or part of a person.
In order to ensure that a special application of the safety bumper with the control unit used to protect a
machine/installation meets the existing rules it is necessary to assess: the risk level of the
machine/installation and the compatibility with the safety level declared by GAMMA SYSTEM; furthermore, it
should also be borne in mind that
the “performance level” in conformity with
EN ISO 13849-1 Standard for
pressure-sensitive bumpers (safety bumpers) used on machines/devices is defined by Type C
Standards
Other fundamental elements are the installation, maintenance and verification of proper operation of the
pressure-sensitive bumper together with the control unit.
These assessments and elements are the sole responsibility of the purchaser, installer and employer.
The additional requirements indicated below are to be met with before using the pressure-sensitive bumper
together with the control unit:
The machine onto which the pressure-sensitive bumper and the control unit are installed must be
able to come to a safe stop at any point along its working cycle. If the pressure-sensitive bumper
(used to detect the presence of persons) and the relevant control unit are used as a safety device ,
the employer is responsible for ensuring that all requirements, rules, codes and regulations
applicable under current rules are fully satisfied.
All braking and locking mechanisms are to be checked regularly so to ensure their correct operation.
If the locking mechanisms do not work correctly, there is a risk that the machine stops in an unsafe
manner even if the pressure-sensitive device (bumper) and the control unit are working correctly.
