Foreseeable Misuse; Necessary Competencies - Leuze electronic MSI-MD-FBX Original Operating Instructions

• The acknowledgment unit for unlocking the start/restart interlock must be located outside of the danger
zone.
• The entire danger zone must be visible from the installation site of the acknowledgment unit.
• When selecting the safety relay it must be ensured that its safety-related capability meets or exceeds
the required performance level PL
data").
• The machine or system control must be electrically influenceable so that a switch command sent by the
safety relay results in the immediate shutdown of the dangerous movement.
• The construction of the safety relay must not be altered. When manipulating the safety relay, the pro-
tective function is no longer guaranteed. Manipulating the safety relay also voids all warranty claims
against the manufacturer of the safety relay.
• The safety relay must be inspected regularly by a competent person to ensure proper integration and
mounting (see chapter 2.2 "Necessary competencies").
• The safety relay must be exchanged after a maximum of 20 years. Repairs or the exchange of wear
parts do not extend the mission time.
2.1.2

Foreseeable misuse

Any use other than that defined under the "Approved purpose" or which goes beyond that use is consid-
ered improper use.
Alone, the safety relay is not a complete protective device. It is not suitable for use in the following cases:
• Applications in explosive or easily flammable atmospheres
• On machines or systems with long stopping times
2.2

Necessary competencies

The safety relay may only be configured, installed, connected, commissioned, serviced and tested in its re-
spective application by persons who are suitably qualified for the given task. General prerequisites for suit-
ably qualified persons:
• They have a suitable technical education.
• They are familiar with the relevant parts of the operating instructions for the safety relay and the operat-
ing instructions for the machine.
Task-specific minimum requirements for suitably qualified persons:
Configuration
Specialist knowledge and experience in the selection and use of protective devices on machines as well as
the application of technical rules and the locally valid regulations on labor protection, safety at work and
safety technology.
Mounting
Specialist knowledge and experience needed for the safe and correct installation and alignment of the
safety relay with regard to the respective machine.
Electrical installation
Specialist knowledge and experience needed for the safe and correct electrical connection as well as safe
integration of the safety relay in the safety-related control system.
Operation and maintenance
Specialist knowledge and experience needed for the regular inspection and cleaning of the safety relay –
following instruction by the person responsible.
Servicing
Specialist knowledge and experience in the mounting, electrical installation and the operation and mainte-
nance of the safety relay in accordance with the requirements listed above.
Leuze electronic
ascertained in the risk assessment (see chapter 13 "Technical
r
MSI-MD-FBX
Safety
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