
4
Project planning
4.1
Manufacturer of the machine
DANGER
Failure to comply with manufacturer’s obligations
Hazard due to lack of effectiveness of the protective device
b
Carry out a risk assessment before using the safety switch.
b
Do not tamper with, open, or modify the components of the safety switch.
b
Do not repair defective devices – they must be replaced instead.
b
Make sure that switch-on commands which bring about a dangerous state of the
machine are not enabled until the protective device is closed.
b
Ensure that a stop command is triggered if the actuating element is no longer
detected (e.g. when the protective device is opened during a hazardous machine
status).
b
The safety switches must not be circumvented (contacts bypassed), rotated away,
removed, or rendered ineffective in any other way. Put measures in place to
reduce possibilities for circumvention.
4.2
Operating entity of the machine
DANGER
Failure to observe operator obligations
Hazard due to lack of effectiveness of the protective device
b
Changes to the machine and changes to the mechanical mounting of the safety
switch necessitate a new risk assessment. The results of this risk assessment
may require the entity operating the machine to meet the obligations of a manu‐
facturer.
b
Apart from the procedures described in this document, the components of the
safety switch must not be opened or modified.
b
Do not carry out any repair work on components. Improper repair of the safety
switch can lead to a loss of the protective function.
4.3
Design
Important information
DANGER
Bypassing the protective device
Hazard due to lack of effectiveness of the protective device
b
Avoid incentives to manipulate the safety switch by taking at least one of the fol‐
lowing measures:
°
Attach safety switch outside of the sensing range.
°
Cover safety switch with obstacles or shield.
°
Attach safety switch at the covered position.
°
If possible, do not mount the safety switch with the active sensor surface fac‐
ing upwards.
PROJECT PLANNING
4
8023341/14TD/2019-08-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | IME2S
11
Subject to change without notice