10
Maintenance
10.1
Safety
DANGER
Hazard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of
non-observance.
b
Do not do repair work on device components.
b
Do not make changes to or manipulate device components.
b
Apart from the procedures described in this document, the device components
must not be opened.
10.2
Regular cleaning
Overview
Depending on the ambient conditions, the front screen must be cleaned regularly and
in the event of contamination. Static charges, for example, can cause dust particles to
be attracted to the front screen.
The safe multibeam scanner checks the front screen regularly and signals if the front
screen is contaminated:
•
Contamination warning (front screen must be cleaned, operation still possible)
•
Contamination error (limited detection capability, operation no longer possible)
If contamination of the front screen is detected, the safe multibeam scanner signals
the contamination warning or contamination error as follows:
•
The STATE LED of the safe multibeam scanner flashes yellow.
°
1 Hz for a contamination warning
°
3 Hz for a contamination error
•
The safe multibeam scanner sends the contamination information to the machine
via CANopen.
•
For contamination errors only: The safe multibeam scanner switches the safety
output to the OFF state and the protective field status to the “Interrupted” status.
°
The SAFE OUT LED lights up red accordingly.
°
As soon as the safe multibeam scanner detects that the front screen is clean
and the detection capability is restored, the safety output switches back to
the ON state and the protective field status to the “Free” status.
Important information
WARNING
Contamination or damage to the front screen
If the optical properties of the front screen are impaired, persons or body parts might
not be detected or not detected in time.
b
Remove dirt (e.g. droplets, condensation, frost, ice formation).
b
If the front screen is damaged, replace the safe multibeam scanner.
b
Keep the front screen free of substances containing oil and grease.
NOTICE
b
Do not use aggressive or abrasive cleaning agents.
b
Recommendation: Use anti-static cleaning agents.
b
Recommendation: Use anti-static plastic cleaners and lens cloths from SICK.
10
MAINTENANCE
90
O P E R A T I N G I N S T R U C T I O N S | scanGrid2 CANopen
8025990/2021-03-03 | SICK
Subject to change without notice
