
PSEN opII4H Series
Operating Manual PSEN opII4H Series
1003501-EN-02
38
Meaning
red
red
green
Overtemperature; OSSD in the OFF
state
1. Ensure that the ambient temperature
corresponds to the information in the
2. Perform a safety light grid
restart [
.
red
red
green
Undervoltage; OSSD in the OFF state
1. Ensure that the supply voltage cor-
responds to the information in the
2. Perform a safety light grid
restart [
.
Safety light grid restart
a
Disconnect the supply voltage from the safety light grid and reconnect it. The
begins.
Malfunction
DANGER!
Loss of safety function due to a malfunction of the safety light grid
A safety light grid malfunction may lead to serious injury or death.
If there is a safety light grid malfunction, immediately discontinue operation
of the system components whose hazardous area the grid secures.
Regular checks and maintenance
Checks
Regular checks can bring to light changes to the plant/machine, safeguards and ambient
conditions.
Regular check
Pilz recommends that the safety light grid be checked every six months.
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Check the safety light grid’s front panel.
–
Scratched front panel: Replace the safety light grid.
–
In a particularly dirty environment, front panel cleanliness should be checked more
frequently.