Pepperl+Fuchs DPU1100 Series Manual page 27

VisuNet Display Unit
Appendix
Temperature Error (too Low)
Indication
"Brightness -" button solid
white
Power button solid red
Temperature Error (too High)
Indication
"Brightness +" button solid
white
Power button solid red
Communication Error
Indication
Touchscreen button solid
white
Power button solid red
Problem
Temperature too low (moni-
tored only during booting up)
Problem
Temperature too high (moni-
tored only during booting up)
Problem
No communication with DPU
devices (e.g. storage device,
temperature monitoring,...)
Solution
Check if ambient temperature
surrounding the panel is lower
than the panel's allowed oper-
ating temperature.
Solution
Check if ambient temperature
surrounding the panel
exceeds the panel's allowed
operating temperature.
Solution
Replace display unit
27