• Adjustment to the empty state outside the operating range (e.g.
adjustment to the empty state with direct contact with an electri-
cally grounded medium, e.g. if the active face is immersed in water).
Help: Avoid the above-mentioned errors and repeat the adjustment.
Further faults:
• Electronic fault or sensing zone of the unit damaged
• Internal fault (can only be deleted by disconnecting and connecting
power again, hardware reset).
6 Set-up / operation
Check the safe functioning of the unit. Display by LEDs.
The red LED indicates no malfunction of the unit, it indicates that the
internal sensor signal is near the switching threshold.
Two cases can be distinguished:
•
Normal operation/safe operation
The red LED is lit temporarily during the change between "medium"
and "no medium".
14
LED green
ON = unit is ready for operation
flashes slowly (1 Hz) = adjustment mode empty state
flashes quickly (2 Hz) = adjustment mode full state
OFF = locking mode
LED yellow
OFF = switching output disabled
ON = switching output enabled
LED red
flashes quickly (2 Hz) = error message
ON = undefined operating range
LED yellow and red
flash quickly simultaneously (2Hz)
= short circuit of the switching output
Summary of Contents for Efector 150
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