Light Signals And Faults - Pepperl+Fuchs Vibracon Mini LVL-A1 Mise En Service

Light signals and faults

The LED display is on the connection side of the
LVL-A1. The green light always comes on in
service.
Variants AC and DC-PNP with valve plug
Light signal
Red light comes
on
Green light does
not come on
Red light
flashing
Variants AS-i and DC-PNP with M12 x 1 connector
Light signal
Yellow light
comes on
Red light comes
on
AS-i
Red light comes
on
DC-PNP
Green light does
not come on
Red light
flashing (2 Hz)
28
State/Action
Operating mode MAX (overspill protection):
Sensor immersed in fluid.
Operating mode MIN (dry running protection):
Sensor not immersed in fluid.
Error: No power supply.
½
Check plug, cable and power supply.
Error: Overload or short-circuit in load circuit.
½
Rectify the short-circuit.
½
Reduce maximum load current to below
250 mA.
Error: Internal sensor error or sensor
corroded.
½
Replace device.
State/Action
Sensor immersed in fluid.
Error: Address 0 set or communication error.
½
Carry out addressing process.
½
Parameterise slave.
½
Or reduce line length
(< 100 m total length).
Error: Overload or short-circuit in load circuit.
½
Rectify the short-circuit.
½
Reduce maximum load current to below
250 mA.
Error: No power supply.
½
Check plug, cable and power supply.
Error: Internal sensor error or sensor
corroded.
½
Replace device.