IM-P693-07
EMM Issue 2
15
LCS3051 High Water Level Switch
6. Fault finding
6.1 Display, diagnosis and troubleshooting
Important
Before carrying out the fault diagnosis please check:
Supply voltage
Is the level switch supplied with the voltage specified on the name plate?
Wiring
Is the wiring in accordance with the wiring diagram and the relevant schematic
representation of arrangement?
Malfunction in level probe
Status
Fault
Remedy
Water level sufficient. Red LED for
level probe 1 is illuminated. Safety
circuit is open.
The insulation of the level probe is dirty
or faulty.
Clean or, if necessary, replace level
probe.
Further fault indications
Status
Diagnosis
Function
Next activity
Faulty evaluation of level
probe 1, channel 1
Diagnosis LED 1 and
LED alarm 1 illuminated.
Output contacts are opened
instantaneously.
Signal output 1 closes
instantaneously.
next:
Press key AL.
Malfunction in level switch
detected.
Diagnosis LED 3 and
LED alarm 1 or 2 illuminated.
Output contacts are opened
instantaneously.
Signal output 1 closes
instantaneously.
next:
Press key AL.
