KSB Leakage Sensor - Trouble-shooting

8 Trouble-shooting
27 of 34
KSB Leakage Sensor
1984.8/02-EN
8 Trouble-shooting
DANGER
Carrying out work on a running pump
Risk of injury: Limbs can be pulled into or crushed by machinery!
▷ De-energise the motor.
▷ Take steps to ensure that the motor cannot be switched on again
unintentionally.
WARNING
Improper work to remedy faults
Risk of injury!
▷ For any work performed to remedy faults, observe the relevant information
given in this operating manual and/or in the product literature provided by the
accessories manufacturer.
If problems occur that are not described in the following table, consultation with the
KSB service is required.
Table11: Trouble-shooting
Error/ defect description Possible cause Remedy
None of the four LEDs are lit. No power supply Check power supply at EXT pin 1 and
3 (10-30VDC).
KSB Leakage Sensor defective Contact KSB.
Blue LED not lit despite tipped
indicator
The inductive sensor in the sensor
housing does not recognise the
tipping movement.
Check the length of engagement of
the inductive sensor. Adjust it if
required.
The blue LED lights up for 3seconds
and then starts flashing together
with the yellow LED.
Balance scale in sensor housing is
jammed.
Clean the sensor housing.
Sensor cable at IN1 defective Replace the sensor cable.
Inductive sensor defective Replace the inductive sensor.
The orange indicator lamp at the
inductive sensor is not lit during
standstill.
The sensor cable is not correctly
connected to connection IN1.
Check the plug-type cable connection
at IN1. Correct it if required.
The sensor cable is not correctly
connected to the inductive sensor.
Check the plug-type connection at the
inductive sensor. Correct it if required.
Inductive sensor defective Replace the inductive sensor.
Balance scale in sensor housing is
jammed.
Clean the sensor housing.
The red LED is lit but no acoustic
alarm is emitted.
DIP switch 4 is set to ON. Set DIP switch 4 to OFF.