KSB PumpDrive 2 - Page 191

11 Trouble-shooting
191 of 212
PumpDrive 2
Message
number
Message Description Behaviour
A8 PCB temperature high Control electronics overtemperature Non-self-
acknowledging
A9 Overcurrent Impermissible overcurrent Partially self-
acknowledging
A10 Braking resistor Internal overcurrent (for example, if the ramp is
too steep)
Non-self-
acknowledging
A11 Dynamic overload protection Impermissible overcurrent Partially self-
acknowledging
A12 Firmware update required Firmware update required Non-self-
acknowledging
A13 Dry running Dry running of pump Non-self-
acknowledging
A14 Dry running (external) Dry running of pump Self-acknowledging
(configurable)
A15 Hydraulic blockage Pumping against closed piping Non-self-
acknowledging
A16 No master control Failure of actual value sensor/Broken wire/Local/
No redundancy
Self-acknowledging
A18 No matching motor data
available
The extended SuPremE motor data could not be
determined
Self-acknowledging
A19 No motor data available The motor data is not set Self-acknowledging
A20 AMA fault The extended motor data could not be
determined
Self-acknowledging
A98 HMI hardware test not passed Control panel defective Non-self-
acknowledging
A99 IO hardware test not passed Control electronics or M12 module defective Non-self-
acknowledging
Table116: Alerts
Alert Possible causes Remedy
14)15)
Short circuit Motor short-circuited (defective motor
winding)
Check motor windings; perform dielectric test.
Check motor for blockage.
Power supply connected incorrectly Check the cabling; connect the mains power
supply to L1, L2, L3, PE.
Parallel operation of motors Impermissible operating range
Motor terminal board wired incorrectly
(delta/star)
Wire motor terminal board correctly.
Motor connection cable short circuit Check motor connection cable.
Sensor cable shielding connected incorrectly Connect sensor cable shielding to PE on one end
only.
24 V DC cabling short circuit Check cabling.
Thermal motor
protection
PTC sensor connected incorrectly Check PTC sensor connection.
Incorrect motor data set Match motor data to motor used.
Wrong direction of rotation of the pump Change the direction of rotation of the motor via
the phase sequence.
Hydraulic overload Reduce the hydraulic load.
Pump blocked mechanically/runs sluggishly Check pump.
Motor terminal board wired incorrectly
(delta/star)
Wire motor terminal board correctly.
14) Disconnect PumpDrive from the power supply to rectify faults on current-carrying components. Observe the safety
information!
15) Restore the PumpDrive default settings.