Warning
Possible causes
Remedy
FI carrier frequency
(3-11-1-1)
set too high
Set carrier frequency to permissible range
Case Temperatur
Ambient temperature of PumpDrive > 40 °C Impermissible operating range; mind power
Internal/external fans do not work
(1-4-1-3)
> 50 °C
→
External fans must run.
Heat sink/cooling fins dirty
Clean heat sink/cooling fins.
FI carrier frequency
(3-11-1-1)
set too high
Set carrier frequency to permissible range
(
Dev not active
Main pump failure
Check main pump.
KSB local bus interrupted
Check KSB local bus.
Sleep Mode
Stand-by mode active in manual mode
Press the Off key and then the Man key for
manual mode.
Q estimation
The pump is operated outside the limits of
the set H/Q data points or P/Q data points.
Impermissible operating range; operate the
pump within the permissible range.
The H/Q data points or P/Q data points have
been entered incorrectly.
Check the H/Q data points / P/Q data points
(
11.3 Alerts
Table 114: Overview of alerts
Message
Description
PumpDrive
response
Short circuit
Short-circuit monitoring
Stop
Mot therm Probe
PTC has tripped
Stop
Low 24 V
Fault with internal 24 V supply
Stop
Drive over temp
Drive overtemperature
Stop
Under Voltage
Impermissible undervoltage (mains)
Stop
High Voltage
Impermissible overvoltage (mains)
Stop
Over Current
Impermissible overcurrent
Breakover Curre
Internal overcurrent (for example, if the ramp
is too steep)
Stop
Stop and Trip
A fault resulting in stop & trip has occurred.
Stop & trip
Int Temp incorr
Control electronics overtemperature
Stop
Missing BinF
No binary file
Service required
Dry Run
Dry running of pump
Hydraulic block
Impeller blocked
CAN Init Failed
KSB local bus initialisation error
Service required
Duplicate Node
Two nodes with the same ID on the KSB local
bus
Service required
Upload failed
Error when reading the binary files
Service required
Download failed
Write error when downloading a parameter
set
Service required
Too many BinF
Insufficient storage capacity
Service required
Download failed
Error when writing data
Service required
Table 115: Alerts
Alert
Possible causes
Remedy
37)38)
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
37)
Disconnect PumpDrive from the power supply to rectify faults on current-carrying components. Observe the safety
information!
38)
Restore the PumpDrive default settings.
11 Trouble-shooting
134 of 162
PumpDrive