KSB Delta Basic MVP User Manual

9 Trouble-shooting
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KSB Delta Basic
1983.835/01-EN
Fault Possible cause Remedy Action
Pumps start and stop too
frequently.
Accumulator leakage or
wrong pressure setting
Have system checked by the
manufacturer.
Pump 1 not running,
pump 2 running.
Pump 1 has been
stopped, and pump 2 has
assumed the master
function.
Disconnect the system
from the power supply.
Then re-connect it.
The yellow alarm LED indicates different alarm messages by flashing at different
frequencies followed by a 3-second pause.
Table15: Error codes of the frequency inverter
Flashing frequency Description System re-start
1x Lack of water. Automatic re-start after
5-10-20-40-80minutes. The alarm signal starts after
the last re-start attempt.
De-energise the system (pull the mains
plug or set the master switch to 0).
Only after the system has been de-
energised can it be re-started.
2x The maximum motor current is higher than the set
limit.
3x Sensor alarm (sensor not connected or incorrectly
connected, or output current below 2mA)
4x Overheating alarm (temperature at NTC thermistor
exceeds 70°C)
5x Frequency inverter alarm (current too high) De-energise the system (pull the mains
plug or set the master switch to 0).
Only after the system has been de-
energised can it be re-started.
6x Communication error between master and slaves
(check the DIP switch position).
Caution:
After switching off the frequency inverter, wait
10minutes until dangerous voltages have
discharged.
7x The alarm value for the maximum pressure has been
reached. (Determine the cause of the maximum
pressure exceeding the alarm value).
8x The alarm value for minimum pressure has been
reached. (Determine the cause of the minimum
pressure falling below the alarm value).
Rapid flashing
without any pauses
The digital inputs have been disconnected.

KSB Delta Basic MVP Specifications

General

Brand	KSB
Model	Delta Basic MVP
Category	Water Pump
Language	English