Remedy
Contact us or the supplier for further information.
Fault
The pumping speed is poor or pump down time is too long
Cause
The pipelines connections are too small in diameter.
Remedy
Make sure that the pipework has sufficient conductance (user's responsibility) and the
pump performance is not compromised.
Cause
There is a leak in the system.
Remedy
Do the leak test of the pump system in accordance with the requirements specified in
on page 13.
Cause
The motor controller is current limiting the supply.
Remedy
Adjust the inlet pressure/flow until the pump performance recovers.
Cause
The pump chamber is too big.
Remedy
Make sure that the chamber size does not exceed the limits specified in
on page 12.
8.1 Alarm indicator codes
When the fail condition becomes active, the red alarm indicator shows a flashing
sequence.
▪
If the error light is on continuously, this indicates a problem has been found with
the embedded software. In this case, switch the power supply on and off.
▪
If the indication is not cleared, a software download may be required. In this case,
contact us or the supplier.
▪
If the alarm indicator is flashing, identify the error flash code. Refer to
on page 35.
Note:
There is a sufficient off period between each subsequent cycle repetition to mark
the start of a new flash sequence. The duration of a long flash (L) is equal to 3 times
the duration of a short flash (0.5 s).
Table 17 Flashing error codes
Error flash
position
Error flash
sequence
Comment
Actions
0
s-s-s-s-s-s
Overload timeout
Check if the pump is not under constant high
pressure or the inlet or outlet is not blocked.
1
L-s-s-s-s-s
Controller software
error
Switch the power to the pump off and on and see
whether the error code appears again. If it does,
contact us or the supplier.
2
s-L-s-s-s-s
Controller failed
internal configuration
and calibration
operation
Switch the power to the pump off and on and see
whether the error code appears again. If it does,
contact us or the supplier.
3
s-s-L-s-s-s
Acceleration timeout
Check if the pump is under constant high pressure
or the inlet or outlet is blocked.
Page 35
A90301880_B - Fault finding
