Edwards nEXT730 - Flashing Inactivity Service Codes (Blue Bearing LED)

B8J200880_E - Fault finding
Page 115
Table 28 Flashing error codes
Error flash
position
Error flash
code
Comments
Actions
0
ssssss
The speed fell below 50% of full
rotational speed with the Timer
disabled.
Check whether the pump is too
hot or whether the inlet pressure
is too high.
1
Lsssss
Controller internal software
mismatch.
Cycle the power to the pump and
see whether the error code
appears again. If it does, contact
us or the supplier.
2
sLssss
Controller failed internal configu-
ration and calibration operation.
Cycle the power to the pump and
see whether the error code
appears again. If it does, contact
us or the supplier
3
ssLsss
Failure to reach or maintain half
full speed within the timer setting
value.
Check whether the pump is too
hot or whether the inlet pressure
is too high.
4
sssLss
Overspeed or overcurrent trip
activated, or other hardware fault.
Cycle the power to the pump and
see whether the error code
appears again. If it does, contact
us or the supplier.
5
ssssLs
Pump internal measurement
system disconnected or damaged.
Cycle the power to the pump and
see whether the error code
appears again. If it does,contact us
or the supplier.
6
sssssL
Serial enable becomes inactive
following a Serial Start command.
Re‑activate Serial Enable and send
a Serial Stop command to clear
the error code.
Note:
The alarm LED error flash sequence is capable of signaling multiple fail conditions. For
example, error flash code sLssLs signifies both error 2 (controller failed internal
configuration and calibration operation) and error 5 (pump internal measurement
system disconnected or damaged).
11.4 Flashing inactivity service codes (blue bearing LED)
Whenever an inactivity service is required the blue bearing LED will show a flashing
sequence as detailed in the table below.