Edwards nRVi, Instruction Manual

Page: 81 / 100

Table 26
Flashing error codes
Error flash
position
Error flash
sequence
Comments Actions
0 ssssss Overload timeout. Check whether the pump is not
running under constant high pressure
or the inlet or outlet is not blocked.
1 Lsssss Controller software error. 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
configuration 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 Acceleration timeout. Check whether the pump is not
running under constant high pressure
or the inlet or outlet is not blocked.
4 sssLss Over-current 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 Self test fault. 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 control mode interlock. Reactivate serial enable and send a
serial command to clear the error
code.
8.2 Decoding system status words
If using the serial communications link, additional information, that may be useful for
fault finding, can be accessed.
When sending a query to monitor measured motor speed, the pump also returns a
system status word.
The send command that follows:
Command ? v 8 0 2 cr
The reply will be as follows, where the first part returned is a number refers to motor
rotational speed in revolutions per second (Hz) and the second part is the system status
word:
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A65901880_D - Fault finding