Edwards nEXT 55, Инструкция по эксплуатации

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Error flash
position
Error flash
code
Comments Actions
2 sLssss
Controller failed internal configu-
ration and calibration operation
Restart the system. If the error
code is not cleared, contact us or
the supplier.
3 ssLsss
Fail to reach or hold half full speed
in the timer setting value
Check if the pump is too hot or if
the inlet pressure is too high.
4 sssLss
Overspeed or overcurrent trip is
activated, or other hardware fault
Restart the system. If the error
code is not cleared, contact us or
the supplier.
5 ssssLs
Pump internal measurement sys-
tem is disconnected or damaged
Restart the system. If the error
code is not cleared, contact us or
the supplier.
6 sssssL
Serial enable becomes inactive af-
ter a Serial Start command
Activate the Serial Enable again
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 error 2 (controller failed internal configuration
and calibration operation) and error 5 (pump internal measurement system disconnected
or damaged).
8.4 Decoding system status words
When you use the serial communications link, additional information that can be useful
for the 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 5 2 cr
The reply is as follows (where, first returned number refers to motor rotational speed in
revolutions per second (Hz) and second part is the system status word):
Reply = v 8 5 2 sp d d d d ; h h h h h h h h cr
The System Status Word returned is made up of 8 hexadecimal digits. To decode this
word, convert each digit into a 4
‑
digit binary number. Example:
2 2 8 3 0 0 2 2
ê ê ê ê ê ê ê ê
0 0 1 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0
Refer to Table: Hexadecimal conversion table for more information.
Table 36
Hexadecimal conversion table
Hexadecimal Binary Decimal
0 0000 0
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