Edwards nEXT200200, Инструкция по эксплуатации

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Error flash
position
Error flash
code
Comments Actions
2 sLssss
Controller failed internal
configuration and calibration
operation
Restart the system. If the
error code is not cleared,
contact us or the supplier.
3 ssLsss
Failure to reach or maintain
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
system 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 after 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 can signal 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).
8.9 Decoding system status words
When you use the serial communications link, additional information that can be useful for the fault
finding can 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)):
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 on page 83 for more information.
Table 26
Hexadecimal conversion table
Hexadecimal Binary Decimal
0 0000 0
Page 83
B85200880_D - Fault finding