Edwards nEXT85 User Manual

Error ash
posion
Error ash
code
Comments Acons
2 sLssss Controller failed internal
conguraon and calibraon
operaon.
Cycle the power to the pump
and see whether the error
code appears again. If it does,
contact the supplier or
Edwards.
3 ssLsss Failure to reach or maintain
half full speed within the
mer seng value.
Check whether the pump is
too hot or whether the inlet
pressure is too high.
4 sssLss Overspeed or overcurrent trip
acvated, or other hardware
fault.
Cycle the power to the pump
and see whether the error
code appears again. If it does,
contact the supplier or
Edwards.
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 the supplier or
Edwards.
6 sssssL Serial enable becomes
inacve following a serial start
command.
Re-acvate serial enable and
send a serial stop command to
clear the error code.
Note:
The alarm LED error ash sequence is capable of signaling mulple fail condions. For
example, error ash code sLssLs signies both error 2 (controller failed internal conguraon
and calibraon operaon) and error 5 (pump internal measurement system disconnected or
damaged).
Decoding system status words
If using the serial
communicaons link, addional informaon, that may be useful for fault
nding, can be accessed.
When sending a query to monitor measured motor speed, the pump also returns a system
status word.
The send command is as follows:
Command
? V
8 5 2
cr
The reply will be as follows, where the rst part returned is a number refers to motor
rotaonal speed in revoluons per second (Hz) and the 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. Follow the example below:
2
2 8 3 0 0 2 2
B8G0-00-880A - Troubleshoong
Page 70

Edwards nEXT85 Specifications

General

Brand	Edwards
Model	nEXT85
Category	Water Pump
Language	English