Edwards nEXT400 User Manual

Bit number
Status ag Acve ags means
10 Invalid Controller sowar
e Controller internal soware mismatch
11
Controller upload incom-
plete
Controller failed internal conguraon and
calibraon operaon
12 Timer expired
Failure to reach or maintain half full speed in
the mer seng value
13 Har
dware trip Overspeed or Overcurrent trip acva
ted
14 Thermistor error
Pump internal temperature measurement
sy
stem disconnected or damaged
15
Serial control mode inter-
lock
Serial enable has become inacve
following a
serial Start command.
The system status word used in the example above was taken when the pump is not in
operaon. Decode the word for more informaon about the state of the pump. Refer to
Table: Example decoding of system status words.
Table 30
Example decoding of system status words
Bit number
Status of bit
(in example)
Indicaon
0 0 The pump has not failed
1 1 The pump is at rest
2 0 Speed is below normal speed
3 0 The vent valve is open
4 0 There is no acve start command
5 1 Serial enable is acve
6 0 Standby is not acve
7 0 Speed is below 50% of full rotaonal speed
8 0 The pump is not in parallel control mode
9 0 The pump is not serial control mode
10 0 There is no controller internal soware mismatch
11 0
Controller passed internal conguraon and calibraon
operaon
12 0 The mer has not med out
13 0 Overspeed and overcurrent trip not acvated
14 0 Pump internal temperature measurement system is ne
15 0
Serial enable has not become inacve during serial con-
trol
8.10 Useful service inf
ormaon
If you use the serial communicaons link, addional informaon about the pump (such
as pump type and internal controller soware versions) can be accessed. This
informaon is useful for the service personnel to select the model of the pump.
Send the query that follows to nd out the pump type:
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Edwards nEXT400 Specifications

General

Brand	Edwards
Model	nEXT400
Category	Water Pump
Language	English