Edwards nEXT400 User Manual

Table 25 Flashing service codes
Service ash
code
Comments Acons
LED on 1sec
LED o 1sec
Oil cartridge service rec-
ommended
We recommend you to replace the oil car-
tridge. R
efer to Service on page 95.
LED on 3sec
LED o 1sec
Bearing and oil car-
tridge ser
vice recom-
mended
We recommend you to replace the bear-
ing and oil cartridge. Refer to Service on
page 95.
LED on 3sec
LED o 3sec
Pump service necessary
The turbo impeller or controller has
reached its expected life. We recommend
you to return the pump to our service
centre for service. Refer to Service on
page 95.
8.2 Decoding service status words
The service status can be accessed through the serial link. This method of accessing
service status will give the most complete informaon of current and future service
requirements and preventave maintenance acvies can be scheduled.
A summary of the current pending service status is given in response to the service
status command that follows:
Command ? V 8 8 1 cr
The reply is as follows:
Reply = V 8 8 1 sp h h h h h h h h cr
The service status word is made up of 8 hexidecimal digits. To decode this word, convert
each digit int
o a 4‑digit binary number as described in Decoding system status words on
page 89.
Each binary digit (bit) represents a ag that is acve (state 1) or not acve (state 0). To
help decode the service status word, each bit is numbered (starng with 0 for the least
signicant to 31 for the most signicant) as shown in Controller run me on page 87. The
meaning of each bit in the service status word is given in Table: Service ags.
Table 26 Service ags
Bit number
Status ag Acve ag means
0 Oil cartridge service due
Set when hours unl oil cartridg
e service due
= 0
1 Bearing service due Set when hours unl bearing service due = 0
2 Pump ser
vice due
Set when hours unl pump service due = 0
or cy
cles unl pump service due = 0
3 Controller service due
Set when hours unl controller service due =
0
4 Reserved -
5 Reserved -
04/2022 - ©Edwards Limited
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Edwards nEXT400 Specifications

General

Brand	Edwards
Model	nEXT400
Category	Water Pump
Language	English