Edwards nEXT400 User Manual

Refer to Table: Command abbre
viaons for the abbreviaons used to specify the
commands in the secons that follows.
Refer to Table: Error codes for the error codes that can be returned.
Table 15 Summary of commands that can be sent to the pump
Object name Command
Parame-
ter range
Factory
seng
Data type Units
Comments
Node !S850
?S850
0.99 - decimal address mul-drop address
0 = disable mul-drop address
99 = wildcard
Pump type ?S851 7
10
4
- string
string
string
chars
chars
chars
Pump type
DSP soware version number
(D396496XXX for nEXT)
Full speed RPS (1000 for nEXT)
Pump con-
trol
!C852 0
1
- decimal - Stop the pump
Start the pump
?V852 0.1800
32-bits
- decimal
hex
RPS
ags
Measured motor speed
System status word
Vent opons !S853
0
0 decimal Hard vent only when < 50%
speed
?S853
1
Controlled vent if > 50% speed
or hard vent if < 50% speed
2
Hard vent if stop or hard vent if
fail and < 50% speed
3
Hard vent if stop or controlled
vent if fail and > 50% speed or
hard vent if fail and < 50% speed
4
Hard vent if fail or hard vent if
stop and < 50% speed
5
Hard vent if fail or controlled
vent if stop and > 50% speed or
hard vent if stop and < 50%
speed
6 Hard vent if stop or fail
7 Same as opon 6
8
Vent = Permanently enabled
(Fan)
Timer
seng !S854
?S854
1.30 8 decimal minutes Timeout period for both inial
ramp up and if speed drops be-
low 50%
Power limit
seng
!S855
?S855
50.200 160 decimal Was Link power maximum
Normal
speed seng
!S856
?S856
50.100 80 decimal % Normal speed as a percentage
of full speed
04/2022 - ©Edwards Limited
Page 53B80000880_G
B80000880_G - Installaon

Edwards nEXT400 Specifications

General

Brand	Edwards
Model	nEXT400
Category	Water Pump
Language	English