Edwards nEXT730D User Manual

Standby speed seng
on page 70
The pump c
an be run at standby speed rather than full rotaonal speed.
The standby speed is a user-congurable opon and can be set to any value
between 55% and 100% full rotaonal speed.
Normal speed seng on
page 70
The normal speed is a user-congurable seng and can be set to any value
between 50% and 100% full rotaonal speed.
Timer seng and op-
ons on page 71
The meout period is a user-congurable opon and can be set to any val-
ue from 1 to 30 minutes.
Analogue signal opons
on page 72
The analogue output can be used to monitor one of ve dierent parame-
ters.
Electronic braking op-
ons on page 72
The pump is supplied with the electronic braking disabled by default.
Factory sengs on page
73
The nEXT pump c
an be re-congured to its original factory sengs with one
serial command.
Assigning a mul-drop
address on page 73
E
ach individual pump must be programmed with its own mul-drop ad-
dress via a point-to-point connecon before introducon into a mul- drop
network.
6.1.1 Message structure
The message s
tructure and command set are the same for RS485 and RS232 opons. To
communicate a message to the nEXT pump, the characters must be sent in a specic
order. If the message does not conform to the correct structure it will be ignored and no
reply will be sent.
The correct structure to use is as follows:
▪ a valid start character, either a '!' character for a store operaon or a '?' character
for a query operaon, followed by
▪ a command, which will be an upper case alphabecal
character, followed by
▪ an object number, comprising three decimal digits, followed by
▪ for some commands only, a data eld, comprising a sequence of characters
separated from the object number by a space, followed by
▪ a terminang carriage return.
The message protocol in mul-drop mode is marginally dierent, refer to Mul-drop
operaon on page 46.
6.1.2 Command and reply table denions
Explanaon of the command and reply characters.
Table 16 Command abbreviaons
Abbreviaon
Meaning
cr Carriage return character
chars Characters
d
Decimal ASCII character
*
h Hexadecimal ASCII character
08/2021 - ©Edwards Limited
Page 67B8J200880_D
300812671_002_C3
B8J200880_D - Congur
aon

Edwards nEXT730D Specifications

General

Brand	Edwards
Model	nEXT730D
Category	Water Pump
Language	English