Edwards nEXT730 - Configuration; Configure the Pump Using Serial Commands

B8J200880_E - Configuration
Page 80
6. Configuration
Before operating the pump, configure the motor controller settings so that they are
suitable for the application.
If the system is designed to operate with parallel control and monitoring, there is no
facility to change the majority of the motor controller settings once the pump is installed
on the system.
The pump is supplied with all settings at factory default values, as shown in Table:
Summary of commands that can be sent to the pump. If any of the motor controller
settings are to be changed, change them before installing the pump on the system.
The pump can be configured using the customer serial comms over the serial interface.
Configure the pump using serial commands on page 80 details the commands that will
be needed to configure the motor controller. Alternatively use the Edwards TIC Turbo
and Instrument Controller, TIC Turbo Controller or TAG Controller. Further information
regarding this is detailed in Configure the pump using a TIC on page 88. The Edwards
nST2 PC software can also be used to configure the pump, either via the serial interface
or via the USB service port.
Note:
The standby speed may be adjusted using the button on the motor controller as
described in Standby speed setting on page 84.
If the pump is operated with parallel control and monitoring and the controller settings
will not be reconfigured, go straight to Before starting the pump on page 89.
6.1 Configure the pump using serial commands
Refer to Table: Summary of commands that can be sent to the pump for a summary of
the full set of serial commands, parameter ranges and factory defaults for each setting.
Message structure on
page 81
The message structure and command set are the same for RS485 and
RS232 options. To communicate a message to the nEXT pump, the
characters must be sent in a specific order. If the message does not conform
to the correct structure it will be ignored and no reply will be sent.
Command and reply
table definitions on page
81
Explanation of the command and reply characters.
Power limit setting on
page 82
The pump is supplied with a default power limit. If this limit is not suitable
for the application, change it to any value between the maximum and
minimum setting.
Powering a fan from the
motor controller on
page 83
A fan can be powered from the nEXT motor controller on auxiliary output 2.
Controlled venting
options on page 83
If the motor controller is used to automatically control a vent valve, there
are a number of venting options available.