Edwards nEXT nEXT85 - USB Interface; Parallel Control and Monitoring; Serial Control and Monitoring

▪ Analogue output: Gives a 0 ‑ 10 V output for a number of pump parameters.
The logic interface supports the serial control and the parallel control to monitor and
control through one connector. For serial control, RS232 (default) or RS485 can be
selected using the RS485 / RS232 slide switch which is given on the motor controller.
Refer to Connecon for serial control and monitoring on page 45.
You can plug the logic interface into the manufacturer's TIC Turbo Controller or
TIC Turbo Instrument Controller and then use the given funconality. The logic interface
can be connected to the customer control system as an alternave.
Refer to Logic interface connector on page 25 for more informaon about the logic
interface.
2.4.1 USB interface
The USB service port is designed to work with manufacturer's nST PC soware. The
primary funcon of the interface is to allow an easy conguraon of the pump.
The START / STOP opon is given to check the pump operaon through the USB service
port. It is not intended as an industrial control interface for unaended machine to
machine (M2M) control.
The USB service port supports the same me communicaons with the serial interface
in the logic interface connector. This enables the review of the pump status and logs,
and you can congure the pump while the pump is installed and in operaon.
Use the USB service port only when the 24 - 48 V d.c. power is applied. Do not use the
USB service port without 24 - 48 V d.c. power as there is a risk of corrupon of the pump
controller memory.
2.4.2 Parallel control and monitoring
The simple parallel interface is a quick and easy way to control the pump. Same interface
is used on the 24 V manufacturer's Turbo Pumps. The start and standby controls are
available to use. You can monitor the system status using the normal, fail and analogue
output signals.
Refer to Connect the parallel control and monitoring on page 43 for more instrucons
about how to use the parallel interface.
A system that is in operaon with a parallel connecon only is not capable to adjust the
conguraon sengs stored in the controller (for example, power limit seng or
controlled venng opons). All these features will be at factory default sengs. You can
manually adjust the standby speed if the standby mode is selected, but the motor
controller has to be congured separately before the installaon of the pump to the
system. Refer to Parallel control with serial monitoring or serial conguraon on page 16
and Motor controller conguraon (serial conguraon) on page 16 for more
informaon.
2.4.3 Serial control and monitoring
The serial communicaons link gives complete control and monitoring by using three
signal lines.
The serial data lines have the same connector pins as the parallel signals standby and
fail. The serial data lines can be congured to give an RS485 compliant or RS232
Page 15
B8G000880_D - Introducon