Edwards nEXT85 User Manual

Stop the pump with serial control
On successful receipt of the stop command, the pump rotor will decelerate to rest.
1. To stop the nEXT85 pump, send the following command over the serial
communicaons link:
Command ! C
8 5 2
sp
0
cr
2. The reply will be in the following format:
Reply * C
8 5 2
sp
r
cr
Monitor temperature readings with serial control
The temperatures of the pump motor, rotor and the internal electronics of the nEXT85 pump
can be monitored.
1. Send the following query:
Command ? V
8 6 5
cr
2. The reply will be as follows, where the rst number is the motor temperature and the
second number is the motor controller temperature and the third number is the rotor
temperature, all measured in °C:
Reply = V
8 6 5
sp
d d d
;
d d d
;
d d d
cr
Monitor link parameter readings with serial control
The internal voltage, current and motor power of the nEXT85 pump can be monitored.
1. Send the following query:
Command ? V
8 6 0
cr
2. The reply will be in the following format (where the rst number refers to link voltage
(measured in 0.1 Volts – i.e. divide the number by 10 to get an answer in Volts), the
second number refers to link current (measured in 0.1 Amps) and the third number
refers to link power (measured in 0.1 Was):
Reply = V
8 6 0
sp
d d d
;
d d d
;
d d d d d
cr
Monitor measured motor speed with serial control
The measured
rotaonal speed of the motor inside the nEXT85 pump can be monitored.
1. Send the following query:
Command ? V
8 5 2
cr
2. The reply will be in the following format, where the rst returned number refers to
motor rotaonal speed in revoluons per second (Hz):
Reply = V
8 5 2
sp
d d d d
;
h h h h h h h h
cr
Note:
The second return number is a 32-bit system status word (set of 8 hexadecimal characters)
which is useful for fault nding. Refer to Troubleshoong on page 65 for advice fault
nding.
B8G0-00-880A - Operaon of the nEXT85
Page 51

Edwards nEXT85 Specifications

General

Brand	Edwards
Model	nEXT85
Category	Water Pump
Language	English