B722-40-880 Issue H
Page 44
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Edwards and the Edwards logo are trademarks of Edwards Limited.
Operation
To return the pump to full speed, send the following command:
The reply will be as follows:
4.5.4
Stop the pump
To stop the DX pump, send the following command over the serial communications link:
The reply will be in the following format:
On successful receipt of the stop command, the pump rotor will decelerate to rest.
4.5.5
Temperature readings
The temperatures of both the pump motor and the internal electronics of the DX pump can be monitored by sending
the following query:
The reply will be as follows, where the first number is the motor temperature and the second number is the internal
Podule temperature, both measured in °C:
4.5.6
Link parameter readings
The internal voltage, current and motor power of the DX pump can be monitored by sending the following query:
The reply will be as follows, where the first number refers to voltage (measured in 0.1 Volts – i.e. divide the number
by 10 to get an answer in Volts), the second number refers to current (measured in 0.1 Amps) and the third number
refers to motor power (measured in 0.1 Watts):
4.5.7
Measured motor speed
The measured rotational speed of the motor inside the DX pump can be monitored by sending the following query:
The reply will be as follows, where the first returned number refers to motor rotational speed in revolutions per
second (Hz):
Command
!
c
8
6
9
sp
0
cr
Reply
*
c
8
6
9
sp
r
cr
Command
!
c
8
5
2
sp
0
cr
Reply
*
c
8
5
2
sp
r
cr
Command
?
v
8
5
9
cr
Reply
=
v
8
5
9
sp
d
d
d
;
d
d
d
cr
Command
?
v
8
6
0
cr
Reply
=
v
8
6
0
sp
d
d
d
;
d
d
d
;
d
d
d
d
d
cr
Command
?
v
8
5
2
cr
Reply
=
v
8
5
2
sp d
d
d
d
;
h
h
h
h
h
h
h
h
cr
