Note:
This command overrides the current vent option and closes the vent valve. There is no
command to open the vent valve but, when a stop command is sent to the pump, the
override will be cleared.
6.3.2 Start the pump
To start the pump, send the command (over the serial communications link) that
follows:
Command
!
C
8
5
2
sp
1
cr
The reply is as follows:
Reply
*
C
8
5
2
sp
1
cr
The pump will accelerate to full operating speed. The green indicator LED illuminates
when the pump reaches normal speed. This is 80% of the full rotational speed by
default, but a different value can be selected to suit the application.
6.3.3 Standby speed
If the pump operates at less than or more than the standby speed it will accelerate or
decelerate until standby speed is reached.
To operate the pump at standby speed, send the command (over the serial
communications link) that follows:
Command
!
C
8
6
9
sp
1
cr
The reply is as follows:
Reply
*
C
8
6
9
sp
r
cr
To return the pump to full speed, send the command that follows:
Command
!
C
8
6
9
sp
0
cr
The reply is as follows:
Reply
*
C
8
6
9
sp
r
cr
6.3.4 Stop the pump
When the stop command is received, the pump rotor will decelerate and stop.
To stop the pump, send the command (over the serial communications link) that follows:
Command
!
C
8
5
2
sp
0
cr
The reply is as follows:
Reply
*
C
8
5
2
sp
r
cr
Page 66
B85200880_D - Operation
