Bit number Status flag
Active flag means
7
Service due
Service is due. Specific operation necessary
should be determined by checking the bits
above
8 - 31
Reserved
-
8.3 Controller run time
The run hours and recommended service time of the controller on the pump can be
monitored.
Send the query that follows:
Command
?
V
8
8
1
cr
The reply is as follows (where, first number is the hours run by the controller and second
is the number of hours until the service is recommended):
Reply
=
V
8
8
2 sp d
d
d
d
d
d
;
d
d
d
d
d
d
cr
Note:
The number of hours until the next service is due is estimated by the controller based on
the operating conditions of the pump and they can decrease at more or less than 1 hour
per hour. Decreased pump temperature is the primary factor in extending the controller
life.
8.4 Pump run time
The run hours and recommended service time of the impeller in the pump can be
monitored.
Send the query that follows:
Command
?
V
8
8
3
cr
The reply will be as follows (where, first number is the hours run by the impeller and
second is the number of hours until service is recommended):
Reply
=
V
8
8
3 sp d
d
d
d
d
d
;
d
d
d
d
d
d
cr
8.5 Pump cycles
The number of start-stop cycles completed and the number remaining until the next
service is due can be monitored.
Send the query that follows:
Command
?
V
8
8
4
cr
The reply is as follows (where, first number is the start-stop cycles completed by the
pump and second is the number of start-stop cycles until service is recommended):
Reply
=
V
8
8
4 sp d
d
d
d
d
d
;
d
d
d
d
d
d
cr
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B85200880_D - Fault finding
