Edwards nEXT730 - Service Information

B8J200880_E - Fault finding
Page 118
Table 32 Example decoding of system status words
Bit
number
Status of bit (in example)
Indication
0
0
The pump has not failed
1
1
The pump is at rest
2
0
Speed is below normal speed
3
0
The vent valve is open
4
0
There is no active start command
5
1
Serial enable is active
6
0
Standby is not active
7
0
Speed is below 50% of full rotational speed
8
0
The pump is not in parallel control mode
9
0
The pump is not in serial control mode
10
0
There is no controller internal software
mismatch
11
0
Controller passed internal configuration and cal-
ibration operation
12
0
The timer has not timed out
13
0
Overspeed and overcurrent trip not activated
14
0
Pump internal temperature measurement
system is fine
15
0
Serial enable has not become inactive during
serial control
11.6 Service information
If using the serial communications link, additional information about the pump, such as
pump type and internal controller software versions, can be accessed. This information
is particularly useful for service personnel to determine the model of the pump.
Send the following query to find out pump type:
Command
?
s
8
5
1
cr
The reply is as follows, where String 1 is the pump type, String 2 is the DSP software
version number and String 3 is the designated full speed of the pump (in
revolutions per second):
Reply
=
s
8
5
1
sp
String 1
;
String 2
;
String 3
cr
Send the following query to find out the PIC software version:
Command
?
s
8
6
8
cr
The reply is as follows, where String 1 is the PIC software version number:
Reply
=
s
8
6
8
sp
String 1
cr