Flashing Service Codes; Flashing Error Codes - Edwards nEXT730D Instruction Manual

Returned error code

11.2 Flashing service codes

Whenever a service is required the standard once per revolution flash on the yellow
status LED is replaced with a service flash code.
Table 27 Flashing service codes
Service flash
code
LED on 3sec
LED off 1sec
LED on 3sec
LED off 3sec

11.3 Flashing error codes

Whenever a fail condition becomes active, the red alarm lights continuously or shows a
flashing sequence.
If the error light is on continuously, this indicates a problem with the embedded
software. In this case, try cycling the power. If cycling the power does not clear the
indiwill be required. Contact the supplier or Edwards. If the alarm LED is flashing,
identify the error flash code and consult the table in
page 102.
There is a sufficient off period between each subsequent cycle repetition to clearly mark
the start of a new flash sequence. The duration of a long flash (L) is equal to 3 times the
duration of a short flash (0.5 s).
Table 28 Flashing error codes
Error flash Error flash
position code
0 ssssss
B8J200880_D
300812671_002_C3
B8J200880_D - Fault finding
Meaning
1 Invalid command for object ID
2 Invalid Query/Command
3 Missing parameter
4 Parameter out of range
Invalid command in current state - e.g. serial com-
5
mand to start/stop when in parallel control mode
Comments
Bearing service recom-
mended
Pump service required
Comments
The speed fell below 50% of full
rotational speed with the Timer
disabled.
Page 100
Actions
It is recommended that the bearing is re-
placed. Refer to Bearing maintenance
page 89.
The turbo impeller or controller has
reached its expected life. It is recommen-
ded that the pump is returned to our serv-
ice centre for service. Refer to
maintenance on page 89.
Decoding system status words
Actions
Check whether the pump is too
hot or whether the inlet pressure
is too high.
08/2021 - ©Edwards Limited
on
Bearing
on