Edwards nEXT730D User Manual

Returned error code
Meaning
1 Invalid command for object ID
2 Invalid Query/Command
3 Missing parameter
4 Parameter out of range
5
Invalid command in current state - e.g. serial com-
mand to s
tart/stop when in parallel control mode
11.2 Flashing service codes
Whenever a service is required the standard once per revoluon ash on the yellow
status LED is replaced with a service ash code.
Table 27
Flashing service codes
Service ash
code
Comments Acons
LED on 3sec
LED o 1sec
Bearing service recom-
mended
It is recommended that the bearing is re-
placed. Refer to Bearing maintenance on
page 89.
LED on 3sec
LED o 3sec
Pump service required
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 Bearing
maintenance on page 89.
11.3 Flashing error codes
Whenever a fail condion becomes acve, the red alarm lights connuously or shows a
ashing sequence.
If the error light is on connuously, this indicates a problem with the embedded
soware. 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 ashing,
idenfy the error ash code and consult the table in Decoding system status words on
page 102.
There is a sucient o period between each subsequent cycle repeon to clearly mark
the start of a new ash sequence. The duraon of a long ash (L) is equal to 3 mes the
duraon of a short ash (0.5 s).
Table 28 Flashing error codes
Error ash
posion
Error ash
code
Comments Acons
0 ssssss
The speed fell below 50% of full
rotaonal speed with the Timer
disabled.
Check whether the pump is too
hot or whether the inlet pressure
is too high.
08/2021 - ©Edwards Limited
Page 100B8J200880_D
300812671_002_C3
B8J200880_D - Fault nding

Edwards nEXT730D Specifications

General

Brand	Edwards
Model	nEXT730D
Category	Water Pump
Language	English