Edwards nEXT730D User Manual

Download the latest documents from edwardsvacuum.c
om/HSForms/, follow the
procedure in HS1, ll in the electronic HS2 form, print it, sign it, and return the signed
copy to us.
NOTICE:
If we do not r
eceive a completed HS2 form, your equipment cannot be serviced.
12.2 Bearing monitoring and condioning system
To ensure maximum reliability and bearing life nEXT pumps have an integrated system to
manage the bearing condion. The status is indicated by a blue LED on the pump.
The pumps have an integrated baery-backed real me clock that is constantly
monitoring pump storage me.
The TMP motor controller when powered uses its processor and when unpowered the
real me baery backed clock to monitor the TMP inacvity me. Inacvity me refers
to both when the TMP is unpowered and when the TMP is powered but at rest. When
inacvity me exceeds:
▪ the pre-dened period of 12 months, a bearing condioning is required and
"Bearing Run in Mode" (BRIM) will commence at the next pump start.
▪ the pre-dened period of 3 years, a bearing replacement is required. The customer
will be alerted by the major service due indicator on the STATUS LED (yellow) and
on the Bearing LED (blue). Once the bearing is replaced and the major service
reset, a bearing condioning will be required and will commence at the next pump
start.
When the BRIM process completes, the TMP runs to full speed and normal TMP process
can resume.
You can check the TMP inacve me (storage duraon) and reset BRIM status via:
▪ TIC – browsing to the „Service menu“, „Brg Inacve
“ will display the TMP inacve
me. See TIC user manual for more details
▪ nST2 – See nST2 user manual for more details.
The purpose of rec
ording the inacve bearing me is to maximize the life of the installed
ball bearing. If the bearings are inacve for a long me, the homogeneity of the grease
distribuon deteriorates, which leads to short-term local overheang of the grease in
the bearing when the pump is directly started up to nominal speed. This can lead to
decomposion or evaporaon of the grease. This grease is then no longer available for
the running me of the bearing and ulmately leads to earlier failure of the ball bearing.
The Bearing Run In Mode (BRIM), on the other hand, restores the homogeneity of the
grease distribuon by gently restarng the pump.
12.3 Bearing on-site maintenance
The bearing of the nEXT pump can be serviced on‑site by any service engineer trained by
us.
The following service tool kits and service parts are available.
08/2021 - ©Edwards Limited
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B8J200880_D - Service

Edwards nEXT730D Specifications

General

Brand	Edwards
Model	nEXT730D
Category	Water Pump
Language	English