Specifications

VFD‐G7SeriesFrequencyInverterOperationManualChapter2SpecificationsandSelection

20
VFD POWER
(KW)
DC Reacto
r
Configuration
Recommended
DC Reacto
r
TYPE
Reactor
Rated
Current(A)
N
otice
0.4～30
Without
external DC
reactor
terminals
Without external
DC reacto
r
terminals
37～55
Optional
external DC
reactor
SC-DCL150 150
For the
method o
f
external DC
reactor,
p
lease chec
k
the chapter 3
75～93 SC-DCL250 250
110～132 SC-DCL300 300
160～200
Standard
external DC
reactor
SC-DCL400 400
220～280 SC-DCL600 600
315～400 SC-DCL800 800
2.8 Frequency Inverter Daily Maintenance
2.8.1 Daily Maintenance
Manyfactorssuchasambienttemperature,humidity,dust,vibrationwillcasuetheinternal
componentsagingandgiverisetotheoccurrenceofpotentialfaultsorlessentheservicelife
oftheVFD.Therefore,itisnecessarytoconductroutinemaintenancetotheVFD.
Attention
The high voltage still exist in the filter capacitor when the power is off, so
maintenance to the VFD couldn’t be performed immediately, it could be
performed if the busbar voltage (the voltage between terminals (+) and (-) )
measured by multimeter after 5 minutes is below 36V.
Dailyinspectionitems:
1)Whenrunning,whetherthemotorhasabnormalsound.
2)Whenrunning,whetherthemotorgeneratesvibration.
3)WhethertheinstallationenvironmentoftheVFDchanges.
!