Fulling DZB200M - Fault Diagnosis and Countermeasures; Fault Diagnosis Introduction and Common Faults

m oto r d r i ver inve rter re s et
Adjust the power suppl y o r
remove the peripheral
p ower- supply loop fau lt
Rep lac e t he da ma ge d rect i fy i ng
bridge or the buffering resistor
Transient power cutexistsor not
Check if the input end voltage of
the mot or driver in ve rter i s within the
value required bythe regulation
Mea s u re if the D C
bu s volt ag e i s normal
Check if the main control
board is normal
Check if the rectifyin g b ridge
or the buffering resistor is normal
Check if the drive board is normal
Changemain controlboard
Change drive board
Reference for the
m ain ten ance pers onn el
Yes
No
No
No
No
No
Yes
No
Yes
Yes
Yes
1. Under voltageof D CB us( E001)
2. Overvoltageduringacceleration(E002)
Adju s t the volt age w ith i n
the normalrange
Can c el t he exte r nal f orc e
or insta llth e brake resistor
I ncrease t he acceleration
time
Insta ll thebra keunitand
resistor
The inputvoltage is too high or n ot
If there exists the external force
driving t he m ot or op eration durin g
theaccelerationprocess
The ac cel erat ion tim e is too sho r t or no t
Is there any brake unit
or brake resistor installed
Se ek techn i ca l supp ort
Yes
Yes
Yes
No
No
No
No
Yes
Chapter 7 Fault D iagnosis and Co untermeasures
DZB Series
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DZB200 has 25 pieces of a larm information and prot ec tionfunctions in t ota l. Once thefault occ urs,
the protectionfunction starts, the inverterstops input ti ng,the f ault relay contact poi nt is a ctivated, and t he
faul tcode wil l be di splayedon the displ ay pa nel of theinverter.Before see king services , the subscriber
may conduct theself-check according to thepromptgi venin thi s section, a nalyz e thefa ult causes,and fi nd
out the s olutions. I f t he fault bel ongsto thecausesdescribed in t he br oken line bo x,pl easeseek t hes ervi ce
bycontactingthe inverter age nt or directly c onta ctin gour corporation.
Com mon Faults and the F aul t Diagnosis
The following faults may probabl yocc ur during the using of t he inverter, please refer to the methods
des cribed below to pe rform the faul tanalysis.
1. N o Electr icity Disp la y
1)Chec kwith mult imeteri f theinput power supplyof the inverter is consist ent with itsra te dvoltage.
If there issomething wrong with the power supply, pleas e checkand remove it.
2)Chec kif the three-phaserectifyingbridge is intact.If t he r ectifying br idge has be en e xploded,please
seek technical service.
3)Chec kif the CH AR GE indicator is on. Ifthe indicator is off,t he faul t will be on the rec ti fyingb ridge
orthe buffering res ist ance .If theindicatoris on, then the faultmay probably lies in the switchon/offpart,
please seekfor help.
2.The air Switch Trips o ff A fter P ower-on
1)Chec kif the earthing or short cir cu it occurs between theinput power s uppli es and remove t he problem.
2)Chec kif the r ectifying bridge has bee n broken down.If so, seek for the servi ce .
3.TheMotor D oesnot R unAfter the Inverter S tarts to Run
1)Chec ki f there is e qua lizing three-pha se inp ut b et ween U,V and W. If yes, the motor circu it or itself
may bedamaged, or themotor stops tur ning f or m echanicalreason.Please r emoveit .
2)If there is in putbut thethreephases are not equalizing,thei nve rter driveboard or the o utput module
may bedamaged. Please seek fortheservice.
3)I f t here is n o out put voltage, the drive board or output module maybe d ama ged.Please seek f or t he
service.
4. When the P ow e r-on Inverter D i s play s Norm a lly, th eA i r Switch Trips off A f te r t he Op eratio n.
1)Chec ki fthe short circuit occur s betw een the output modules. I fye s, ple ase seek t he service.
2)Chec kif the short circuit ore art hing occurs between themotor lead wires. If yes, pleaseremove it.
3)I f t he tripping occ urs only occasionally and the distanc e between the motor and the inverter is bi g,
the n the adding of a noutputAC r eac tor s ha ll be c onsidered.
C hapte r7 F a ult Diagn os is an d Coun termea sures
Chapter 7 Fault Dia gnosis and Co untermeasure s
DZB S eri es
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