Watt Drive V3000-015HF, Руководство пользователя

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Explanation of Function
Seite 172 / 180
5.5 The method to check Inverter, converter part
A test is possible to check quality.
(Preparation)
[1] Take out the power lines (R, S and T) connected to the inverter, the motor connection lines (U, V
and W) and the regenerative control resistance (P and RB).
[2] Prepare tester. (Using range of 1 ohm resistance measure range.)
(How to check)
It is possible to check the quality of the charging state of the terminals R, S, T, U, V, W, RB, P and N of the inverter and
the pole of the tester by measuring the charging state.
(Note1) Before you measure the voltage between P and N with DC current range, confirm that the
smoothing capacitor is discharged fully, execute checks.
(Note2) Almost infinite value is indicated on no conducting.
With the effect of the smoothing capacitor, the inverter conducts instantly and an infinite value
isn’t indicated. Ohm-number 10 ohms is indicated on conducting.
The values indicated will not be exactly the same for each terminal, however they will be very
close together. If there is a significant difference a problem may exist.
Pole of tester
(Red) (Black)
Measure
value
R PD No-conduct D1
PD R Conduct
S PD No-conduct D2
PD S Conduct
T PD No-conduct D3
PD T Conduct
R N Conduct D4
N R No-conduct
S N Conduct
D5
N S No-conduct
T N Conduct
Conv
ert
er
D6
N T No-conduct
U P No-conduct
TR1
P U Conduct
V P No-conduct TR2
P V Conduct
W P No-conduct TR3
P W Conduct
U N Conduct TR4
N U No-conduct
V N Conduct
TR5
N V No-conduct
W N Conduct
In
ve
rt
er
TR6
N W No-conduct
RB P No-conduct
pa
r
TR7 P RB Conduct
Converter
Inverter
PD P
D1
D2 D3
C
+
RB
TR4 TR5 TR6
TR1 TR2 TR3
N
D4
D5 D6
U
V
W
R
S
T
TR7