Mitsubishi Electric FR-D710W-0.1K, Инструкция по эксплуатации

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6
P
R
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CAUTIONS FOR MAINTE
NAN
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INS
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IO
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Inspection items
6.1.5 Checking the inverter and converter modules
<Preparation>
(1) Disconnect the external power supply cables (R/L1, S/L2, T/L3) and motor cables (U, V, W).
(2) Prepare a tester. (Use 100
Ω
range.)
<Checking method>
Change the polarity of the tester alternately at the inverter terminals R/L1, S/L2, T/L3, U, V, W,
P/
+ and
N/
-, and check for
continuity.
<Module device numbers and terminals to be checked>
z Three-phase 200V class, Three-phase 400V class, single-phase 200V class
z Single-phase 100V class
NOTE
1. Before measurement, check that the smoothing capacitor is discharged.
2. At the time of discontinuity, the measured value is almost
∞
. When there is an instantaneous continuity, due to the
smoothing capacitor, the tester may not indicate
∞
. At the time of continuity, the measured value is several to
several tens-of ohms depending on the module type, circuit tester type, etc. If all measured values are almost the
same, the modules are without fault.
Tester Polarity
Measured
Value
Tester Polarity
Measured
Value
Conver
te
r
mod
ul
e
D1
R/L1 P/+ Discontinuity
D4
R/L1 N/- Continuity
P/+ R/L1 Continuity N/- R/L1 Discontinuity
D2
S/L2 P/+ Discontinuity
D5
S/L2 N/- Continuity
P/+ S/L2 Continuity N/- S/L2 Discontinuity
D3
∗
T/L3
∗
P/+ Discontinuity
D6
∗
T/L3
∗
N/- Continuity
P/+ T/L3
∗
Continuity N/- T/L3
∗
Discontinuity
In
vert
er
mod
u
le
TR1
U P/+ Discontinuity
TR4
U N/- Continuity
P/+ U Continuity N/- U Discontinuity
TR3
V P/+ Discontinuity
TR6
V N/- Continuity
P/+ V Continuity N/- V Discontinuity
TR5
W P/+ Discontinuity
TR2
W N/- Continuity
P/+ W Continuity N/- W Discontinuity
(Assumes the use of an analog meter.)
* T/L3, D3 and D6 are only for the three-phase power input specification models.
Tester Polarity
Measured
Value
Tester Polarity
Measured
Value
Conver
ter
module
D1
S/L2 P/+ Discontinuity
—
R/L1 P/+ Discontinuity
P/+ S/L2 Continuity P/+ R/L1 Discontinuity
D2
S/L2 N/- Continuity R/L1 N/- Discontinuity
N/- S/L2 Discontinuity N/- R/L1 Discontinuity
In
ve
rte
r
m
odule
TR1
U P/+ Discontinuity
TR4
U N/- Continuity
P/+ U Continuity N/- U Discontinuity
TR3
V P/+ Discontinuity
TR6
V N/- Continuity
P/+ V Continuity N/- V Discontinuity
TR5
W P/+ Discontinuity
TR2
W N/- Continuity
P/+ W Continuity N/- W Discontinuity
(Assumes the use of an analog meter.)
Converter module Inverter module
D1 D2 D3
D4 D5 D6
TR1 TR3 TR5
TR4 TR6 TR2
U
V
W
R/L1
S/L2
T/L3
C
P/+
N/-
Converter module Inverter module
D1
D2
TR1 TR3 TR5
TR4 TR6 TR2
U
V
W
R/L1
S/L2
C
C
P/+
N/-