J300
5
INSTRUCTION MANUAL
10.3 Measurement Method for I/O Voltage, Current, and Power
General measuring instruments for I/O voltage, current, and power are indicated below. The voltage
to be measured is the fundamental wave effective voltage and the power to be measured is the total
effective value.
R
(L1)
S
(L2)
T
(L3)
R
S
T
General
purpose
inverter
U
V
W
Motor
U(T1)
V
(T2)
W
(T3)
I
R
I
S
I
T
E
R
E
S
E
T
W
I1
W
I2
I
U
I
V
I
W
E
U-
E
V-
w
E
W-
v
Power
supply
Between U and V, V and W
W and U
(E
U
), (E
V
), (E
W
)
U, V, W (I
U
),(I
V
),(I
W
)
Between U and V, V and W
(W
01
),(W
02
)
W
01
W
02
Measurement
item
Supply voltage
E
1
Supply current
I
1
Supply power
W
1
Supply power
factor
Pf
1
Output voltage
E
0
Output current
I
0
Output power
W
0
Output power
factor
Pf
0
Calculate the output power factor from the output voltage E, output current I,
and output power W.
P f
0
=
W
0
100(%)
E
0
I
0
3
P f
1
=
W
1
100(%)
E
1
I
1
3
Between R and S, S and T,
T and R (E
R
),(E
S
),(E
T
)
Between R and S, S and T,
T (W
I1
) (W
I2
)
R , S, T (I
R
), (I
S
), (I
T
)
Parts to be measured
Measuring instrument
Moving-iron type
voltmeter or rectifier
type voltmeter
Moving-iron type
ammeter
Electrodynamic
type wattmeter
Rectifier type
voltmeter
Moving-iron type
ammeter
Electronic type
wattmeter
Remarks
Fundamental wave
effective value
Total effective value
Total effective value
Total effective value
Total effective value
Total effective value
Calculate the supply power factor from the measured supply voltage E
1
,
supply current I
1
, and supply power W
1
.
v
Table 3 Parts to be measured
Summary of Contents for J300 series
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Page 74: ...J3005 INSTRUCTION MANUAL HHIS WZ PE 002 02 ...
Page 88: ...J3005 INSTRUCTION MANUAL 11 STANDARD SPECIFICATIONS ...
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Page 131: ...J3005 INSTRUCTION MANUAL Appendix 5 Multi Motor Operation and Precautions for Operation ...
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