7-4
Installation & Connection
AC10 Inverter
Table 7-2
Item
Measuring Point
Measuring
Instrument
Remarks (Reference
Measurement Value)
Power supply
voltage V1
Across R-S,S-T, T-R
Moving-iron
type AC voltmeter
400V±15%
，
230V±15%
Power supply
side current I1
R, S, and T line
currents
Moving-iron
type AC voltmeter
Power supply
side power P1
At R, S and T, and
across R-S, S-T and
T-R
Electrodynamic type
single-phase
wattmeter
P1=W11+W12+W13
(3-wattmeter method
）
Power supply
side power factor
Pf1
Calculate after measuring power supply voltage, power supply side current
and power supply side power.[Three phase power supply]
%
100
1
1
3
1
1
×
×
=
I
V
P
Pf
Output side
voltage V2
Across U-V, V-W and
W-U
Rectifier type AC
voltmeter
(Moving-iron type
cannot measure)
Difference between the
phases is within ±1% of
the maximum output
voltage.
Output side
current I2
U, V and W line
currents
Moving-iron type AC
Ammeter
Current should be equal
to or less than rated
inverter current.
Difference between the
phases is 10% or lower of
the rated inverter current.
Output side
power P2
U, V, W and U-V,
V-W,W-U
Electro dynamic type
single-phase
wattmeter
P2 = W21 + W22
2-wattmeter method
Output side
power
factor Pf2
Calculate in similar manner to power supply side power factor:
%
100
2
2
3
2
2
×
×
=
I
V
P
Pf
Converter output Across P+
（
P
）
and -(N) Moving-coil type
(such as multi-meter)
DC voltage, the value is
1
2
V
×
Power supply of
control PCB
Across 10V-GND
Moving-coil type
(such as multi-meter) DC10V±0.2V
Across 24V-CM
Moving-coil type
(such as multi-meter) DC24V±1.5V
Analog output
AO1
Across AO1-GND
Moving-coil type
(such as multi-meter)
Approx. DC10V at max
frequency.
Alarm signal
Across TA/TC
Across TB/TC
Moving-coil type
(such as multi-meter)
<Normal> <Abnormal>
Across
TA/TC: Discontinuity
Continuity
Across
TB/TC: Continuity
Discontinuity
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ü
sdorfer Str. 8 - 25746 Heide - Lars Lornsen - T: +49 481 909 - 34 - [email protected] - www.tc-hydraulik.de
