2.
Chapter 2
2.4 Inverter Wiring
Applicable peripheral equipment
R S T
R0
T0
Power
supply
U V W
PD
P
N
Motor
M
RB
INV
<12>
<13>
Chapter 2
Inverter Wiring
Applicable peripheral equipment
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
<10>
<11>
<12>
<13>
<14>
Applicable peripheral equipment
No.
<1>
Electric wire
<2>
Earth-leakage circuit breaker EL
MCCB
<3>
Magnetic contacto
<4>
Input AC
(For harmonic control, power supply
coordination, and power factor
correction)
<5>
Noise filter for inverter
<6>
Radio noise filter
(Zero-phase reactor)
<7>
Radio noise filter on the input side
(Capacitor filter)
<8>
DC Choke
<9>
Braking resistor
<10> Regenerative braking unit
<11> Noise filter on the output side
<12> Radio noise filter
(Zero-phase reactor)
<13> Output
For reducing vibrations and
preventing thermal relay
malfunction
<14> LCR filter
Notes:
• The description of peripheral equipment is for Hitachi 3
• Select breakers with proper interrupting capacity. (Use inverter
• Use
• Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
• If the power line exceeds 20 m, use cable with ma
• Tighten each termina
Loose terminal screws may cause short circuits and fire.
Excessive tightening torque may cause damage to the terminal block or inverter body.
• When selecting a rated sensitivity current for earth
separated breaker considering a total cable length of between Inverter
Inverter
Use a delayed
• When using a CV cable for wiring through a metal conduit, the average current leakage
would be 30mA/km.
• When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ELCB with rated sensitivity current by eight times
cable length exceeds 100 m, use a CV cable.
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
Applicable peripheral equipment
Name
Electric wire
leakage circuit breaker EL
Magnetic contactor MC
AC reactor
(For harmonic control, power supply
coordination, and power factor
correction)
filter for inverter
Radio noise filter
phase reactor)
Radio noise filter on the input side
(Capacitor filter)
Choke
Braking resistor
Regenerative braking unit
Noise filter on the output side
Radio noise filter
phase reactor)
Output AC reactor
For reducing vibrations and
preventing thermal relay
malfunction
LCR filter
Notes:
The description of peripheral equipment is for Hitachi 3
Select breakers with proper interrupting capacity. (Use inverter
Use earth-leakage circuit breakers
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
If the power line exceeds 20 m, use cable with ma
Tighten each termina
Loose terminal screws may cause short circuits and fire.
Excessive tightening torque may cause damage to the terminal block or inverter body.
When selecting a rated sensitivity current for earth
separated breaker considering a total cable length of between Inverter
Inverter–Motor distance. Do not use a high
Use a delayed-type circuit breaker, because the high
When using a CV cable for wiring through a metal conduit, the average current leakage
would be 30mA/km.
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ELCB with rated sensitivity current by eight times
cable length exceeds 100 m, use a CV cable.
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
2-6
See "Recommended cable
terminals” on Page 2
leakage circuit breaker ELCB or
(For harmonic control, power supply
coordination, and power factor
Use
voltage imbalance exceeds 3% or more, or
capacity is
change rapidly. This reactor also improves the power factor.
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
the primary side (input side) of the inverter.
The inverter may generate radio noise through power supply wiring
during operation.
Use this noise filter to reduce the radio noise (radiant noise).
Radio noise filter on the input side
Use this noise filter to reduce the radiant
cables.
Use
Use these devices to increase the braking torque of the inverter for
operation in which the inverter turns the connected
very frequently or decelerates the load running with a high moment
of inertia.
Regenerative braking unit
Noise filter on the output side
Connect this noise filter between the inverter and motor to reduce
the radiant noise
the electromagnetic interference with radio and television reception
and preventing malfunctions of measuring equipment and sensors.
Use this noise filter to
side of the inverter. (This noise filter can be used on both the input
and output sides.)
For reducing vibrations and
preventing thermal relay
Inverter drive
commercial power supply direct
Connect
the pulsation of motor. Also, connect
cable length between
to prevent thermal relay malfunction due to the harmonic waves
generated by switching operation o
relay can be replaced with a current sensor to avoid the
malfunction.
Connect
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
cables. Surge voltage can be also controlled.
The description of peripheral equipment is for Hitachi 3
Select breakers with proper interrupting capacity. (Use inverter
leakage circuit breakers
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
If the power line exceeds 20 m, use cable with ma
Tighten each terminal screw with the specified tightening torque.
Loose terminal screws may cause short circuits and fire.
Excessive tightening torque may cause damage to the terminal block or inverter body.
When selecting a rated sensitivity current for earth
separated breaker considering a total cable length of between Inverter
Motor distance. Do not use a high
type circuit breaker, because the high
When using a CV cable for wiring through a metal conduit, the average current leakage
would be 30mA/km.
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ELCB with rated sensitivity current by eight times
cable length exceeds 100 m, use a CV cable.
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
See "Recommended cable
terminals” on Page 2
Use input reactor
voltage imbalance exceeds 3% or more, or
capacity is over 500 kVA or more, or when the power voltage may
change rapidly. This reactor also improves the power factor.
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
the primary side (input side) of the inverter.
The inverter may generate radio noise through power supply wiring
during operation.
Use this noise filter to reduce the radio noise (radiant noise).
Use this noise filter to reduce the radiant
cables.
Use DC chokes to
Use these devices to increase the braking torque of the inverter for
operation in which the inverter turns the connected
very frequently or decelerates the load running with a high moment
of inertia.
Connect this noise filter between the inverter and motor to reduce
the radiant noise
the electromagnetic interference with radio and television reception
and preventing malfunctions of measuring equipment and sensors.
Use this noise filter to
side of the inverter. (This noise filter can be used on both the input
and output sides.)
nverter driven motor may cause large vibrations compared
commercial power supply direct
Connect Output AC reactor between inverter and motor to lessen
the pulsation of motor. Also, connect
cable length between
to prevent thermal relay malfunction due to the harmonic waves
generated by switching operation o
relay can be replaced with a current sensor to avoid the
malfunction.
Connect this noise filter between the inverter and motor to convert
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
cables. Surge voltage can be also controlled.
The description of peripheral equipment is for Hitachi 3
Select breakers with proper interrupting capacity. (Use inverter
leakage circuit breakers (ELB or MCB)
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
If the power line exceeds 20 m, use cable with ma
l screw with the specified tightening torque.
Loose terminal screws may cause short circuits and fire.
Excessive tightening torque may cause damage to the terminal block or inverter body.
When selecting a rated sensitivity current for earth
separated breaker considering a total cable length of between Inverter
Motor distance. Do not use a high-speed type of earth
type circuit breaker, because the high
When using a CV cable for wiring through a metal conduit, the average current leakage
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ELCB with rated sensitivity current by eight times
cable length exceeds 100 m, use a CV cable.
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
Installation and Wiring
Total cable length
100 m or less
300 m or less
Function
See "Recommended cable gauges, wiring accessories, and crimp
terminals” on Page 2-9.
reactor for harmonic wave
voltage imbalance exceeds 3% or more, or
500 kVA or more, or when the power voltage may
change rapidly. This reactor also improves the power factor.
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
the primary side (input side) of the inverter.
The inverter may generate radio noise through power supply wiring
during operation.
Use this noise filter to reduce the radio noise (radiant noise).
Use this noise filter to reduce the radiant
to reduce the harmonic generated by the inverter.
Use these devices to increase the braking torque of the inverter for
operation in which the inverter turns the connected
very frequently or decelerates the load running with a high moment
Connect this noise filter between the inverter and motor to reduce
the radiant noise radiated from cables for the purpose of reducing
the electromagnetic interference with radio and television reception
and preventing malfunctions of measuring equipment and sensors.
Use this noise filter to reduce the noise generated on the output
side of the inverter. (This noise filter can be used on both the input
and output sides.)
motor may cause large vibrations compared
commercial power supply direct start
AC reactor between inverter and motor to lessen
the pulsation of motor. Also, connect
cable length between inverter and mo
to prevent thermal relay malfunction due to the harmonic waves
generated by switching operation o
relay can be replaced with a current sensor to avoid the
this noise filter between the inverter and motor to convert
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
cables. Surge voltage can be also controlled.
The description of peripheral equipment is for Hitachi 3-phase, 4
Select breakers with proper interrupting capacity. (Use inverter
(ELB or MCB) to ensure safety.
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
If the power line exceeds 20 m, use cable with major wire size for the power line.
l screw with the specified tightening torque.
Loose terminal screws may cause short circuits and fire.
Excessive tightening torque may cause damage to the terminal block or inverter body.
When selecting a rated sensitivity current for earth-leakage circu
separated breaker considering a total cable length of between Inverter
speed type of earth
type circuit breaker, because the high-speed typ
When using a CV cable for wiring through a metal conduit, the average current leakage
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ELCB with rated sensitivity current by eight times higher in the table bel
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
Installation and Wiring
Total cable length
Sensitivity current (mA)
100 m or less
300 m or less
Function
gauges, wiring accessories, and crimp
harmonic wave control, or when power supply
voltage imbalance exceeds 3% or more, or when the power supply
500 kVA or more, or when the power voltage may
change rapidly. This reactor also improves the power factor.
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
the primary side (input side) of the inverter.
The inverter may generate radio noise through power supply wiring
Use this noise filter to reduce the radio noise (radiant noise).
Use this noise filter to reduce the radiant noise radiated from input
the harmonic generated by the inverter.
Use these devices to increase the braking torque of the inverter for
operation in which the inverter turns the connected
very frequently or decelerates the load running with a high moment
Connect this noise filter between the inverter and motor to reduce
radiated from cables for the purpose of reducing
the electromagnetic interference with radio and television reception
and preventing malfunctions of measuring equipment and sensors.
reduce the noise generated on the output
side of the inverter. (This noise filter can be used on both the input
motor may cause large vibrations compared
start motor.
AC reactor between inverter and motor to lessen
the pulsation of motor. Also, connect output AC reactor, when the
inverter and motor is longer
to prevent thermal relay malfunction due to the harmonic waves
generated by switching operation of inverter. Note that the thermal
relay can be replaced with a current sensor to avoid the
this noise filter between the inverter and motor to convert
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
cables. Surge voltage can be also controlled.
phase, 4-pole squirrel
Select breakers with proper interrupting capacity. (Use inverter-ready breakers)
to ensure safety.
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
or wire size for the power line.
l screw with the specified tightening torque.
Excessive tightening torque may cause damage to the terminal block or inverter body.
leakage circuit breaker, use a
separated breaker considering a total cable length of between Inverter-Power supply and
speed type of earth-leakage circuit breaker.
speed type may malfunction.
When using a CV cable for wiring through a metal conduit, the average current leakage
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
in the table below. If the total
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
Installation and Wiring
Sensitivity current (mA)
50
100
gauges, wiring accessories, and crimp
control, or when power supply
when the power supply
500 kVA or more, or when the power voltage may
change rapidly. This reactor also improves the power factor.
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
The inverter may generate radio noise through power supply wiring
Use this noise filter to reduce the radio noise (radiant noise).
noise radiated from input
the harmonic generated by the inverter.
Use these devices to increase the braking torque of the inverter for
operation in which the inverter turns the connected load on and off
very frequently or decelerates the load running with a high moment
Connect this noise filter between the inverter and motor to reduce
radiated from cables for the purpose of reducing
the electromagnetic interference with radio and television reception
and preventing malfunctions of measuring equipment and sensors.
reduce the noise generated on the output
side of the inverter. (This noise filter can be used on both the input
motor may cause large vibrations compared to
AC reactor between inverter and motor to lessen
AC reactor, when the
er (10 m or more),
to prevent thermal relay malfunction due to the harmonic waves
inverter. Note that the thermal
relay can be replaced with a current sensor to avoid the
this noise filter between the inverter and motor to convert
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
pole squirrel-cage motor.
ready breakers)
Use copper electric wire (HIV cable) with allowable temperature rating 75°C or more.
or wire size for the power line.
Excessive tightening torque may cause damage to the terminal block or inverter body.
it breaker, use a
Power supply and
leakage circuit breaker.
e may malfunction.
When using a CV cable for wiring through a metal conduit, the average current leakage
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ow. If the total
•Do not pull the power line cable after wiring. Doing so may cause screw loosening.
Installation and Wiring
Sensitivity current (mA)
gauges, wiring accessories, and crimp
control, or when power supply
when the power supply
500 kVA or more, or when the power voltage may
This noise filter reduces the conductive noise that is generated by
the inverter and transmitted in cables. Connect this noise filter to
The inverter may generate radio noise through power supply wiring
noise radiated from input
Use these devices to increase the braking torque of the inverter for
load on and off
very frequently or decelerates the load running with a high moment
Connect this noise filter between the inverter and motor to reduce
radiated from cables for the purpose of reducing
the electromagnetic interference with radio and television reception
reduce the noise generated on the output
side of the inverter. (This noise filter can be used on both the input
to
AC reactor between inverter and motor to lessen
AC reactor, when the
(10 m or more),
to prevent thermal relay malfunction due to the harmonic waves
inverter. Note that the thermal
relay can be replaced with a current sensor to avoid the
this noise filter between the inverter and motor to convert
the inverter output into a sinusoidal waveform and to reduce the
motor vibration, motor noise and the radiant noise radiated from
it breaker, use a
Power supply and
leakage circuit breaker.
When using a CV cable for wiring through a metal conduit, the average current leakage
When using a high relative dielectric constant cable such as IV cable, the leakage current is
about eight times as high as the standard cable. Therefore, when using an IV cable, use
ow. If the total
Summary of Contents for P1-00041HFEF
Page 6: ...0 5 Contents Contents Memo ...
Page 42: ...2 26 Chapter 2 Installation and Wiring Memo ...
Page 129: ...Index Index 3 memo ...
Page 130: ...Index Index 4 memo ...
