Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 29

Symb
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(a) Inverter (FR-A800)
(b) Three-phase AC power supply
Molded case circuit breaker (MCCB), earth
(c)
leakage circuit breaker (ELB), or fuse
(d) Magnetic contactor (MC)
(e) AC reactor (FR-HAL)
(f) DC reactor (FR-HEL)
(g) Noise filter (FR-BLF)
(h) High power factor converter (FR-HC2)
Power regeneration common converter
(i)
*1
(FR-CV )
(j)
Power regeneration converter (MT-RC
(k)
Brake unit (FR-BU2, FR-BU
(l)
Resistor unit (FR-BR
(m) USB connection
(n)
High-duty brake resistor (FR-ABR
Noise filter (ferrite core) (FR-BSF01, FR-
(o)
BLF)
(p) Induction motor
Contactor
(q)
Example) No-fuse switch (DSN type)
(r) IPM motor (MM-CF)
*1 Compatible with the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower.
*2 Compatible with the FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
*3 Compatible with the FR-A820-01250(22K) or lower and FR-A840-00620(22K) or lower.
28
2. INSTALLATION AND WIRING
2.1 Peripheral devices
Name
The life of the inverter is influenced by the surrounding air temperature.
The surrounding air temperature should be as low as possible within the
permissible range. This must be noted especially when the inverter is
installed in an enclosure.
Incorrect wiring may lead to damage of the inverter. The control signal lines
must be kept fully away from the main circuit lines to protect them from
noise.
The built-in EMC filter can reduce the noise.
Must be within the permissible power supply specifications of the inverter.
Must be selected carefully since an inrush current flows in the inverter at
power ON.
Install this to ensure safety.
Do not use this to start and stop the inverter. Doing so will shorten the life
of the inverter.
Install this to suppress harmonics and to improve the power factor.
An AC reactor (FR-HAL) (option) is required when installing the inverter
near a large power supply system (1000 kVA or more). Under such
condition, the inverter may be damaged if you do not use a reactor.
Select a reactor according to the applied motor capacity.
Install this to suppress harmonics and to improve the power factor.
Select a reactor according to the applied motor capacity.
For the FR-A820-03800(75K) or higher, FR-A840-02160(75K) or higher, or
a motor with a capacity of 75 kW or higher, always connect the FR-HEL.
When using the DC reactor with the FR-A820-03160(55K) or lower, FR-
A840-01800(55K) or lower, remove the jumper across terminals P/+ and P1
before connecting the DC reactor to the inverter.
The FR-A820-03160(55K) or lower, FR-A840-01800(55K) or lower are
equipped with the common mode choke.
Suppresses the power supply harmonics significantly. Install this as
required.
Provides a large braking capability. Install this as required.
*2
)
*1 *1
, BU )
Allows the inverter to provide the optimal regenerative braking capability.
Install this as required.
*1 *2
, MT-BR5 )
Connect between the inverter and a personal computer with a USB (ver.
1.1) cable.
Use a USB memory device to copy parameter settings or use the trace
function.
Improves the braking capability of the inverter built-in brake.
Remove the jumper across terminals PR and PX to connect this. (7.5K or
*3
lower)
)
Always install a thermal relay when using a brake resistor whose capacity
is 11K or higher.
Install this to reduce the electromagnetic noise generated from the inverter.
The noise filter is effective in the range from about 0.5 to 5 MHz. A wire
should be wound four turns at maximum.
Connect a squirrel-cage induction motor.
Connect this for an application where a PM motor is driven by the load even
while the inverter power is OFF. Do not open or close the contactor while
the inverter is running (outputting).
Use the specified motor. An IPM motor cannot be driven by the commercial
power supply.
Overview
Refer to
page
37, 46,
118
790
29
126
125
125
116
103
103
105
100
84
96
116
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