Mitsubishi Electric 800 Series Instruction Manual page 20

Symbol Name
(a) Inverter (FR-A860)
(b) Three-phase AC power supply
Molded case circuit breaker (MCCB),
(c) earth leakage circuit breaker (ELB), or
fuse
(d) Magnetic contactor (MC)
(e) AC reactor
(f) DC reactor
(g) Noise filter
(h) USB connection
(i) Provided brake resistor
(j) Brake resistor

(k) Noise filter
(l) Induction motor
Contactor
(m)
Example) No-fuse switch (DSN type)
(n) PM motor

Compatible with the FR-A860-01080 or lower.
Overview
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.
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 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 applicable motor capacity.
For the FR-A860-01440 or higher, or a motor with a capacity of 75 kW or
higher, always connect a DC reactor.
When using the DC reactor with the FR-A860-01080 or lower, remove the
jumper across terminals P/+ and P1 before connecting the DC reactor to
the inverter.
Suppresses the noise radiated from the power supply side of the inverter.
A USB (Ver. 1.1) cable connects the inverter with a personal computer.
A USB memory device enables parameter copies and the trace function.
Improves the braking capability.
This brake resistor is provided with the FR-A860-00090 or lower.
Improves the braking capability.
Install a thermal relay to prevent an overheat and burnout of the brake
resistor.
Install this to reduce the electromagnetic noise generated from the
inverter. The noise filter is effective in the range from about 0.5 MHz 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).
A PM motor can be used. A PM motor cannot be driven by the
commercial power supply.
Peripheral devices
INSTALLATION AND WIRING
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