Connections; Power Supply, Motor And Earth Connections - Mitsubishi Electric FR-A800 Series Beginner's Manual

Connections

3 Connections
WARNING:
P
● Always disconnect the power before performing any wiring work on frequency inverters.
Frequency inverters contain high voltages that are potentially lethal.
● After switching off the power supply always wait for at least 10 minutes before proceeding
to allow the charge in the inverter's capacitors to drop to safe levels and check for residual
voltage between terminal P/+ and N/- with a meter etc., to avoid a hazard of electrical shock.
3.1

Power supply, motor and earth connections

The models of the FR-A820/A840/A846 series must be connected directly to a 3-phase AC power sup-
ply. The FR-A842 models must be operated with a converter unit (FR-CC2), which has to be operated
separately. For more details about the installation of the converter unit please refer to the corre-
sponding FR-CC2 Instruction Manual.
FR-A800 mains power supply specifications
Power supply
Voltage
Permissible input
voltage range
Frequency
Frequency Inverters - Beginner's Guide
FR-A820 FR-A840/A846
3-phase, 200–240 V AC, 3-phase, 380–500 V AC,
−15 % / +10 % −15 % / +10 %
170–264 V AC 323–550 V AC
50 / 60 Hz ± 5 %
Power supply, motor and earth connections
FR-A800
FR-A842
DC power supply
430–780 V DC
—
—
Auxiliary control
power supply
1-phase, 380–500 V AC,
± 10 %
342–550 V AC
50 / 60 Hz ± 5 %
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