Mitsubishi Electric FR-A800 Series Beginner's Manual page 34

Power supply, motor and earth connections
The three-phase AC mains power supply is connected to terminals R/L1, S/L2 and T/L3 of the inverter
(resp. the converter unit for FR-A842 inverters).
The motor is connected to terminals U, V and W.
The inverter must also be grounded with a cable connected to the protective earth terminal.
WARNING:
P
Never connect mains power to the output terminals U, V or W! This would cause permanent
damage to the inverter and would also create a serious shock hazard for the operator!
The schematic illustration below shows the basic input and output connections of a frequency in-
verter.
3-phase connection
3-phase connection of converter unit (FR-CC2) with inverter (FR-A842)
3 - 2
Power supply
PE
Converter unit
Q1
I
R/L1
Power
I
S/L2
supply
I
T/L3
PE
Inverter FR-A800/A806
Q1
I R/L1
I
S/L2
I T/L3
Inverter FR-A842
FR-CC2
P/+
P/+
N/–
N/–
U
V
W
N/−
P1
P/+
U
V
W
Connections