Mitsubishi Electric FREQROL HC Instruction Manual page 37

Wiring example for commercial
power supply-inverter switch-
over
Reactor 1
(FR-HCL01)
NFB MC1
R
S
T
• Complicated sequence circuit for commercial power supply-inverter
switch-over
The following example shows wiring for connection of a commercial
power supply. (FR-A500 series) When making connection, always
provide interlocks between magnetic contactors MC2 and MC3:
External box
(FR-HCB)
MC1
MC2
(FR-HCL02)
Resistor
R2
R3
R2
S2
S3
S2
MC
S3
T2
T3
T2
Resistor
Filter capacitor
Note: Keep the high power factor converter's terminals R1, S1 unconnected.
High power factor
converter (FR-HC)
MC1
MC2
Reactor 2
R4 R4
R3
S4 S4
T3 T4 T4
RDY
RSO
Y1 or Y2
R
SE
S
T
R1
(Note)
S1
- 28 -
MC2
Inverter
(FR-A500 series)
R
S
T
MC3
P P
U
V
W
N N
X10
RES
X11
SD
R1
S1
Motor