Toshiba TOSVERT VF-AS3 Instruction Manual page 490

A connection example for installing the primary-side magnetic contactor (MC) is shown next.
Important
■ Installation on the secondary side
To switch the motor during the inverter is stopped, and change the motor power, a magnetic contac-
tor (MC) can be installed between the inverter and motor (secondary side).
When operating the motor with commercial power supply by switching the circuit and not through
the inverter, select a magnetic contactor (MC) with AC-3 Class and confirming to the motor rated
current.
9
A connection example for installing the secondary-side magnetic contactor (MC) is shown next.
10
10. Selection and installation of peripheral devices
MCCB or
ELCB MC
Power
supply
FLA
FLB
FLC
• Do not run/stop the inverter by turning the magnetic contactor (MC) installed on the primary
side ON/OFF. When run/stop the inverter, set the terminal [F] (forward) or terminal [R] (reverse)
of the control terminal ON/OFF.
• Install a surge absorber on the exciting coil of a magnetic contactor (MC).
MCCB or
MC2
ELCB
VF-AS3
R/L1
U/T1
Motor
M
S/L2
V/T2
W/T3
T/L3
Fwd run * Sink logic case
F
Rev run
R
CC
MC1
VF-AS3
MC3
U/T1
R/L1
S/L2 V/T2
T/L3 W/T3
FLA
FLB
FLC
10-8
E6582062
for control wiring
For motor protection
THR
Motor
M