Mitsubishi Electronics FR-A701 ユーザーズマニュアル
3
Inverter and peripheral devices
1
1.2.1
Peripheral devices
Check the inverter model of the inverter you purchased. Appropriate peripheral devices must be selected according to
the capacity. Refer to the following list and prepare appropriate peripheral devices:
200V class
400V class
Motor Output
(kW)
Applicable Inverter Model
Breaker Selection
Input Side Magnetic Contactor
5.5
FR-A721-5.5K
40A
S-N20, N21
7.5
FR-A721-7.5K
50A
S-N25
11
FR-A721-11K
75A
S-N35
15
FR-A721-15K
100A
S-N50
18.5
FR-A721-18.5K
125A
S-N50
22
FR-A721-22K
150A
S-N65
30
FR-A721-30K
175A
S-N80
37
FR-A721-37K
225A
S-N125
45
FR-A721-45K
300A
S-N150
55
FR-A721-55K
350A
S-N180
Motor Output
(kW)
Applicable Inverter Model
Breaker Selection
Input Side Magnetic Contactor
5.5
FR-A741-5.5K
20A
S-N11, N12
7.5
FR-A741-7.5K
30A
S-N20, N21
11
FR-A741-11K
40A
S-N20, N21
15
FR-A741-15K
50A
S-N20, N21
18.5
FR-A741-18.5K
60A
S-N25
22
FR-A741-22K
75A
S-N25
30
FR-A741-30K
100A
S-N50
37
FR-A741-37K
125A
S-N50
45
FR-A741-45K
150A
S-N65
55
FR-A741-55K
175A
S-N80
*1
Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 200VAC/400VAC 50Hz.
*2
Select the MCCB according to the inverter power supply capacity.
Install one MCCB per inverter.
For the use in the United States or Canada, provide the appropriate UL and cUL listed Class RK5 or Class T
type fuse or UL 489 molded case circuit breaker (MCCB) that is suitable for branch circuit protection.
(Refer to page 199.)
Install one MCCB per inverter.
For the use in the United States or Canada, provide the appropriate UL and cUL listed Class RK5 or Class T
type fuse or UL 489 molded case circuit breaker (MCCB) that is suitable for branch circuit protection.
(Refer to page 199.)
*3
Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.
CAUTION
· When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the
inverter model and cable according to the motor output.
· When the breaker on the inverter input side trips, check for the wiring fault (short circuit), damage to internal parts of the
inverter, etc. Identify the cause of the trip, then remove the cause and power on the breaker.
MCCB
INV
MCCB
INV
IM
IM