Peripheral Devices - Mitsubishi Electric FR-D720 K Series Instruction Manual

Inverter and peripheral devices
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.
Applicable Inverter
Model
FR-D720-0.1K
FR-D720-0.2K
FR-D720-0.4K
FR-D720-0.75K
FR-D720-1.5K
FR-D720-2.2K
FR-D720-3.7K
FR-D720-5.5K
FR-D720-7.5K
FR-D720-11K
FR-D720-15K
FR-D740-0.4K
FR-D740-0.75K
FR-D740-1.5K
FR-D740-2.2K
FR-D740-3.7K
FR-D740-5.5K
FR-D740-7.5K
FR-D740-11K
FR-D740-15K
FR-D720S-0.1K
FR-D720S-0.2K
FR-D720S-0.4K
FR-D720S-0.75K
FR-D720S-1.5K
FR-D720S-2.2K
FR-D710W-0.1K
FR-D710W-0.2K
FR-D710W-0.4K
FR-D710W-0.75K

Select a MCCB according to the power supply capacity.
Install one MCCB per inverter.
For the use in the United States or Canada, refer to "Instructions for UL and cUL" in the Instruction Manual (Basic),
and select an appropriate fuse or molded case circuit breaker (MCCB).

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.
If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated current. When
using an MC on the inverter output side for commercial-power supply operation switching using a general-purpose motor, select an MC regarding the motor
rated current as JEM1038-AC-3 class rated current.

When connecting a single-phase 100V power input model to a power transformer (50kVA or more), install an AC reactor (FR-HAL) so that the performance
is more reliable. (Refer to page 47 for details.)

The power factor may be slightly lower.

Single-phase 100V power input model is not compatible with DC reactor.
NOTE

When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the inverter model,
and cable and reactor 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.
4
Molded Case Circuit
Breaker (MCCB) 
or Earth Leakage Circuit
Motor
Breaker (ELB)
Output
(NF or NV type)
(kW)
Reactor or Filterpack
connection
without
0.1 5A
0.2 5A
0.4 5A
0.75 10A
1.5 15A
2.2 20A
3.7 30A
5.5 50A
7.5 60A
11 75A
15 125A
0.4 5A
0.75 5A
1.5 10A
2.2 15A
3.7 20A
5.5 30A
7.5 30A
11 50A
15 60A
0.1 5A
0.2 5A
0.4 10A
0.75 15A
1.5 20A
2.2 40A
0.1 10A
0.2 10A
0.4 15A
0.75 30A
Input Side Magnetic
Contactor (MC) 
Reactor or Filterpack
connection
with without
5A S-T10
5A S-T10
5A S-T10
5A S-T10
10A S-T10
15A S-T10
30A S-T21
40A S-T35
50A S-T35
75A S-T35
100A S-T50
5A S-T10
5A S-T10
10A S-T10
10A S-T10
15A S-T10
20A S-T21
30A S-T21
40A S-T21
50A S-T35
5A S-T10
5A S-T10
10A S-T10
10A S-T10
20A S-T10
30A S-T21
5A S-T10
10A S-T10
15A S-T10
20A S-T10
Reactor
FR-HAL FR-HEL
with
S-T10 0.4K 0.4K
S-T10 0.4K 0.4K
S-T10 0.4K 0.4K
S-T10 0.75K 0.75K
S-T10 1.5K 1.5K
S-T10 2.2K 2.2K
S-T10 3.7K 3.7K
S-T21 5.5K 5.5K
S-T35 7.5K 7.5K
S-T35 11K 11K
S-T50 15K 15K
S-T10 H0.4K H0.4K
S-T10 H0.75K H0.75K
S-T10 H1.5K H1.5K
S-T10 H2.2K H2.2K
S-T10 H3.7K H3.7K
S-T12 H5.5K H5.5K
S-T21 H7.5K H7.5K
S-T21 H11K H11K
S-T21 H15K H15K
S-T10 0.4K 0.4K
S-T10 0.4K 0.4K
S-T10 0.75K 0.75K
S-T10 1.5K 1.5K
S-T10 2.2K 2.2K
S-T10 3.7K 3.7K
S-T10 0.75K, —
S-T10 1.5K, —
S-T10 2.2K, —
S-T10 3.7K, —
MCCB INV
MCCB INV
IM
IM