Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 39 / 608

Wiring Inverter and peripheral devices
FR-E700 SC EC/ENE 3 - 3
3.1.1 Peripheral devices
Check the motor capacity of the inverter you purchased. Appropriate peripheral devices must be se-
lected according to the capacity. Refer to the following list and prepare appropriate peripheral
devices:
햲
Select the MCCB according to the inverter power supply capacity. Install one MCCB per inverter.
The places with "xx" refer to the breaking capacity in case of short circuit. The correct selection
must be done depending on the design of the power input wiring.
햳
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.
Motor Output [kW] Applicable Inverter Type
Breaker Selection
햲
Input Side Magnetic
Contactor
햳
Reactor Connection Reactor Connection
Without With Without With
200 V
class
0.1 FR-E720S-008SC
NF32 xx 3P 5 A
S-N10
0.2 FR-E720S-015SC
0.4 FR-E720S-030SC NF32 xx 3P 10 A
0.75 FR-E720S-050SC NF32 xx 3P 15 A NF32 xx 3P 10 A
1.5 FR-E720S-080SC NF63 xx 3P 20 A
2.2 FR-E720S-110SC NF32 xx 3P 40 A NF32 xx 3P 32 A S-N20, S-N21 S-N10
400 V
class
0.4 FR-E740-016SC
NF32 xx 3P 5 A
S-N10
0.75 FR-E740-026SC
1.5 FR-E740-040SC NF32 xx 3P 10 A
2.2 FR-E740-060SC NF32 xx 3P 15 A NF32 xx 3P 10 A
3.7 FR-E740-095SC NF63 xx 3P 20 A NF32 xx 3P 15 A
5.5 FR-E740-120SC NF63 xx 3P 30 A NF63 xx 3P 20 A S-N20 S-N11
7.5 FR-E740-170SC NF63 xx 3P 30 A NF63 xx 3P 30 A
S-N20
11 FR-E740-230SC NF63 xx 3P 50 A NF63 xx 3P 40 A
15 FR-E740-300SC NF125 xx 3P 100 A NF63 xx 3P 50 A S-N25 S-N20
Tab. 3-1: Breakers and contactors
Fig. 3-2:
Installation of the breakers
I001332E
NOTES
When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic con-
tactor according to the inverter type and cable and reactor according to the motor output.
When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), dam-
age to internal parts of the inverter, etc. Identify the cause of the trip, then remove the cause and
power on the breaker.
3
3
Inverter
MCCB Inverter
MCCB