Peripheral Devices - Mitsubishi Electric 800 Series Instruction Manual

2.1.2

Peripheral devices

Check the model of the inverter you purchased. Appropriate peripheral devices must be selected according to the capacity.
Refer to the following table for right selection.
 Molded case circuit breaker / earth leakage circuit breaker
• The following shows the rated current of the molded case circuit breaker (MCCB) or earth leakage circuit breaker (ELB).
Inverter model
FR-E860-0017(0.75K)
FR-E860-0027(1.5K)
FR-E860-0040(2.2K)
FR-E860-0061(3.7K)
FR-E860-0090(5.5K)
FR-E860-0120(7.5K)
NOTE
• Select an 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
document enclosed with the product, and select an appropriate fuse or molded case circuit breaker (MCCB).
• When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the
inverter model, and select cables and reactors according to the motor output.
• When the breaker installed on the inverter input side is shut off, check for the wiring fault (short circuit), damage to internal
parts of the inverter etc. The cause of the output shutoff must be identified and removed before turning ON the power of the
breaker.
 Magnetic contactor at the inverter's input line
• This is a matrix showing the model name of the Mitsubishi magnetic contactor to be installed at the inverter's input line
according to the selected inverter and rating.
Inverter model
FR-E860-0017(0.75K)
FR-E860-0027(1.5K)
FR-E860-0040(2.2K)
FR-E860-0061(3.7K)
FR-E860-0090(5.5K)
FR-E860-0120(7.5K)
NOTE
• The matrix shows the magnetic contactor selected according to the standards of Japan Electrical Manufacturers' Association
(JEM standards) for AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the MC is used for
emergency stops during motor driving, the electrical durability is 25 times. If using the MC for emergency stop during motor
driving, select the MC for the inverter input current according to the rated current against JEM 1038 standards for AC-3 class.
When installing an MC on the inverter output side to switch to the commercial-power supply operation while running a general-
purpose motor, select the MC for the rated motor current according to the rated current against JEM 1038 standards for AC-
3 class.
• When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the
inverter model, and select cables and reactors according to the motor output.
• When the breaker installed on the inverter input side is shut off, check for the wiring fault (short circuit), damage to internal
parts of the inverter etc. The cause of the output shutoff must be identified and removed before turning ON the power of the
breaker.
24
2. Installation and Wiring
2.1 Peripheral devices
Without AC/DC power factor
improving reactor
LD
10 A 5 A
10 A 10 A
15 A 10 A
20 A 15 A
30 A 20 A
40 A 30 A
MCCB INV M
MCCB INV M
Without AC/DC power factor
improving reactor
LD
7 A 3 A
10 A 3 A
15 A 5 A
20 A 7 A
30 A 10 A
40 A 15 A
With AC/DC power factor improving
ND LD
5 A
10 A
10 A
15 A
20 A
30 A
With AC/DC power factor improving
ND LD
3 A
5 A
7 A
10 A
20 A
30 A
reactor
LD
5 A
5 A
10 A
10 A
15 A
20 A
reactor
ND
3 A
5 A
7 A
10 A
15 A
20 A