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Peripheral devices
2.1 Peripheral devices
Check the drive unit model of the drive unit you purchased. Appropriate peripheral devices must be selected according to the
capacity.
Refer to the following list and prepare appropriate peripheral devices.
∗1 ySelect a MCCB according to the power supply capacity.
yInstall one MCCB per drive unit.
∗2 For the use in the United States or Canada, select a UL and cUL certified fuse with Class T fuse equivalent cut-off
speed or faster with the appropriate rating for branch circuit protection. Alternatively, select a UL489 molded case
circuit breaker (MCCB). (Refer to page 44)
∗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.
If using an MC for emergency stop during motor driving, select an MC regarding the drive unit input side current as JEM1038-AC-3 class rated current.
∗4 The power factor may be slightly lower.
NOTE
y The life of the drive unit is influenced by surrounding air temperature. The surrounding air temperature should be as
low as possible within the permissible range. This must be noted especially when the drive unit is installed in an
enclosure. ( Refer to Chapter1 of the Instruction Manual(Applied))
y Wrong wiring might lead to damage of the drive unit. The control signal lines must be kept fully away from the main
circuit to protect them from noise. (Refer to page 8)
y Do not install a power factor correction capacitor, surge suppressor or EMC filter (capacitor) on the drive unit output
side. This will cause the drive unit to trip or the capacitor and surge suppressor to be damaged. If any of the above
devices are connected, immediately remove them.
y Electromagnetic wave interference
The input/output (main circuit) of the drive unit includes high frequency components, which may interfere with the
communication devices (such as AM radios) used near the drive unit. In this case, install the FR-BIF optional EMC
filter (capacitor) (for use in the input side only) or FR-BSF01 or FR-BLF EMC filter (ferrite core) to minimize
interference. ( Refer to Chapter 3 of the Instruction Manual (Applied)).
y Refer to the Instruction Manual of each option and peripheral devices for details of peripheral devices.
y A PM motor cannot be driven by the commercial power supply.
y A PM motor is a magnet motor. High-voltage is generated at motor terminals while the motor is running even after the
drive unit power is turned OFF. Before closing the contactor at the output side, make sure that the drive unit power is
ON and the motor is stopped.
Drive unit Model
Motor
Output
(kW)
Moulded Case Circuit Breaker
(MCCB) ∗1
or Earth Leakage Circuit Breaker
(ELB) ∗2
Magnetic Contactor (MC)
∗3
Reactor
Reactor connection Reactor connection
FR-HAL FR-HEL
without with without with
Three-Phase 200V
FR-D720-0.2K-G 0.1 5A 5A S-N10 S-N10 0.4K ∗4 0.4K ∗4
FR-D720-0.4K-G 0.2 5A 5A S-N10 S-N10 0.4K ∗4 0.4K ∗4
FR-D720-0.75K-G 0.4 10A 5A S-N10 S-N10 0.4K 0.4K
FR-D720-1.5K-G 0.75 15A 10A S-N10 S-N10 0.75K 0.75K
FR-D720-2.2K-G 1.5 20A 15A S-N10 S-N10 1.5K 1.5K
FR-D720-3.7K-G 2.2 30A 30A S-N20, S-N21 S-N10 2.2K 2.2K
NOTE
y Select a MCCB and a magnetic contactor according to the drive unit model, and cable and reactor according to the motor output.
y When the breaker on the drive unit input side trips, check for the wiring fault (short circuit), damage to internal parts of the drive unit,
etc. Identify the cause of the trip, then remove the cause and power ON the breaker.
MCCB
Drive
unit
Drive
unit
MCCB
IM
IM