EN-3
1. Transportation and installation
CAUTION
• Always transport the product with an appropriate amount according to the products weight.
• Install the inverter, dynamic braking unit and resistor, and other peripheral devices on
non-combustible material such as metal.
• Do not place the product near inflammable items.
• Do not hold the front cover while transporting the product.
• Do not let conductive materials such as screws or metal pieces and inflammable materials such as oil
enter the product.
• Install the product in a place that can withstand the weight of the product, and follow the instruction
manual.
• Do not install and operate an inverter that is damaged or that has missing parts.
• Always observe the conditions described in the instruction manual for the installation environment.
2. Wiring
DANGER
• Always turn the device's input power OFF before starting wiring.
• Carry out grounding that complies with the standards of the country where the inverter is being
installed.
• When using the PM motor, even if the inverter is stopped, the voltage will be generated at the output
terminal (U, V, W) during rotation. Always carry out wiring while the motor is stopped.
• Wiring must always be done by a qualified electrician.
• Always install the device before starting wiring.
• Prepare a breaker such as an MCCB or fuses that matches the capacity for the inverter's power supply
side.
CAUTION
• Do not connect an AC power supply to the output terminals (U, V, W).
• Confirm that the product's rated voltage and frequency match the power supply voltage and frequency.
• Install an overheating protection device on the dynamic braking unit and resistor, and shut off the
power with this fault signal.
• Do not directly connect a resistor to the DC terminals (between L+1, L+2, and L–).
• Tighten the terminal screws with the designated tightening torque.
• Correctly connect the output side (U, V, W).
3. Operation
DANGER
• Always install the front cover before turning the input power ON. Never remove the cover while the
power is ON. There are sections in the front PCB that are charged with high voltages.
• Never touch the switches with wet hands.
• Never touch the inverter’s terminals while the inverter power is ON even if the operation is stopped.
• Selection of the retry function could lead to unexpected restarting when alarm stops. The machine
may start suddenly if the power is turned ON when the automatic start function is selected. Do not
go near the machine.
(Design the machine so that physical safety can be ensured even if the machine restarts.)
• The machine may not stop when a stop command is issued if the deceleration stop function is
selected and the overvoltage/overcurrent limit function is activated. Prepare a separate emergency
stop switch.
• The unit will not suddenly restart even if the alarm is reset with the operation signal input, however,
in order to prevent unexpected operation, ensure that the operation signal is no longer being input,
and reset the alarm.
CAUTION
• The heat sink and dynamic braking resistor are heated to high temperatures, so never touch them.
• Do not block the inverter’s ventilation holes.
• The inverter operation can easily be set from low speeds to high speeds, so confirm that the
operation is within the tolerable range for the motor or machine before making settings.
• Prepare holding brakes when necessary. Holding is not possible with the inverter’s brake functions.
• Confirm the operation of the motor alone (un-coupled of machine), before operating the machine.
Failure to do so could lead to injuries or machine damage due to unforeseen movements.
Always prepare a safety environment so that the machine is not placed in a hazardous situation
when an error occurs in the inverter or before the inverter becomes ready for operation.
