TECO A510s, Quick Setting Manual, Page: 2 / 111

1
Chapter 1 Safety Precautions
1.1 Before Supplying Power to the Inverter
Warning
The main circuit must be correctly wired. For single phase supply use input terminals
(R/L1, T/L3) and for three phase supply use input terminals (R/L1, S/L2, T/L3).
Terminals U/T1, V/T2, W/T3 must only be used to connect the motor. Connecting the
input supply to any of the U/T1, V/T2 or W/T3 terminals will cause damage to the
inverter.
Caution

To avoid the front cover from disengaging or other physical damage, do not carry
the inverter by its cover. Support the unit by its heat sink when transporting.
Improper handling can damage the inverter or injure personnel, and should be
avoided.

To avoid the risk of fire, do not install the inverter on or near flammable objects.
Install on nonflammable objects such as metal surfaces.

If several inverters are placed inside the same control panel, provide adequate
ventilation to maintain the temperature below 40°C/104°F (50°C/122°F without a
dust cover) to avoid overheating or fire.

When removing or installing the digital operator, turn off the power first, and then
follow the instructions in our instruction manual to avoid operator error or loss of
display caused by faulty connections.
Warning

This product is sold subject to IEC 61800-3. In a domestic environment this product
may cause radio interference in which case the user may need to apply corrective
measures.

Motor over temperature protection is provided.
1.2 Wiring
Warning

Always turn OFF the power supply before attempting inverter installation and wiring
of the user terminals.

Wiring must be performed by a qualified personnel / certified electrician.

Make sure the inverter is properly grounded. (200V Class: Grounding impedance
shall be less than 100 Ω . 400V Class: Grounding impedance shall be less than 10 Ω .)

Make sure the inverter is properly grounded. It is required to disconnect the ground
wire in the control board to avoid the sudden surge causing damage on electronic
parts if it is improperly grounded.

RCD is required to be in compliance with the protection norm of B-type leakage
current.

Please check and test emergency stop circuits after wiring. (Installer is responsible
for the correct wiring.)

Never touch any of the input or output power lines directly or allow any input of output
power lines to come in contact with the inverter case.

Do not perform a dielectric voltage withstand test (megger) on the inverter this will
result in inverter damage to the semiconductor components.
Caution

The line voltage applied must comply with the inverter’s specified input voltage.
(See product nameplate section 2.1)

Connect braking resistor and braking unit to the designated terminals. (See section
3.10)