Chapter 1 Safety Precautions; Before Supplying Power To The Inverter; Wiring - TECO A510s Series Instruction Manual

Chapter 1 Safety Precautions

Users are advised to carefully read the safety precautions required in this chapter before
installing, testing and repairing the system. Any personnel injury and equipment loss caused
by illegal operation are irrelevant to the company and bear any responsibility.

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 100Ω. 400V Class: Grounding impedance shall be less than 10Ω.)

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
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