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INSTALLATION MANUAL
FOR ELECTRICAL PARTS
3.2 Process of Low Speed Test Drive
3.2.1 Line Connection
1) Power Line Connection
• Connect from U, V, and W connectors, which are inverter output parts, to the motor in the order, and
use the ring connector in the motor connector part for sufficient tightening.
• The lines generating noise such as power line and brake, motor thermal SW, etc. should be
separated from the signal lines and have pipes and wiring work.)
Be careful not to connect R, S, T power line to inverter U, V, W connectors, or
line going to the motor to power input R, S, T connectors!
2) Encoder connection
• Connect correctly the cable coming from encoder to inverter connector.
• If encoder connection is reversed, it may damage the encoder, so be careful.
• Connect shield line directly to inverter PGM connector or shield connector.
3) Motor Thermal Wiring (TH1, THC) :
• Distinguishing Induction Motor from Synchronous Motor.
• Wire the thermal or the thermistor on the motor terminal block correctly according to the electrical
diagram.
4) Brake connection
• Refer to the electric diagram to connect brake coil and contact point, etc.
• Connect brake connections.
• Be careful not to reverse B3, B4 and BSP, BSC, BOP lines
• (B3(TBMA-5), B4(TBMA-6) & BSP, BSC, BOP (TBMA-2, TBMA-3, TBMA-4))
• Check if there is a problem in the brake open checking micro switch and brake voltage adjustment
volume resistance (R1 in VCON Board) setting.
5) Governor (GOV) connection
• Make sure the governor is clean and connect the case grounding line so that there is no malfunction
of the contact point by dust, etc. after completing the governor connection.
• Rotate governor axis to check if there is any interference in the rotation.
6) Grounding work
If the work is performed near the equipment with conductivity, electric shock due to negligence may
cause injury or death, so thorough grounding work must be done, and precise grounding work must be
done to prevent malfunction of the machine.
Specification for three - phase grounding wire:
When Power less than 15KW, Grouding wire using 10SQ.
When Power greater than 15KW, Grouding wire using 16SQ.
7) Connect from building power connector box to control panel main power(R, S, T, and E).
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