MD280/MD280N User Manual Mechanical and Electrical Installation
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3.2.4 Main Circuit Terminals and Wiring
Danger
z Make sure that the wiring operation shall be carried out only
when the power supply switch is in OFF position, or there may be risk
of electric shock.
z Only the professional technicians who have received training can
perform wiring, or it may cause injuries to the equipment and human
body.
z It shall be grounded reliably, or there may be risk of electric
shock or fire acciden.
⊼ᛣ
Caution
⊼ᛣ
Caution
z Make sure that the input power supply and the rated value
of the inverter shall be consistent, or it may damage the inverter.
z Make sure that the motor is compatible with the inverter, or the
motor may be damaged or inverter protection may be caused.
z Do not connect the power supply to the U, V, W terminals, or it
may damage the inverter.
z Do not connect the brake resistor to the DC bus terminals (+) and
(-) directly, or there may be fire accident.
1˅ Description of main circuit terminals of single-phase inverter:
Terminals Name Description
L1ǃL2
Single-phase power input
terminal
Connect to the AC single-phase 220V power supply
(+)ǃ(-)
Negative and positive
terminals of DC bus
Shared DC bus input point
(+)ǃPB
Connecting terminal of
braking resistor
Connect to the braking resistor
UǃVǃW
Output terminal of inverter
Connect to the three-phase motor
Grounding terminal
Grounding terminal
2˅ Description of main circuit terminals of three-phase inverter:
Terminals Name Description
efesotomasyon.com
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