Delta Electronics VFD-L Series Spezifikationen PDF herunterladen (Seite 18)

VFD-M Series

3-6

Terminal Explanations

Terminal Symbol Explanation of Terminal Function

R/L1, S/L2, T/L3 AC line input terminals (three phase)

U/T1, V/T2, W/T3 Motor connections

B1 – B2 Connections for Braking Resistor (optional)

Earth Ground

3.5

Wiring Notes: PLEASE READ PRIOR TO INSTALLATION.

CAUTION:

Do not connect the AC power to the U/T1, V/T2, W/T3 terminals, as it will

damage the AC drive.

WARNING:

Ensure all screws are tightened to the proper torque rating.

3. During installation, follow all local electrical, construction, and safety codes for the country

the drive is to be installed in.

4. Ensure that the appropriate protective devices (circuit breaker or fuses) are connected

between the power supply and AC drive.

5. Make sure that the leads are connected correctly and the AC drive is properly grounded.

6. Use ground leads that comply with AWG/MCM standards and keep them as short as

possible.

7. Multiple VFDB units can be installed in one location. All the units should be grounded

directly to a common ground terminal. The VFDB ground terminals may also be

connected in parallel, as shown in the figure below.

Ensure there are no ground loops.

Forward

running

8. When the AC drive output terminals U/T1, V/T2, and W/T3 are connected to the motor

terminals U, V, and W, respectively, the motor will rotate counterclockwise (as viewed

from the shaft ends of the motor) when a forward operation command is received. To

reverse the direction of motor rotation, switch over any of the two motor leads.

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Delta Electronics VFD-L Series Spezifikationen Seite 18