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3-8
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.
1.
!
CAUTION:
Do not connect the AC power to the U/T1, V/T2, W/T3 terminals, as it will
damage the AC drive.
2.
!
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
B550
units can be installed in one location. All the units should be grounded
directly to a common ground terminal. The
B550
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.
B550
Series
sensorless vector frequency drive
Содержание B550-2001
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