Unitronics UMI-B1 UL Series Operation Manual page 17

UMI-B1 UL Series Inverter
3.2.2 Terminals figure of main circuit
Terminal Terminal name
L
Power input of the main
N
U
V The inverter output
W
PB, (+) Braking resistor terminal
PE Grounding terminal
Terminal Terminal name
Power input of the main
R, S, T
U, V, W The inverter output
PB, (+) Braking resistor terminal
PE Grounding terminal
Note:
•
Do not use asymmetrically motor cables. If there is a symmetrically grounding
conductor in the motor cable in addition to the conductive shield, connect the
grounding conductor to the grounding terminal at the inverter and motor ends.
•
Route the motor cable, input power cable and control cables separately.
•
When selecting C3 input filters, connect the filters in parallel at the input side of the
inverter.
Figure 3-4 1PH terminals of main circuit
1-phase AC input terminals which are generally
circuit connected with the power supply.
3-phase AC output terminals which are generally
connected with the motor.
PB and (+) are connected to the external
resistor.
Each machine should be grounded.
Figure 3-5 3PH terminals of main circuit
3-phase AC input terminals which are generally
circuit connected with the power supply.
3-phase AC output terminals which are generally
connected with the motor.
PB and (+) are connected to the external
resistor.
Each machine should be grounded.
15
Installation guide
Function
Function