Unitronics UMI-B1 UL Series User Manual

UMI-B1 UL Series Inverter Installation guide
15
3.2.2 Terminals figure of main circuit
Figure 3-4 1PH terminals of main circuit
Terminal
Terminal name
Function
L
Power input of the main
circuit
1-phase AC input terminals which are generally
connected with the power supply.
N
U
The inverter output
3-phase AC output terminals which are generally
connected with the motor.
V
W
PB, (+)
Braking resistor terminal
PB and (+) are connected to the external
resistor.
PE
Grounding terminal
Each machine should be grounded.
Figure 3-5 3PH terminals of main circuit
Terminal
Terminal name
Function
R, S, T
Power input of the main
circuit
3-phase AC input terminals which are generally
connected with the power supply.
U, V, W
The inverter output
3-phase AC output terminals which are generally
connected with the motor.
PB, (+)
Braking resistor terminal
PB and (+) are connected to the external
resistor.
PE
Grounding terminal
Each machine should be grounded.
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.

Unitronics UMI-B1 UL Series Specifications

General

Brand	Unitronics
Model	UMI-B1 UL Series
Category	Inverter
Language	English