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3 Product Overview
3.1 What this chapter contains
The chapter briefly describes the operation principle, product characteristics, layout, name plate and type
designation information.
3.2 Basic principles
CV50 inverters are wall and flange mountable devices for controlling asynchronous AC inductance motors.
The diagram below shows the main circuit diagram of the inverter. The rectifier converts three-phase AC
voltage to DC voltage. The capacitor bank of the intermediate circuit stabilizes the DC voltage. The converter
transforms the DC voltage back to AC voltage for the AC motor. The brake pipe connects the external braking
resistor to the intermediate DC circuit to consume the feedback energy when the voltage in the circuit exceeds
its maximum limit.
Note:
1. The inverter above 37kW (including 37kW) supports external DC reactor. Before connecting, it is necessary
to remove the copper row between P1 and（+）.
2. The inverters (≤30kW) have standard embedded braking units and the braking resistor is optional.
3. The inverters (≥37kW) can be installed with optional braking units and the braking unit and resistor are
optional.
3.3 Product specification
Function
Input
Product Overview
Diagram 3-1 The main circuit diagram (≤30kW)
Diagram 3-2 The main circuit diagram (≥37kW)
Input voltage (V)
Input current (A)
Input frequency (Hz)
Specification
AC 3PH 380V(-15%)~440V(+10%)
Refer to the rated value
50Hz or 60Hz
Allowed range: 47~63Hz
11 - 144
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