DETAILED DESCRIPTION

VLB3…

VLB3 is a compact drive with three-phase supply input for 0,75 KW up to 37 KW motors.
It is ideal for general applications and, in particular, to lift and manage pumps and fans, thanks to several specific built-in functions (S Curve, PID, torque squared control) and protection functions (Overcurrent, Output short circuit and earth/ground leakage, Overvoltage, Undervoltage, Phase loss, Motor over temperature, Overspeed and speed reverse).
The VLB3 does not require any space for side ventilation, allowing to install several side-by-side drives. The user interface, which comprises built-in keyboard and display, allows accessing the setting parameters easily, thanks to the use of extended texts describing the functions and codes. Using the USB or Wi-Fi connection accessories, the programming, monitoring and diagnostics can be performed using a PC. The RS485 communication port with built-in RTU modbus and EMC filter complete the hardware supply. The logic unit can be replaced with one of the VLB... codes, obtaining a different communication port.

General specification

• Input voltage range: 3-ph 400 - 480 V AC
• Power range: 0,75 - 37 KW
• Current range: 1,5 - 76,1 A
• Control mode: V/f linear or squared curves, Open or closed ring vector control, Energy-saving ECO control, S curves
• Output frequency: 0-599 Hz

Protections

• Overcurrent
• Output short circuit and earth/ground leakage
• Overvoltage
• Undervoltage
• Phase loss
• Motor heat overload (I2t)
• Motor PTC heat protection
• Drive, motor and braking resistor overload
• Overspeed
• Speed reverse

Programmable inputs/outputs

• PNP or NPN connections
• 5 digital inputs
• 1 digital output (changeover relay output)
• 2 voltage analog inputs -10…10VDC (two-pole) or current analog inputs 0/4…20mA
• 1 voltage analog output 0…10VDC (two-pole) or current analog output 0/4…20mA

Speed reference signals

• External potentiometer: 0…10kΩ
• Voltage signals: -10…10VDC (two-pole)
• Current signals: 0/4…20mA
• Buttons on front keyboard
• Remote control panel
• 15 preset speeds via digital inputs
• Motopotentiometer
• Setting via modbus protocol (RS485)