FC101 Programming Guide

ManualsBrandsSystemair ManualsElectrical accessories VentilationFC101-30kW/61A-IP20, 50/20m - frequency inverter 400V, no display, controller

0-61 Access to Main Menu w/o Password

Option: Function:

[3] Bus: Read only

[5] All: Read only

3.2 Main Menu - Load and Motor - Group 1

Parameters related to the motor nameplate load compen-

sations and application load type.

3.2.1 1-0* General Settings

1-00 Conguration Mode

Option: Function:

NOTICE

This parameter cannot be adjusted while

the motor is running.

[0]

Open

Loop

Motor speed is determined by applying a speed

reference or by setting the wanted speed when

in hand-on mode.

Open loop is also used if the frequency

converter is part of a closed-loop control system

based on an external PI controller providing a

speed reference signal as output.

[3] Process

Closed

Loop

NOTICE

When set for Closed Loop, the commands

Reversing and Start Reversing do not

reverse the direction of the motor.

A reference from the built-in PI controller

determines the motor speed. The built-in PI

controller varies the motor speed as of a closed-

loop control process (for example, constant

pressure or ow). Congure the PI controller in

parameter group 20-** Drive Closed Loop.

1-01 Motor Control Principle

Option: Function:

[0] U/f

NOTICE

When running U/f, control slip and load

compensations are not included.

Used for parallel-connected motors and/or special

motor applications. Set the U/f settings in

parameter 1-55 U/f Characteristic - U and

parameter 1-56 U/f Characteristic - F.

[1] * VVC+

NOTICE

When parameter 1-10 Motor Construction is

set to PM-enabled options, only VVC

option

is available.

1-01 Motor Control Principle

Option: Function:

Normal running mode, including slip and load

compensations.

1-03 Torque Characteristics

Option: Function:

[1]

Variable

Torque

For speed control of centrifugal pumps and fans.

Also to be used when controlling more than 1

motor from the same frequency converter (for

example, multiple condenser fans or cooling

tower fans). Provides a voltage that is optimized

for a squared torque load characteristic of the

motor.

[3] Auto

Energy

Optim.

For optimum energy ecient speed control of

centrifugal pumps and fans, it provides a

voltage that is optimized for a squared torque

load characteristic of the motor. In addition, the

AEO feature adapts the voltage exactly to the

current load situation, thereby reducing energy

consumption and audible noise from the motor.

1-06 Clockwise Direction

Option: Function:

NOTICE

This parameter cannot be adjusted while

the motor is running.

This parameter denes the term clockwise

corresponding to the LCP direction arrow. Used for

easy change of direction of shaft rotation without

swapping motor wires.

[0] * Normal The motor shaft turns in clockwise direction when

frequency converter is connected U⇒U; V⇒V; and

W⇒W to motor.

[1] Inverse The motor shaft turns in counterclockwise

direction when frequency converter is connected

U⇒U; V⇒V; and W⇒W to motor.

1-08 Motor Control Bandwidth

Option: Function:

[0] High Suitable for highly dynamic response.

[1] * Medium Suitable for smooth steady-state operation.

[2] Low Suitable for smooth steady-state operation with

lowest dynamic response.

[3] Adaptive 1 Suitable for smooth steady-state operation with

extra active damping.

[4] Adaptive 2 This is an alternative to [3] Adaptive 1, which

focuses on low-inductance PM motors.

Parameters

VLT

HVAC Basic Drive FC 101