OPERATION INSTRUCTIONS DANFOSS ENG

ManualsBrandsSystemair ManualsElectrical accessories VentilationFC102-37,0kW/73A-IP55, 150/50m - frequency converter, 380-480V, 37kW, 73A, IP55

Rotor detection

This function is the recommended choice for applications

where the motor starts from standstill, e.g., pumps or

conveyors. On some motors, an acoustic sound is heard

when the impulse is sent out. This does not harm the

motor.

Parking

This function is the recommended choice for applications

where the motor is rotating at slow speed, e.g.,

windmilling in fan applications. 2-06 Parking Current and

2-07 Parking Time can be adjusted. Increase the factory

setting of these parameters for applications with high

inertia.

Start the motor at nominal speed. If the application does

not run well, check the VVC

PM settings. Recommen-

dations for different applications can be seen in Table 5.6.

Application Settings

Low inertia applications

Load

Motor

1-17 Voltage Filter Time Const. to be

increased by factor 5 to 10

1-14 Damping Gain should be

reduced

1-66 Min. Current at Low Speed

should be reduced (<100%)

Low inertia applications

50>I

Load

Motor

Keep calculated values

High inertia applications

Load

Motor

> 50

1-14 Damping Gain, 1-15 Low Speed

Filter Time Const. and 1-16 High

Speed Filter Time Const. should be

increased

High load at low speed

<30% (rated speed)

1-17 Voltage Filter Time Const. should

be increased

1-66 Min. Current at Low Speed

should be increased (>100% for a

prolonged time can overheat the

motor)

Table 5.6 Recommendations for Different Applications

If the motor starts oscillating at a certain speed, increase

1-14 Damping Gain. Increase the value in small steps.

Depending on the motor, a good value for this parameter

can be 10% or 100% higher than the default value.

Starting torque can be adjusted in 1-66 Min. Current at Low

Speed. 100% provides nominal torque as starting torque.

5.4.5

Automatic Energy Optimization (AEO)

NOTICE!

AEO is not relevant for permanent magnet motors.

Automatic Energy Optimization (AEO) is a procedure that

minimizes voltage to the motor, reducing energy

consumption, heat, and noise.

To activate AEO, set parameter 1-03 Torque Characteristics

to [2] Auto Energy Optim. CT or [3] Auto Energy Optim. VT.

5.4.6

Automatic Motor Adaptation (AMA)

NOTICE!

AMA is not relevant for PM motors.

Automatic motor adaptation (AMA) is a procedure that

optimizes compatibility between the adjustable frequency

drive and the motor.

•

The adjustable frequency drive builds a

mathematical model of the motor for regulating

output motor current. The procedure also tests

the input phase balance of electrical power. It

compares the motor characteristics with the data

entered in parameters 1-20 to 1-25.

•

The motor shaft does not turn and no harm is

done to the motor while running the AMA.

•

Some motors may be unable to run the complete

version of the test. In that case, select [2] Enable

reduced AMA.

•

If an output filter is connected to the motor,

select Enable reduced AMA.

•

If warnings or alarms occur, see chapter 7.4 List of

Warnings and Alarms.

•

Run this procedure on a cold motor for best

results.

To run AMA

1. Press [Main Menu] to access parameters.

Scroll to parameter group 1-** Load and Motor

and press [OK].

Scroll to parameter group 1-2* Motor Data and

press [OK].

Scroll to 1-29 Automatic Motor Adaptation (AMA)

and press [OK].

Select [1] Enable complete AMA and press [OK].

Commissioning

Instruction Manual