Af-60 lp™ micro drive programming guide, 1-8* stop adjustments, 1-9* motor temperature – GE Industrial Solutions AF-60 LP Micro Drive User Manual

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[1]

DC Brake/Delay Time

Motor is energized with DC braking current (par. 2-01) during start delay time.

[2]

*

Coast/Delay Time

Drive is coasted during start delay time ( Driveoff).

1-73 Start Mode

Option:

Function:

The Start Mode parameter is used to catch a spinning motor after eg. mains drop-out.

This function is not suitable for hoisting applications.

[0]

*

Disabled

Catch a spinning load disabled.

[1]

Enabled

Frequency converter enabled to catch spinning motor.

NB!

When catch a spinning load is enabled par. 1-71, Start Delay, and par. 1-72, Start Function, have no function.

4.2.6. 1-8* Stop Adjustments

To meet the need for various stop functions in different application these parameters offer some special stop features for the motor.

1-80 Function at Stop

Option:

Function:

The selected function at stop is active in following situations:

Stop command is given and output speed is ramped down to Min. Speed for Activating Functions at Stop.

Start command is removed (standby), and output speed is ramped down to Min. Speed for Activating Functions

at Stop.

DC-brake command is given, and DC-brake time has passed

While running and calculated output speed is below Min. Speed for Activating Functions at Stop.

[0]

*

Coast

The drive is coasted.

[1]

DC hold

The motor is energized with a DC current. See par. 2-00 DC Hold Current for more information.

1-82 Min. Speed For Function at Stop [Hz]

Range:

Function:

0.0 Hz

*

[0.0 - 20.0 Hz]

Set the speed at which to activate par. 1-80 Function at Stop.

4.2.7. 1-9* Motor Temperature

With an estimated motor temperature monitor the frequency converter is able to estimate motor temperature without having a thermistor mounted. It is thus

possible to receive a warning or an alarm, if motor temperature exceeds upper operational limit.

1-90 Motor Thermal Protection

Option:

Function:

Using Electronic Overload the motor temperature is calculated based on frequency, speed and time. GE recommends

using The Electronic Overload function, if a thermistor is not present.

NB!

Electronic Overload calculation is based on motor data from group 1-2*.

[0]

*

No Protection

Disables temperature monitoring.

[1]

Thermistor Warning

A thermistor connected to either digital or analog input gives a warning if upper limit of motor temperature range is

exceeded, (see par. 1-93, Thermistor Resource).

[2]

Thermistor Trip

A thermistor connected to either digital or analog input gives an alarm and makes the frequency converter trip if upper

limit of motor temperature range is exceeded, (see par. 1-93, Thermistor Resource.

AF-60 LP™ Micro Drive Programming Guide

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