Danfoss VLT FC 103 Programming Guide

3.4 Main Menu - Brakes - Group 2
3.4.1 2-0* DC-Brakes
Parameter group for configuring the DC brake and DC
hold
functions.
2-00 DC Hold/Preheat Current
Range: Function:
50 %* [ 0 -
160
%]
Enter a value for holding current as a
percentage of the rated motor current I
M,N
set
in 1-24 Motor Current. 100% DC holding current
corresponds to I
M,N
.
This parameter holds the motor (holding
torque) or pre-heats the motor.
This parameter is active if [1] DC hold/Motor
Preheat is selected in 1-80 Function at Stop.
NOTE
2-00
DC Hold/Preheat Current will not have effect when
1-10 Motor Construction = [1] PM, non salient SPM.
NOTE
The
maximum value depends on the rated motor current.
Avoid 100 % current for too long. It may damage the
motor.
2-01 DC Brake Current
Range: Function:
50
%*
[ 0 -
1000
%]
Enter a value for current as a percentage of the
rated motor current I
M,N
, see 1-24 Motor Current.
100% DC braking current corresponds to I
M,N
.
DC brake current is applied on a stop
command, when the speed is lower than the
limit set in 2-03 DC Brake Cut In Speed [RPM];
when the DC Brake Inverse function is active; or
via the serial communication port. The braking
current is active during the time period set in
2-02 DC Braking Time.
NOTE
The
maximum value depends on the rated motor current.
Avoid 100 % current for too long. It may damage the
motor.
2-02 DC Braking Time
Range: Function:
10 s* [0 - 60 s] Set the duration of the DC braking current set
in 2-01 DC Brake Current, once activated.
2-03 DC Brake Cut In Speed [RPM]
Range: Function:
Size related* [ 0 - 0
RPM]
Set
the DC brake cut-in speed for
activation of the DC braking current
2-03 DC Brake Cut In Speed [RPM]
Range: Function:
set in 2-01
DC Brake Current, upon a
stop
command.
When 1-10 Motor Construction is set to
[1] PM non salient SPM this value is
limited to 0 rpm (OFF)
NOTE
2-03
DC Brake Cut In Speed [RPM] will not have effect when
1-10 Motor Construction = [1] PM, non salient SPM.
2-04 DC Brake Cut In Speed [Hz]
Range: Function:
Size related* [ 0 - 0.0 Hz]
2-06 Parking Current
Range: Function:
50 %* [ 0
- 1000
%]
Set
current as percentage of rated motor
current, 1-24 Motor Current. Active in
connection with 1-73 Flying Start. The ing
current is active during the time period set
in 2-07 Parking Time.
NOTE
2-06
Parking Current and 2-07 Parking Time: Only active if
PM motor construction is selected in 1-10 Motor
Construction.
2-07 Parking Time
Range: Function:
3 s* [0.1 - 60 s]
Set the duration of the ing current time set in
2-06
Parking Current. Active in connection with
1-73 Flying Start.
3.4.2 2-1* Brake Energy Funct.
Parameter group for selecting dynamic braking parameters.
Only
valid for frequency converters with brake chopper.
2-10 Brake Function
Option: Function:
Available selections depend on 1-10
Motor Construction:
[0] Asynchron:
[0] off
[1] Resistor brake
[2] AS brake
[1] PM non salient:
[0] off
[1] Resistor brake
[0] * Off No brake resistor installed.
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
48 MG16H102 - VLT
®
is a registered Danfoss trademark
33

Danfoss VLT FC 103 Specifications

General

Brand	Danfoss
Model	VLT FC 103
Category	DC Drives
Language	English