Danfoss VLT HVAC Basic Drive FC 101 Programming Guide

3.3 Main Menu - Brakes - Group 2
3.3.1 2-0* DC Brakes
Parameters for conguring the DC brake and DC hold
functions.
2-00 DC Hold/Motor Preheat Current
Range: Function:
50 %
*
[0 -
160 %]
NOTICE
MOTOR OVERHEATING
The maximum value depends on the rated
motor current.
To avoid motor damage caused by
overheating, do not run at 100% for too
long.
Set holding current as a percentage of the rated
motor current I
M,N
in parameter 1-24 Motor
Current. Parameter 2-00 DC Hold/Motor Preheat
Current holds the motor function (holding torque)
or pre-heats the motor. This parameter is active if
DC hold is selected in parameter 1-72 Start
Function [0] DC Hold/delay time or
parameter 1-80 Function at Stop [1] DC hold/Motor
Preheat.
2-01 DC Brake Current
Range: Function:
50
%*
[0 -
150 %
]
NOTICE
MOTOR OVERHEATING
The maximum value depends on the rated
motor current.
To avoid motor damage caused by
overheating, do not run at 100% for too
long.
Set current as % of rated motor current,
parameter 1-24 Motor Current. When speed is
below the limit set in parameter 2-04 DC Brake Cut
In Speed, or when the DC-brake inverse function is
active (in parameter group 5-1* Digital Inputs set to
[5] DC-brake inverse; or via the serial port), a DC-
brake current is applied on a stop command. See
parameter 2-02 DC Braking Time for duration.
2-02 DC Braking Time
Range: Function:
10 s* [0 - 60 s] Set the duration of the DC-brake current set in
parameter 2-01 DC Brake Current, once
activated.
2-04 DC Brake Cut In Speed
Range: Function:
0 Hz* [ 0 - 500
Hz]
This parameter is for setting the DC-brake
cut-in speed at which parameter 2-01 DC
Brake Current is to be active with a stop
command.
2-06 Parking Current
Range: Function:
100
%*
[0 -
150 %]
Set current as percentage of rated motor
current, parameter 1-24 Motor Current. Active
with parameter 1-73 Flying Start. The parking
current is active during the time period set in
parameter 2-07 Parking Time.
NOTICE
Parameter 2-06 Parking Current is only
active when 1 of the PM motor
construction options is selected in
parameter 1-10 Motor Construction.
2-07 Parking Time
Range: Function:
3 s* [0.1 - 60
s]
Set the duration of the parking current time set
in parameter 2-06 Parking Current. Active with
parameter 1-73 Flying Start.
NOTICE
Parameter 2-07 Parking Time is only active
when options of parameter 1-10 Motor
Construction are set to enable PM motors.
3.3.2 2-1* Brake Energy Function
Parameter group for selecting dynamic brake parameters.
2-10 Brake Function
Option: Function:
[0] * O The brake resistor is not active.
[2] AC brake AC brake is active.
2-16 AC Brake, Max current
Range: Function:
100 %* [0 - 160 %] Enter the maximum permissible current
when using the AC brake to avoid
overheating motor windings.
Parameters Programming Guide
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Danfoss VLT HVAC Basic Drive FC 101 Specifications

General

Brand	Danfoss
Model	VLT HVAC Basic Drive FC 101
Category	DC Drives
Language	English