Danfoss VLT HVAC Series User Manual

NOTE!
This parameter cannot be adjusted while the motor is running.
NOTE!
Digital inputs should be set to “No operation” - see par. 5-1*.
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 par.
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/Preheat is selected in par.1-80
Function at Stop .
NOTE!
The maximum value depends on the rated motor current.
NOTE!
Avoid 100% current for too long, as it may damage the motor. 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 par.1-24 Motor Cur-
rent
. 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 par.
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 par.2-02
DC Braking
Time
.
NOTE!
The maximum value depends on the rated motor current.
NOTE!
Avoid 100% current for too long, as it may damage the motor. It may damage the motor.
2-02 DC Braking Time
Range: Function:
10.0 s* [0.0 - 60.0 s] Set the duration of the DC braking current set in par.2-01 DC Brake Current , once activated.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-30 MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT HVAC Series Specifications

General

Brand	Danfoss
Model	VLT HVAC Series
Category	DC Drives
Language	English