![Danfoss VLT HVAC Скачать руководство пользователя страница 30](http://html1.mh-extra.com/html/danfoss/vlt-hvac/vlt-hvac_programming-manual_3840707030.webp)
3.3 Main Menu - Brakes - Group 2
2-00 DC Hold/Motor Preheat Current
Range:
Function:
50.0 %
*
[0.0 -
160.0 %]
Set holding current as a percentage of the
rated motor current IM,N
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
[0] or
[1].
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 %
*
[0.0 - 150.0
%]
Set current as % of rated motor current,
. DC brake current is
applied on stop command, when speed is
below the limit set in
; when the DC Brake Inverse function
is active; or via the serial port. See
for duration.
50.0 %
*
[0.0 - 150.0
%]
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:
10.0 s
*
[0.0 - 60.0 s] Set the duration of the DC braking current
set in
, once activated.
2-04 DC Brake Cut In Speed
Range:
Function:
0.0 Hz
*
[0.0 - 400.0
Hz]
This parameter is for setting the DC brake
cut in speed at which the DC braking
current
is to be
active, in connection with a stop
command.
3.3.1 2-1* Overvoltage Control
Par. group for selecting dynamic braking parameters.
2-10 Brake Function
Option:
Function:
[0]
Off
No brake resistor installed.
2-17 Over-voltage Control
Option:
Function:
Select whether to enable OVC, which reduces the
risk of drive trip due to over voltage on the DC link
caused by generative power from load.
[0]
Disabled No OVC required.
[2]
*
Enabled Activates OVC.
NOTE
The ramp time is automatically adjusted to avoid tripping of
the frequency converter.
Parameters
VLT HVAC Basic Drive Programming Guide
MG.18.B1.02 - VLT
®
is a registered Danfoss trademark
29
3
3
Содержание VLT HVAC
Страница 1: ...MAKING MODERN LIVING POSSIBLE Programming Guide VLT HVAC Basic Drive...
Страница 98: ...www danfoss com drives MG18B102 130R0221 MG18B102 Rev 2010 07 21...
Страница 99: ......