3.3 Main Menu - Brakes - Group 2
2-00 DC Hold/Motor Preheat Current
Range:
Function:
50 %
*
[0 -
160 %]
Set holding current as a percentage of the rated
motor current IM,N
.
holds the motor
function (holding torque) or pre-heats the motor.
This parameter is active if DC hold is selected in
[0] or
[1].
NOTICE
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 -
150 %]
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.
NOTICE
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
, once activated.
2-04 DC Brake Cut In Speed
Range:
Function:
0 Hz
*
[ 0 -
400 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.
NOTICE
2-01, 2-02 and 2-04 will not have effect when
1-10 Motor Construction
=
[1] PM, non salient SPM
.
2-06 Parking Current
Range:
Function:
100 %
*
[0 -
150 %]
Set current as percentage of rated motor
current,
1-24 Motor Current
. Active in
connection with
. The parking
current is active during the time period set in
NOTICE
2-06 Parking Current
is only active when
PM motor construction is selected in
2-07 Parking Time
Range:
Function:
3 s
*
[0.1 -
60 s]
Set the duration of the parking current time set
in
2-06 Parking Current
. Active in connection with
.
NOTICE
is only active when PM
motor construction is selected in
3.3.1 2-1* Brake Energy Function
Parameter group for selecting dynamic braking parameters.
2-10 Brake Function
Option:
Function:
[0]
*
Off
No brake resistor installed.
[2]
AC brake
AC brake is active.
2-16 AC Brake, Max current
Range:
Function:
100 %
*
[ 0 - 150 %] Enter the maximum permissible current
when using AC brake to avoid
overheating of motor windings.
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.
NOTICE
The ramp time is automatically adjusted to
avoid tripping of the frequency converter.
Parameters
VLT
®
HVAC Basic Drive FC 101 Programming Guide
MG18B302 - Rev. 2013-09-02
31
3
3
Summary of Contents for VLT HVAC Basic Drive FC 101
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