Danfoss VLT AutomationDrive FC 301 Programming Manual page 56

Parameter Descriptions
2-00 DC Hold Current
Range:
50 % [ 0 -
*
160
%]
3 3
NOTICE
The maximum value depends on the rated motor
current.
Avoid 100 % current for too long. It may damage the
motor.
Low values of DC hold will produce larger than expected
currents with larger motor power sizes. This error will
increase as the motor power increases.
2-01 DC Brake Current
Range:
50 [ 0 -
% 1000
*
%]
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:
10 s [0 - 60 s] Set the duration of the DC braking current set
*
2-03 DC Brake Cut In Speed [RPM]
Range:
Size related
*
60000 RPM]
54
Function:
Enter a value for holding current as a percentage
of the rated motor current I set in 1-24 Motor
M,N
Current. 100% DC holding current corresponds to
I .
M,N
This parameter holds the motor function (holding
torque) or pre-heats the motor.
This parameter is active if DC hold is selected in
1-72 Start Function [0] or 1-80 Function at Stop [1].
Function:
Enter a value for current as a percentage of the
rated motor current I , see 1-24 Motor Current.
M,N
100% DC braking current corresponds to I
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.
Function:
in 2-01 DC Brake Current, once activated.
Function:
[ 0 - Set the DC brake cut-in speed for
activation of the DC braking current
set in 2-01 DC Brake Current, upon a
stop command.
®
VLT AutomationDrive FC 301/302 Programming Guide
2-04 DC Brake Cut In Speed [Hz]
Range:
Size related
NOTICE
2-04 DC Brake Cut In Speed [Hz] has no effect when
1-10 Motor Construction = [1] PM, non salient SPM.
2-05 Maximum Reference
Range:
Size
related
*
.
M,N
2-06 Parking Current
Range:
50 %
*
%]
2-07 Parking Time
Range:
3 s [0.1 - 60 s] Set the duration of the Parking Current set in
*
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:
[0] Off
[1] Resistor
brake
[2] AC brake Is selected to improve braking without using a
MG33MH02 - Rev. 2013-09-30
Function:
[ 0 - Set the DC brake cut-in speed for
*
1000.0 Hz] activation of the DC braking current
set in 2-01 DC Brake Current, upon a
stop command.
Function:
[ par. 3-02 - This is an access parameter to
999999.999 3-03 Maximum Reference for
ReferenceFeed- legacy products. The maximum
backUnit] reference is the highest value
obtainable by summing all
references. The maximum
reference unit matches the
choice of configuration in
1-00 Configuration Mode and the
unit in 3-01 Reference/Feedback
Unit.
Function:
[ 0 - 1000 Set current as percentage of rated motor
current, 1-24 Motor Current. Is used when
enabled in 1-70 PM Start Mode.
Function:
2-06 Parking Current, once activated.
Function:
No brake resistor is installed.
A brake resistor is incorporated in the system, for
dissipation of surplus brake energy as heat.
Connecting a brake resistor allows a higher DC-link
voltage during braking (generating operation). The
resistor brake function is only active in frequency
converters with an integral dynamic brake.
brake resistor. This parameter controls an
overmagnetisation of the motor when running
with a generatoric load. This function can improve