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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
. 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/Motor
Preheat
is selected in
NOTE
will not have effect when
= [1] PM, non salient SPM.
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 -
1000 %]
Enter a value for current as a percentage of the
rated motor current I
M,N
, see
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
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
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 s
*
[0 - 60 s] Set the duration of the DC braking current set
in
, once activated.
2-03 DC Brake Cut In Speed [RPM]
Range:
Function:
Size related
*
[ 0 - 0
RPM]
Set the DC brake cut-in speed for
activation of the DC braking current
2-03 DC Brake Cut In Speed [RPM]
Range:
Function:
set in
, upon a
stop command.
When
is set to
[1] PM non salient SPM this value is
limited to 0 rpm (OFF)
NOTE
2-03 DC Brake Cut In Speed [RPM]
will not have effect when
= [1] PM, non salient SPM.
2-04 DC Brake Cut In Speed [Hz]
Range:
Function:
Size related
*
[ 0 - 0.0 Hz]
2-06 Parking Current
Range:
Function:
50 %
*
[ 0 - 1000
%]
Set current as percentage of rated motor
current,
. Active in
connection with
. The ing
current is active during the time period set
in
.
NOTE
and
: Only active if
PM motor construction is selected in
.
2-07 Parking Time
Range:
Function:
3 s
*
[0.1 - 60 s] Set the duration of the ing current time set in
. Active in connection with
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: Function:
Available selections depend on
[0] Asynchron:
[0] off
[1] Resistor brake
[2] AS brake
[1] PM non salient:
[0] off
[1] Resistor brake
[0]
*
Off No brake resistor installed.
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
48
MG16H102 - VLT
®
is a registered Danfoss trademark
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