Parameters: 2-** Brakes - Danfoss VLT Refrigeration Drive FC 103 Programming Manual

Parameter Description

3.4 Parameters: 2-** Brakes

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:
NOTICE
50 [ 0 -
% 160 %
*
Parameter 2-00 DC Hold/Preheat Current has
]
no effect when parameter 1-10 Motor
Construction=[1] PM, non-salient SPM.
NOTICE
The maximum value depends on the rated
motor current.
Avoid 100% current for too long. It may
damage the motor.
Enter a value for holding current as a percentage
of the rated motor current I
parameter 1-24 Motor Current. 100% DC hold
current corresponds to I
This parameter holds the motor (holding torque)
or preheats the motor.
This parameter is active if [1] DC hold/Motor
Preheat is selected in parameter 1-80 Function at
Stop.
2-01 DC Brake Current
Range: Function:
NOTICE
50 [ 0 -
% 1000 %
*
The maximum value depends on the rated
]
motor current. Avoid 100% current for too
long. It may damage the motor.
Enter a value for current as a percentage of the
rated motor current I
Current. 100% DC brake 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:
•
Parameter 2-03 DC Brake Cut In Speed
[RPM].
•
Parameter 2-04 DC Brake Cut In Speed
[Hz], 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 parameter 2-02 DC Braking Time.
MG16H202
Programming Guide
set in
M,N
.
M,N
, see parameter 1-24 Motor
M,N
Danfoss A/S © 05/2016 All rights reserved.
2-02 DC Braking Time
Range: Function:
10 s [0 - 60 s] Set the duration of the DC brake current set in
*
parameter 2-01 DC Brake Current, once
activated.
2-03 DC Brake Cut In Speed [RPM]
Range: Function:
Size [ 0 - 0 Set the DC brake cut-in speed for
related RPM] activation of the DC braking current set
*
in parameter 2-01 DC Brake Current, upon
a stop command.
When parameter 1-10 Motor Construction
is set to [1] PM non-salient SPM, this value
is limited to 0 RPM (OFF).
2-04 DC Brake Cut In Speed [Hz]
Range: Function:
NOTICE
Size [ 0 -
related 0.0 Hz]
*
Parameter 2-04 DC Brake Cut In
Speed [Hz] is not effective when
parameter 1-10 Motor Construction =
[1] PM, non-salient SPM.
Set the DC brake cut-in speed for
activation of the DC brake current set in
parameter 2-01 DC Brake Current after a
stop command.
2-06 Parking Current
Range: Function:
NOTICE
50 [ 0 -
% 1000 %]
*
Parameter 2-06 Parking Current and
parameter 2-07 Parking Time: Only active
if [1] PM, non salient SPM is selected in
parameter 1-10 Motor Construction.
Set current as percentage of rated motor
current, parameter 1-24 Motor Current. Active in
connection with parameter 1-73 Flying Start. The
parking current is active during the time period
set in parameter 2-07 Parking Time.
2-07 Parking Time
Range: Function:
3 s [0.1 - 60 Set the duration of the parking current time set
*
s] in parameter 2-06 Parking Current. Active in
connection with parameter 1-73 Flying Start.
NOTICE
Parameter 2-07 Parking Time is only active
when [1] PM, non-salient SPM is selected
in parameter 1-10 Motor Construction.
3 3
53