communication port. The braking current is active during the
time period set in par. 2-02
DC Braking Time
.
NB!
The maximum value depends on the rated motor current.
NB!
Avoid 100 % current for too long. It may damage the motor.
2-02 DC Braking Time
Range: Function:
10.0s.
*
[0.0 - 60.0 s.] Set the duration of the DC braking current set in par. 2-01, once
activated.
2-03 DC Brake Cut In Speed
Range: Function:
0 RPM
*
[0 - par. 4-13 RPM] Set the DC brake cut-in speed for activation of the DC braking
current set in par. 2-01, upon a stop command.
2.4.2. 2-1* Brake Energy Funct.
Parameter group for selecting dynamic braking parameters.
2-10 Brake Function
Option: Function:
[0]
*
Off No brake resistor installed.
[1] Resistor brake Brake resistor incorporated in the system, for dissipation of sur-
plus 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 convert-
ers with an integral dynamic brake.
2-11 Brake Resistor (ohm)
Range: Function:
Size re-
lated
[Ohm] Set the brake resistor value in Ohms. This value is used for
monitoring the power to the brake resistor in par. 2-13
Brake
Power Monitoring
. This parameter is only active in frequency
converters with an integral dynamic brake.
2-12 Brake Power Limit(kW)
Range: Function:
kW
*
[0.001 - Variable Limit
kW]
Set the monitoring limit of the brake power transmitted to the
resistor.
The monitoring limit is a product of the maximum duty cycle
(120 sec.) and the maximum power of the brake resistor at that
duty cycle. See the formula below.
2. Parameter Description VLT
®
AQUA Drive Programming Guide
58
MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2
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