Danfoss VLT AutomationDrive FC 301 Programming Manual page 114

VLT AutomationDrive FC 301/302
Programming Guide
Set current as percentage of rated motor current, parameter 1-24 Motor Current. Is used when enabled in parameter 1-70 Start Mode.
Parameter 2-07 Parking Time
Table 157: Parameter 2-07 Parking Time
2-07 Parking Time
Default value: 3 s
Conversion index: -1
Set the duration of the parking current set in parameter 2-06 Parking Current, once activated.
5.3.2 2-1* Brake Energy Funct.
Parameter group for selecting dynamic brake parameters. Only valid for drives with brake chopper.
Parameter 2-10 Brake Function
Table 158: Parameter 2-10 Brake Function
2-10 Brake Function
Default value: [1] Resistor brake
Conversion index: –
Op- Name Description
tion
[0] Off No brake resistor installed.
[1]* Resistor A brake resistor is incorporated in the system for dissipation of surplus brake energy as heat. Connecting a
brake brake resistor allows a higher DC-link voltage during braking (generating operation). The resistor brake
function is only active in drives with an integral dynamic brake.
[2] AC brake Improves braking without using a brake resistor. This parameter controls an overmagnetization of the mo-
tor when running with a generatoric load. This function can improve the OVC function. Increasing the elec-
trical losses in the motor allows the OVC function to increase the braking torque without exceeding the
overvoltage limit.
The AC brake is not as efficient as dynamic braking with resistor. AC brake is for VVC+ mode in both open
and closed loop.
Parameter 2-11 Brake Resistor (ohm)
Table 159: Parameter 2-11 Brake Resistor (ohm)
2-11 Brake Resistor (ohm)
Default value: Size related
Conversion index: 0
Set the brake resistor value in Ω. This value is used for monitoring the power to the brake resistor in parameter 2-13 Brake Power
Monitoring. This parameter is only active in drives with an integral dynamic brake. Use this parameter for values without decimals.
For a selection with 2 decimals, use parameter 30-81 Brake Resistor (ohm).
114 | Danfoss A/S © 2022.12
Parameter type: Range, 0.1 - 60 s
Data type: Uint16
Parameter type: Option
Data type: Uint8
Parameter type: Range, 0 - 65535 Ohm
Data type: Uint16
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
N O T I C E
Setup: All setups
Change during operation: True
Parameter Descriptions
AU275636650261en-000101 / 130R0334