FC 300 Design GuideHow to Program" Parameters: Brakes" 2-** BrakesParameter group for setting brake features inthe adjustable frequency drive." 2-0* DC BrakesParameter group for configuring the DC brakeand DC hold functions.2-00 DC Hold CurrentRange:0 - 100% *50%Function:Enter a value for holding current as a percentageof the rated motor current IM,N set in par.1-24 Motor Current. 100% DC holdingcurrent corresponds to IM,N .This parameter holds the motor function (holdingtorque) or pre-heats the motor.This parameter is active if DC hold is selectedin par. 1-72 Start Function [0] or par. 1-80Function at Stop [1].NOTEThe maximum value depends on therated motor current.NOTEAvoid 100% current for too long. It maydamage the motor.2-01 DC Brake CurrentRange:0 - 100% *50%Function:Enter a value for current as a percentage of the ratedmotor current IM,N , see par. 1-24 Motor Current.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 inpar. 2-03 DC Brake Cut In Speed; when theDC Brake Inverse function is active; or viathe serial communication port. The brakingcurrent is active during the time period setin par. 2-02 DC Braking Time.NOTEThe maximum value depends on therated motor current.NOTEAvoid 100 % current for too long. It maydamage the motor.2-02 DC Braking TimeRange:0.0 - 60.0 s. *10.0s.Function:Set the duration of the DC braking current setin par. 2-01, once activated.2-03 DC Brake Cut-In SpeedRange:0 - par. 4-13 RPM *0RPMFunction:Set the DC brake cut-in speed for activationof the DC braking current set in par. 2-01,upon a stop command." 2-1* Brake Energy Funct.Parameter group for selecting dynamicbraking parameters.2-10 Brake FunctionOption:*Off [0]Resistor brake [1]Function:Select Off [0] if no brake resistor is installed.Select Resistor brake [1] if a brake resistor isincorporated in the system, for dissipation ofsurplus brake energy as heat. Connecting a brakeresistor allows a higher DC link voltage duringbraking (generating operation). The Resistor brakefunction is only active in frequency converterswith an integral dynamic brake.2-11 Brake Resistor (ohm)Option:Ohm Dependson unit size.Function:Set the brake resistor value in Ohms. This valueis used for monitoring the power to the brakeresistor in par. 2-13 Brake Power Monitoring. This* default setting ( ) display text [ ] value for use in communication via serial communication port173MG.33.B6.22 - VLT is a registered Danfoss trademark
