Actual signals and parameters9026 FLUX CONTROL Flux control variables. Improves the stability of a system bydecreasing the amount of electrical motor flux when low torquerequirements are present.26.01 FLUX OPTIMIZATION Activates/deactivates the flux optimization function. See FluxOptimization on page 35.NO Inactive. 0YES Active. 6553526.02 FLUX BRAKING Activates/deactivates the flux braking function. See Flux Braking onpage 34.NO Inactive. 0YES Active. 6553526.06 FLUX REF/MAX Maximum flux reference. Used if 26.07 ACTIVE FLUX CTRL is NO orif the required motor torque is > 30%.0.0…100.0% Setting range. 10 = 1%26.07 ACTIVE FLUX CTRL Activates/deactivates the active flux control.NO Motor flux percentage equals 26.06 FLUX REF/MAX. 0YES Motor flux percentage comes from the active program control. 6653526.08 FLUX REF 2 Motor flux percentage active while no run signal is present or when therequired motor torque is >10% and <30%.30.0…100.0% Setting range. 10 = 1%26.09 FLUX MIN Motor flux percentage active while required motor torque is <10%.0.0…100.0% Setting range. 10 = 1%26.10 FLUX RAMP RATE The time it takes for the flux to ramp from 26.09 FLUX MIN to 26.06FLUX REF/MAX when 26.07 ACTIVE FLUX CTRL is set to YES.0.0…100.0 s Setting range. 10 = 1 s27 BRAKE CHOPPER Control of the brake chopper.27.01 BRAKE CHOPPER CTL Activates the brake chopper control.Note: If an external chopper (e.g. NBRA-xxx) is used, parameter mustbe disabled.OFF Inactive. 0ON Active.Note: Ensure the brake chopper and resistor are installed and theovervoltage control is switched off (20.05 OVERVOLTAGE CTRL).6553627.02 BR OVERLOAD FUNC Activates the overload protection of the brake resistor. The user-adjustable variables are 27.03 BR RESISTANCE, 27.04 BR THERMTCONST and 27.05 MAX CONT BR POWER.NO Inactive. 0WARNING Active. If the drive detects an overload, it generates a warning. 1FAULT Active. If the drive detects an overload, it trips on a fault. 227.03 BR RESISTANCE Defines the resistance value of the brake resistor. The value is used inthe overload protection. See 27.02 BR OVERLOAD FUNC.0.01…100.00 Ohm Resistance value. 1 = 1 Ohm27.04 BR THERM TCONST Defines the thermal time constant of the brake resistor. The value isused in the overload protection. See 27.02 BR OVERLOAD FUNC.0.001…10000.000 s Time Constant. 1 = 1 sNo. Name/Value Description FbEq
