Delta VFD-M-D series User Manual

Contents

Delta VFD-M-D series User Manual Manual pdf 144 page image

Revision Jan. 2007, MDE2, SW V1.05 B-1Appendix B AccessoriesB.1 All Braking Resistors & Braking Units Used in AC Motor DrivesNote: Please only use DELTA resistors and recommended values. Other resistors and values will voidDelta’s warranty. Please contact your nearest Delta representative for use of special resistors.ApplicableMotorVoltagehp kWFullLoadTorqueNmResistorvalue specfor each ACMotor DriveBraking UnitModel VFDBNo. of UnitsUsedBraking ResistorsModel and No. ofUnits UsedBrakingTorque10%EDMin. EquivalentResistor Valuefor each ACMotor Drive230V Series0.5 0.4 0.216 80W 200Ω -- BR080W200 1 220 200 ΩNOTE1. Please select the factory setting resistance value (Watt) and the duty-cycle value (ED%).2. If damage to the drive or other equipment are due to the fact that the braking resistors and thebraking modules in use are not provided by Delta, the warranty will be void.3. Take into consideration the safety of the environment when installing the braking resistors.4. If the minimum resistance value is to be utilized, consult local dealers for the calculation of theWatt figures.5. Please select thermal relay trip contact to prevent resistor over load. Use the contact to switchpower off to the AC motor drive!6. When using more than 2 braking units, equivalent resistor value of parallel braking unit can’t beless than the value in the column “Minimum Equivalent Resistor Value for Each AC Drive” (theright-most column in the table).7. Please read the wiring information in the user manual of braking unit thoroughly prior to takinginto operation.