YASKAWA V1000 Quick Start Manual

Also see for PROFINET V1000: Technical manual Setup Quick start guide Quick start guide Technical manual

Contents

Torque CharacteristicsTorque characteristics differ compared to operating the motor directly from line power. Theuser should have a full understanding of the load torque characteristics for the application.Vibration and ShockThe drive settings allow the user to choose between high carrier PWM control and low carrierPWM. Selecting high carrier PWM can help reduce motor oscillation.Take particular caution when using a variable speed drive for an application that isconventionally run from line power at a constant speed. If mechanical resonance occurs, installshock-absorbing rubber around the base of the motor and enable the Jump frequency selectionparameter to prevent continuous operation in the resonant frequency range.Audible NoiseNoise created during run varies by the carrier frequency setting. When using a high carrierfrequency, audible noise from the motor is comparable to the motor noise generated whenrunning from line power. Operating above the rated r/min, however, can create unpleasantmotor noise.n Using a Synchronous Motor• Synchronous motors cannot be started directly from line power. Applications requiring linepower to start should use an induction motor with the drive.• A single drive is not capable of running multiple synchronous motors at the same time. Usea standard induction motor for such setups.• At start, a synchronous motor may rotate slightly in the opposite direction of the Runcommand depending on parameter settings and motor type.• The amount of starting torque that can be generated differs by each control mode and bythe type of motor being used. Set up the motor with the drive after verifying the startingtorque, allowable load characteristics, impact load tolerance, and speed control range.Contact Yaskawa or your Yaskawa agent if you plan to use a motor that does not fall withinthese specifications.• Braking Torque: In Open Loop Vector Control for PM motors, braking torque is less than125% when running between 20% to 100% speed, even with a braking resistor. Brakingtorque drops to less than half when running at less than 20% speed.• Load Inertia: In Open Loop Vector Control for PM motors, the allowable load inertiamoment is approximately 50 times higher than the motor inertia moment or less. ContactYaskawa or your Yaskawa agent concerning applications with a larger inertia moment.• Holding Brake: When using a holding brake in Open Loop Vector Control for PM motors,release the brake prior to starting the motor. Failure to set the proper timing can result inspeed loss. Not for use with conveyor, transport, or hoist type applications.• Restarting a Coasting Motor: To restart a coasting motor rotating at over 200 Hz while inthe V/f control mode, use the Short Circuit Braking function to first bring the motor to astop. Short Circuit Braking requires a special braking resistor. Contact Yaskawa or yourYaskawa agent for details.i.3 Application PrecautionsYASKAWA ELECTRIC TOEP C710606 47A YASKAWA AC Drive – V1000 Quick Start Guide 23