Chapter 5 Troubleshooting

5.11 Motor Stalls during Acceleration

 

Motor stalls during

 

 

 

 

 

 

Check if acceleration

 

Yes

Increase setting time

 

 

acceleration

 

 

 

 

 

 

time is too short

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

Check if the inertia

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use special motor?

 

 

 

 

 

 

 

 

 

of motor and load

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

are very high

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thicken or shorten the

 

 

Yes

 

Check if the voltage of

 

Reduce load or

wiring between the

 

 

 

terminal is lower than

 

increase the capacity

motor or AC motor drive

 

 

 

 

 

 

before

 

 

 

 

 

 

 

 

of AC motor drive

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

Reduce load or

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check if the load torque

 

 

 

 

increase the capacity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is too high

 

 

 

 

 

 

 

 

 

 

 

of AC motor drive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maybe AC motor drive has

 

 

 

 

 

 

 

 

Check if the torque

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

malfunction or misoperation

 

 

 

 

 

 

 

 

compensation is suitable

 

 

 

 

due to noise. Please contact

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

DELTA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Increase torque compensation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.12 The Motor does not Run as Expected

Motor does not run

 

Check if V/f characteristic

No

Adjust V/f characteristic

 

and torque compensation

 

as expected

 

 

 

 

 

 

 

and lower torque compensation

 

 

is suitable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

Please use specific motor

 

Run in low speed continuously

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

If load is too large

 

 

 

 

 

 

 

Reduce load or increase the

 

 

 

 

No

 

 

capacity of AC motor drive

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check if output voltage of U, V W

 

 

 

Motor has malfunction

 

 

is balanced

 

 

 

 

 

 

 

 

No

Maybe AC motor drive has malfunction or misoperation due to noise. Please contact DELTA.

5-8

Revision August 2008, 03VE, SW V2.04

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Image 223
Delta Electronics VFD-VE Series manual Motor Stalls during Acceleration, Motor does not Run as Expected
Page 222 Page 224

VFD-VE Series specifications

Delta Electronics VFD-VE Series is a state-of-the-art variable frequency drive (VFD) designed to enhance energy efficiency and improve the operational capabilities of various industrial applications. Renowned for its reliability and performance, the VFD-VE Series serves a diverse range of sectors including manufacturing, HVAC, and water treatment.

One of the primary features of the VFD-VE Series is its advanced control algorithms, which provide precise speed and torque control for AC motors. The series utilizes a vector control method that enables excellent dynamic response and a wide speed range. This is particularly beneficial for applications requiring variable speeds or precise positioning, as it ensures smooth acceleration and deceleration while maintaining optimal performance.

The VFD-VE Series stands out with its Energy Saving Technology. By intelligently optimizing motor control parameters based on the load, the VFD can significantly reduce energy consumption. This built-in functionality not only helps companies save on electricity costs but also contributes to a lower carbon footprint, aligning with global sustainability efforts.

Another key characteristic of the VFD-VE Series is its user-friendly interface. Equipped with a clear and intuitive LCD display, it simplifies monitoring and adjustments, allowing operators to configure settings easily. Additionally, the series supports various communication protocols such as Modbus, EtherCAT, and CANopen, enabling seamless integration with existing control systems for enhanced automation.

The VFD-VE Series is built to withstand harsh industrial environments. Its robust design includes features such as IP20 or IP55 ingress protection ratings, ensuring reliable operation even in dusty or humid conditions. Furthermore, the drives are equipped with advanced thermal management systems that prevent overheating, thereby prolonging the lifespan of the equipment.

Safety is also a priority in the VFD-VE Series, which incorporates multiple safety features such as overvoltage, undervoltage, and overcurrent protection. These safeguards help protect both the drive itself and the connected machinery, minimizing downtime and reducing maintenance costs.

Overall, Delta Electronics VFD-VE Series combines cutting-edge technology, energy efficiency, and robust design to meet the dynamic needs of modern industrial automation. With its advanced features and reliable performance, it is an ideal choice for businesses aiming to optimize their processes and achieve greater energy savings.
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