Motor Speed cannot be Changed | Delta Electronics VFD-VE Series

Chapter 5 Troubleshooting

5.10 Motor Speed cannot be Changed


			Motor can run but
			cannot change speed

Modify the setting	Yes		Check if the setting of the
Modify the setting			max. frequency is too low
			max. frequency is too low
No				No
No				No
		If the setting of frequency			Yes
		is out of range(upper/lower)			Yes	Modify the setting
		is out of range(upper/lower)				Modify the setting
		bound
		bound

	Yes	If the setting of
	Yes	Pr.04-00 to Pr.04-14
		Pr.04-00 to Pr.04-14
		are the same

Press UP/DOWN key to see if speed has any change

If there is any change of the signal that sets frequency (0-10V and 4-20mA)

Yes

No	Check if the wiring between
	M1~M6 to DCM is correct	No

Yes

Connect correctly

Check if frequency for
each step is different	No
Yes

Check if the wiring of external terminal is correct

Yes

Change defective potentiometer

No If accel./decel. time is very long

Yes

Please set suitable accel./decel. time by load inertia

Change frequency setting

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

Revision August 2008, 03VE, SW V2.04

5-7

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.

Delta Electronics VFD-VE Series manual Motor Speed cannot be Changed

Models: VFD-VE Series

5.10 Motor Speed cannot be Changed

VFD-VE Series specifications