Over Heat oH1, oH2, oH3, Overload | Delta Electronics VFD-VE Series

Chapter 5 Troubleshooting

5.5 Over Heat (oH1, oH2, oH3)

AC motor driv e overheats

Heat sink overheats

Check if temperature of heat si nk No is larger than 90 OC

Yes

Temperature detection mal functions. Please contac t DELTA.

If load is too large Yes		Reduc e load
	No

If cooling fan functions normally No			Change cooling fan
	Yes

Check if cooling fan is jammed

Yes

Remove obstruction

Check if surroundi ng temperature Yes is withi n specification

Adjust surrounding temperature to speci fic ati on

Maybe AC motor drive has malfunction or misoperation due to noise. Pleas e contact

DELTA.

5.6 Overload

OL		OL1/ OL2

	Check if the setting of electronic
	thermal relay is suitable
			Yes
			Yes
				No
	If load is too large			No
	If load is too large
			Yes
			Yes

No	Modify setting

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

Reduce load or increase the power of AC motor drive

5-4	Revision August 2008, 03VE, SW V2.04

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 Over Heat oH1, oH2, oH3, Overload, OL1/ OL2

Models: VFD-VE Series

5.5 Over Heat (oH1, oH2, oH3)

DELTA.

5.6 Overload

OL1/ OL2

thermal relay is suitable

Yes

If load is too large

Reduce load or increase the power of AC motor drive

VFD-VE Series specifications