Phase Loss

Chapter 6 Fault Code Information and Maintenance

Fault Name	Fault Descriptions		Corrective Actions
		When (one of) the output terminal(s) is
		grounded, short circuit current is more than
		50% of AC motor drive rated current, the AC
		motor drive power module may be damaged.
		NOTE: The short circuit protection is
		provided for AC motor drive protection,
	Ground fault	not for protection of the user.
	Ground fault	1. Check the wiring connections between the
		1. Check the wiring connections between the
			AC motor drive and motor for possible
			short circuits, also to ground.
		2. Check whether the IGBT power module is
			damaged.
		3.	Check for possible poor insulation at the
			output line.
	Short-circuit is
	detected between	Return to the factory
	upper bridge and	Return to the factory
	lower bridge of the
	IGBT module

	DC BUS over-voltage
	during acceleration
	(230V: DC 450V;	1.	Check if the input voltage falls within the
	460V: DC 900V)	1.	Check if the input voltage falls within the
	460V: DC 900V)		rated AC motor drive input voltage range.
	DC BUS over-voltage		rated AC motor drive input voltage range.
	DC BUS over-voltage	2.	Check for possible voltage transients.
	during deceleration	2.	Check for possible voltage transients.
	during deceleration	3.	If DC BUS over-voltage due to
	(230V: DC 450V;	3.	If DC BUS over-voltage due to
	(230V: DC 450V;		regenerative voltage, please increase the
	460V: DC 900V)		regenerative voltage, please increase the
	460V: DC 900V)		Deceleration Time or add an optional
	DC BUS over-voltage		Deceleration Time or add an optional
	DC BUS over-voltage		brake resistor.
	in constant speed		brake resistor.
	in constant speed
	(230V: DC 450V;
	460V: DC 900V)
	Hardware failure in	Check if input voltage is within specification
	voltage detection	range and monitor if there is surge voltage.
	DC BUS voltage is
	less than Pr.06-00
	during acceleration
	DC BUS voltage is
	less than Pr.06-00	1.	Check if the input voltage is normal
	during deceleration	1.	Check if the input voltage is normal
	DC BUS voltage is	2.	Check for possible sudden load
	less than Pr.06-00 in
	constant speed
	DC BUS voltage is
	less than Pr.06-00 at
	stop
		Check Power Source Input if all 3 input phases
	Phase Loss	are connected without loose contacts.
	Phase Loss	For models 40hp and above, please check if
		For models 40hp and above, please check if
		the fuse for the AC input circuit is blown.

6-2	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 Provided for AC motor drive protection, Phase Loss

Models: VFD-VE Series

provided for AC motor drive protection,

Ground fault

not for protection of the user.

VFD-VE Series specifications