Chapter 6 Fault Code Information and Maintenance

6.1 Fault Code Information

The AC motor drive has a comprehensive fault diagnostic system that includes several different alarms and fault messages. Once a fault is detected, the corresponding protective functions will be activated. The following faults are displayed as shown on the AC motor drive digital keypad display. The six most recent faults can be read from the digital keypad or communication.

NOTE

Wait 5 seconds after a fault has been cleared before performing reset via keypad of input terminal.

6.1.1 Common Problems and Solutions

Fault Name

Fault Descriptions

 

Corrective Actions

 

 

1.

Short-circuit at motor output: Check for

 

Over-current during

 

possible poor insulation at the output

 

acceleration

 

lines.

 

(Output current

2.

Acceleration Time too short: Increase the

 

exceeds triple rated

 

Acceleration Time.

 

current during

3.

AC motor drive output power is too small:

 

acceleration.)

 

Replace the AC motor drive with the next

 

 

 

higher power model.

 

Over-current during

1.

Short-circuit at motor output: Check for

 

 

possible poor insulation at the output line.

 

deceleration

 

 

2.

Deceleration Time too short: Increase the

 

(Output current

 

 

Deceleration Time.

 

exceeds triple rated

 

 

3.

AC motor drive output power is too small:

 

current during

 

 

Replace the AC motor drive with the next

 

deceleration.)

 

 

 

higher power model.

 

 

 

 

Over-current during

1.

Short-circuit at motor output: Check for

 

steady state

 

possible poor insulation at the output line.

 

operation

2.

Sudden increase in motor loading: Check

 

(Output current

 

for possible motor stall.

 

exceeds triple rated

3.

AC motor drive output power is too small:

 

current during

 

Replace the AC motor drive with the next

 

constant speed.)

 

higher power model.

 

Hardware failure in

Return to the factory

 

current detection

 

 

 

 

 

 

 

Revision August 2008, 03VE, SW V2.04

6-1

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Delta Electronics VFD-VE Series manual Fault Code Information, Common Problems and Solutions
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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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