Appendix B Accessories

B.1 All Brake Resistors & Brake Units Used in AC Motor Drives

Note: Please only use DELTA resistors and recommended values. Other resistors and values will void Delta’s warranty. Please contact your nearest Delta representative for use of special resistors. The brake unit should be at least 10 cm away from AC motor drive to avoid possible interference. Refer to the “Brake unit Module User Manual” for further details.

Voltage

 

 

115V/230V

Series

 

 

460V

Series

 

 

Applicable

Full Load

Resistor

Brake Resistors

Braking

 

Min. Equivalent

Motor

value spec

Torque

Model and No.

Torque

Resistor Value for

hp

kW

Nm

for each AC

of Units Used

10%ED

each AC Motor Drive

Motor Drive

 

 

 

 

 

 

 

1/4

0.2

0.110

80W

200Ω

BR080W200

1

400

120Ω

 

 

 

 

 

 

 

 

 

1/2

0.4

0.216

80W

200Ω

BR080W200

1

220

120Ω

 

 

 

 

 

 

 

 

 

1

0.75

0.427

80W

200Ω

BR080W200

1

125

80Ω

2

1.5

0.849

300W

100Ω

BR300W100

1

125

55Ω

3

2.2

1.262

300W 70Ω

BR300W70

1

125

35Ω

1/2

0.4

0.216

80W

750Ω

BR080W750

1

230

470Ω

1

0.75

0.427

80W

750Ω

BR080W750

1

125

260Ω

2

1.5

0.849

300W

400Ω

BR300W400

1

125

190Ω

3

2.2

1.262

300W

250Ω

BR300W250

1

125

145Ω

 

 

 

 

 

 

 

 

 

NOTE

1.Please select the brake unit and/or brake resistor according to the table.

2.If damage to the drive or other equipment is due to the fact that the brake resistors and the braking modules in use are not provided by Delta, the warranty will be void.

3.Take into consideration the safety of the environment when installing the brake resistors.

4.If the minimum resistance value is to be utilized, consult local dealers for the calculation of the power in Watt.

5.Please select thermal relay trip contact to prevent resistor over load. Use the contact to switch power off to the AC motor drive!

6.When using more than 2 brake units, equivalent resistor value of parallel brake unit can’t be less than the value in the column “Minimum Equivalent Resistor Value for Each AC Drive” (the right-most column in the table).

7.Please read the wiring information in the user manual of the brake unit thoroughly prior to

Revision August 2006, SE08, SW V2.61

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Delta Electronics VFD007S23A manual Appendix B Accessories, All Brake Resistors & Brake Units Used in AC Motor Drives

VFD007S23A specifications

Delta Electronics VFD007S23A is a highly versatile and efficient variable frequency drive (VFD) designed to control AC motors and enhance energy savings in various industrial applications. Known for its robust performance, this drive provides precise motor control and has become a preferred choice in industries requiring reliable and efficient motor management.

One of the main features of the VFD007S23A is its compact design, which makes it suitable for installations with limited space. With a compact size of only 200mm in height, 150mm in width, and 110mm in depth, it can be easily integrated into existing systems without needing extensive modifications.

The VFD supports a wide range of input voltages, accommodating 200V to 240V three-phase power supply. It is capable of delivering up to 0.75 kW of power, making it suitable for various applications including fans, pumps, and conveyors. Its adjustable frequency output allows for speed control, enhancing process efficiency and reducing energy consumption.

Equipped with advanced control technologies, the VFD007S23A offers both scalar and vector control modes. Scalar control is ideal for applications where precise speed control is not critical, while vector control provides superior torque performance, making it ideal for applications requiring high acceleration and deceleration. This feature allows users to achieve optimal performance regardless of the application requirements.

Incorporating features such as keypad programming, the VFD includes user-friendly interface allowing for easy setup and adjustments. The drive also supports various communication protocols, including Modbus RTU, enabling seamless integration into existing automation systems.

Another significant characteristic is its built-in protection features, including over-voltage, under-voltage, phase loss, and overload protection. These safety features ensure the durability and reliability of the device, extending its lifespan and minimizing downtime.

Additionally, the VFD007S23A is designed with energy efficiency in mind. It features an energy-saving mode that can reduce energy consumption significantly in variable load applications. By adjusting the motor speed according to the actual load demand, users can achieve lower operational costs while contributing to environmental sustainability.

In conclusion, Delta Electronics VFD007S23A stands out as an efficient and reliable choice for variable frequency drive applications. Its robust design, advanced control technologies, and energy-saving features make it ideal for a wide range of industrial applications, ensuring optimal performance and operational efficiency.