Delta Electronics VFD007S23A User Manual

 

Revision August 2006, SE08, SW V2.61

 

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. 

 

Applicable 

Motor 

Voltage 

hp 

kW 

Full Load

Torque 

Nm 

Resistor 

value spec 

for each AC 

Motor Drive 

Brake Resistors 

Model and No. 

of Units Used 

Braking 

Torque 

10%ED

Min. Equivalent 

Resistor Value for 

each AC 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 

115V/230V 

Series 

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 

460V 

Series 

3  

2.2 

1.262 

300W 250Ω 

BR300W250 1 

125 

145Ω 

 

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