Appendix B Accessories; All Brake Resistors & Brake Units Used In Ac Motor Drives - Delta Electronics VFD S 115V Series User Manual

Compact low-cost easy-to-use general-purpose ac motor drives

Table of Contents

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.

Applicable

Motor

1/4

0.2

1/2

0.4

0.75

1.5

2.2

1/2

0.4

0.75

1.5

2.2

NOTE

Please select the brake unit and/or brake resistor according to the table. "-" means no

Delta product. Please use the brake unit according to the Equivalent Resistor Value.

If damage to the drive or other equipment is due to the fact that the brake resistors and

the brake modules in use are not provided by Delta, the warranty will be void.

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

If the minimum resistance value is to be utilized, consult local dealers for the calculation of

the power in Watt.

Please select thermal relay trip contact to prevent resistor over load. Use the contact to

switch power off to the AC motor drive!

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).

Revision August 2008, SE09, SW V2.61

Resistor

Full Load

value spec

Torque

for each AC

Motor Drive

80W 200Ω

0.110

80W 200Ω

0.216

80W 200Ω

0.427

300W 100Ω

0.849

300W 70Ω

1.262

80W 750Ω

0.216

80W 750Ω

0.427

300W 400Ω

0.849

300W 250Ω

1.262