CUTES DBU304-022 Manual de instalação - Página 4

Procurar online ou descarregar pdf Manual de instalação para Unidade de controlo CUTES DBU304-022. CUTES DBU304-022 7 páginas. Dynamic braking unit

Dynamic Braking Unit Installation Manual

1. Preface

Thank you for choosing CUTES's breaking module.DBU30 braking unit helps dissipate regenerative energy from the three-phase

induction motor when in applications that required sudden deceleration. With DBU30 Braking Unit, the regenerative energy will be

dissipated in dedicated braking resistor. To prevent electrical fire or human injury, follow the instruction manual before wiring. The

DBU30 braking unit is designed for use with the CUTES's VFD models. The Braking Resistor is designed for use with DBU30

braking unit(Refer to this manual for more information).When ordering new copies of the manual, contact a CUTES representative

or download on our documentation website（http://www.cutes.com.tw/）。

2. Specifications

DBU Braking Unit Selection

Operation Explanation：

For safety consideration,

install an overload relay

between the braking unit and

the braking resistor. In

conjunction with the magnetic

contactor (MC) prior to the

drive, it can perform complete

protection against

abnormality.

The purpose of installing

the thermal overload relay is

to protect the braking resistor

from damage due to frequent braking, or due to braking unit keeping operating resulted from unusual high input voltage. Under

such circumstance, just turn off the power to prevent damaging the braking resistor.

Please refer to the specification of the thermal overload relay.

The alarm output terminals (RA, RC) of the braking unit will be activated when the temperature of the heat sink exceeds

95°C. It means that the temperature of the installation environment may exceed 50°C or the braking %ED may exceed 10%ED.

Braking Resistor Selection