Views:
Yes, but the brake coil can't be wired directly into the motors leads. The waveform that the drive uses to vary the speed of the motor is not suitable for energizing the brake coil because the voltage decreases as a lower speed is commanded from the drive. An electrician at the site needs to wire a control circuit using relays to properly engage, and disengage the brake through its own connection to the AC line. The Micro Series drive has two small relays, one normally open and one normally closed. Either one of these could be used to control a separate customer supplied relay that is used to properly switch the brake on and off. The relays in the drive are controlled by a parameter called RELAY. Setting this for value RUN will change the state these relays any time the drive is in a run condition. In this way the relay for the brake coil can be controlled to release the brake when you want the motor to run; and to engage the brake when you want it to stop. The drive should also be set to coast to a stop. (Locked rotor amps are high; it would cause an overload trip if the brake is engaged while the drive is trying to ramp down according to the deceleration ramp setting.)