ABB SX558 3BUR000699R1 Power Distr. Unit
If breaking torque is required to quickly stop the motor, a dynamic brake can be added that loads the motor’s windings resistively. The motor should not be loaded until the servo drive is disabled. The holding brake, optional on Danaher Motion Pacific Scientific motors, is not intended to stop a spinning motor. It is designed to prevent a stopped motor from rotating due to an applied torque. Avoiding Unexpected Motion Always remove power from TB1 before working on the machine or working anywhere where injury can occur due to machine motion.
Avoiding Electrical Shock
Never power the servo drive with the cover removed or with anything attached to circuitry inside the cover. If the drive must be removed from the cabinet, wait at least five minutes after turning off power before removing any cables from the drive or removing the drive from the mounting panel. Never connect or disconnect any wiring to the drive while power is applied. Always power down and wait five minutes before connecting or disconnecting any wires to the terminals. Avoiding Burns The temperature of the drive’s heat sink and housing as well as an external regen resistor can exceed 70° C. Therefore, there is a danger of severe burns if these regions are touched.
Common problem
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