Creative Conners Stagehand Pro 3, Reference Manual

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Stagehand Pro 3 Reference Manual, 11-20
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Motor
The motor power source is 230VAC 3P with a variable frequency from 0.5Hz – 60Hz. AC motors
vary speed in response to a changing frequency. Every machine will require a motor power
connection.
Motor Brake
The motor brake power source is 208/230VAC 1P with a fixed frequency that matches the input
power source (typically 60Hz in the United States and 50Hz abroad). The motor brake is a small,
fast-acting brake that holds the motor shaft in place when the machine is stopped. The motor brake
uses the mechanical advantage of the speed reducer (aka gearbox) to increase its holding ability.
The Stagehand Pro 3 expects that the motor brake will be fully released within 60ms of receiving
power.
Under normal operation, the motor brake is only engaged once the motor has come to a controlled,
complete stop. The motor brake needs power to release. If power is removed, the motor brake will
engage by spring force. This is a “fail-safe” brake, it fails to a safe condition by engaging when
power is lost. Not all machines explicitly require a motor brake, but we recommend using motor
brakes in all applications. All of Creative Conners’ machines are built with a motor brake.
Load Brake
The load brake power source is 208/230VAC 1P with a fixed frequency that matches the input power
source (typically 60Hz in the United States and 50Hz abroad). In lifting applications, a second brake
is required to provide redundant protection in case of equipment failure. Often, this second brake is
placed directly on the output side of the speed reducer. If either the speed reducer or the motor