Brake Module
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Brake Module
In a typical escalator machine brake control circuit, a fixed voltage is abruptly applied or
removed to control the position of the brake. There is no control of the rate at which the brake
moves — the command is simply on, or off. Control voltages are provided to pick, hold, and
drop the brake.
A brake control module, used for permanent magnet, disk brake applications, allows the level of
the control voltage to be adjusted. Modulated voltages provide control over the entire range of
brake movement. The module provides the ability to control the rate at which the brake
descends onto the braking surface. With this ability, brake control can be more subtle resulting
in a smoother ride under all motion conditions in which the brake plays a part, saving energy,
and reducing brake coil temperatures.
The MCE brake module can be controlled by discrete inputs or through a CAN interface. Dis-
crete control provides compatibility with MCE legacy controls. If a machine has dual indepen-
dent brakes with one being used as an unintended motion emergency brake and the other as the
standard machine brake, two modules are required.
Figure 9. Motion Brake Module
Logic TC-FCL
Heat sink
Inverter power supply TC-FCP
Logic power supply TC-LPS on mBrake Rev 2
(board not used on mBrake Rev 3 or higher)
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