Control Of A Mechanical Brake - ABB ACS355 series User Manual

Control of a mechanical brake

The mechanical brake is used for holding the motor and driven machinery at zero
speed when the drive is stopped, or not powered.

Example
The figure below shows a brake control application example.
WARNING! Make sure that the machinery into which the drive with brake
control function is integrated fulfills the personnel safety regulations. Note that
the frequency converter (a Complete Drive Module or a Basic Drive Module, as
defined in IEC 61800-2), is not considered a safety device mentioned in the
European Machinery Directive and related harmonized standards. Thus, the
personnel safety of the complete machinery must not be based on a specific
frequency converter feature (such as the brake control function), but it has to be
implemented as defined in the application specific regulations.
Brake control logic is integrated
in the drive application
program. The user has to take
care of the power supply and
wiring.
Brake on/off control is through
relay output RO.
Power supply
230 VAC
Emergency
brake
M
Motor Mechanical brake
Program features 159
X1B
17 ROCOM
18 RONC
19 RONO