ABB ACS355 User Manual

Program features 157
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.
M
230 VAC
Mechanical brake
Power supply
Emergency
brake
X1B
17 ROCOM
18 RONC
19 RONO
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.
Motor

ABB ACS355 Specifications

General

Input Voltage	200 V to 240 V AC, 380 V to 480 V AC
Frequency	47 Hz to 63 Hz
Control Method	Scalar control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Modbus RTU, CANopen
Enclosure Rating	IP20
Operating Temperature	-10°C to +50°C (14°F to 122°F)
Storage Temperature	-40°C to +70°C (-40 to +158 °F)
Humidity	95% RH (non-condensing)
Altitude	Up to 1000 m (3280 ft) without derating