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Bulletin 150 |
The Bulletin
150 SMC Dialog Plus Controller is the most recent addition to the Allen-Bradley soft
starter family and provides the latest in microprocessor-controlled starting and stopping
for three-phase, squirrel cage induction motors. This new controller also offers built-in electronic overload protection, valuable diagnostics, metering capability, and the option of communicating via different network protocols. The SMC Dialog Plus Controller can operate three-phase, squirrel cage motors rated 1-1000A @ 200-600V AC, 50Hz and 60 Hz. Control voltage is 100-240V AC or 24V AC/DC. |
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Standard Starting Methods: | |
Feature | Benefit |
Soft Start | This method has the most general application. The motor is raised to an initial torque value which is programmable from 0 to 90% of locked rotor torque. The motor voltage is gradually increased during the acceleration ramp time, which can be programmed from 0 to 30 seconds. |
Selectable Kickstart | A kickstart, or boost, at the beginning of the voltage ramp is intended to provide a current pulse of 550% of full load current. The kickstart time is adjustable from 0.0 to 2.0 seconds. This allows the motor to develop additional torque at start for loads which may need a boost to get started. |
Current Limit Start | This starting mode is used when it is necessary to limit the maximum starting current. The current limit can be programmed for 50 to 600% of full load current. |
Dual Ramp Start | This starting mode is
useful on applications that have varying loads and therefore varying starting torque
requirements. The Dual Ramp Start offers the user the option to select between two
separate Soft Start profiles with separately adjustable ramp times and initial torque
settings.
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Full Voltage Start | This mode is used for applications requiring across-the-line starting. The ramp time is less than 1/4 second. |
![]() Tel. +27 (0)53 8312 094, Fax +27 (0)53 8312 094 - e-mail: jazz@woodrow.co.za |