Rockwell-automation 1560E SMC Flex Smart Motor Controller Manual de usuario descargar pdf (Pagina 13)

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SMC-Flex™ Control Module (cont.)

Other features that offer further user benefit include:

• Extensive protection features

• Metering

• Communication capability

Innovative control option provides enhanced performance:

• Pump Control (Start and Stop Control modes)

These modes, features and options are further described in this chapter.

: This option utilizes gating patterns which result in motor and line currents that produce noise and vibration

in the motor and/or distribution transformer. The factory should be consulted before applying this option.

Starting Modes Soft Start

This mode has the most general application. The motor is given an initial

torque setting, which is user-adjustable from 0 to 90% of locked-rotor

torque. From the initial torque level, the output voltage to the motor is

steplessly increased during the acceleration ramp time. The acceleration

ramp time is user-adjustable from 0 to 30 seconds. Once the MV SMC-Flex

controller senses that the motor has reached the up-to-speed condition during

the voltage ramp operation, the output voltage automatically switches to

full voltage, and the bypass contactor is closed.

Figure 1.1– Soft Start

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Rockwell-automation 1560E SMC Flex Smart Motor Controller Manual de usuario Pagina 13