Drives and Control Solutions

Motors, Control Solutions, Power Transmission and Advanced Motion Technology                                                                 

March 31, 2020

New expansion I/O modules from AutomationDirect for the BRX stackable micro brick PLC include communications modules, universal analog I/O modules, and universal temperature combination I/O modules. Expansion modules snap onto the side of any BRX Micro PLC Unit (MPU) or BRX Remote I/O controller, creating a sturdy and rugged PLC platform.

Added BRX serial communications modules ($159.00) provide four isolated RS-232 ports that support communications flow control or RS-422 serial ports. Also available are BRX single-channel RS-232 (with flow control) and RS-422 Pluggable Option Modules ($49.00). Supported protocols include Do-more! Protocol, Modbus RTU (Master/Slave), K-Sequence, and ASCII (In/Out). Data rates are 1200 to 115,200 bps.

Universal analog I/O modules (from $159.00) have combined current and voltage options. Universal temperature modules provide thermocouple, mV level voltage, RTD or thermistor selection with 24-bit resolution. The 4-channel combination temperature I/O expansion module ($349.00) has universal temperature inputs and analog outputs. Four-channel combination temperature input / discrete output modules ($199) provide universal temperature inputs and discrete sink, source or relay outputs.

The AutomationDirect BRX PLC system is engineered, manufactured and supported in the U.S. and backed by a 2-year warranty.

For more information, visit www.automationdirect.com/brx-plcs.


Editor's Pick: Featured Article


Motor Duty CyclesWhat Are Motor Duty Cycles?

When selecting a motor, it is important to consider the required duty cycle to ensure the motor can meet the needs of the application.  This blog post and the accompanying light board video will provide a basic introduction to motor duty cycles and a few of the most common types of duty cycles.

The International Electrotechnical Commission (IEC) defines eight classifications for duty cycle which are grouped by continuous, short term, or periodic cycles.  These cycles refer to the sequence and durations in time of all aspects of a typical operation, including starting, running with no load, running with full load, electric braking, and rest. 

Read More

 

 

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Motor Feature


Servo MotorsThe ability to size servo motors correctly is imperative for motion-controlled applications, and it can be much more involved than sizing AC induction motors. Acceleration, deceleration, and running torque must still be taken into account, but the servo’s ability to dynamically control the load’s speed and position is also important. During acceleration and deceleration, peak and nominal running torque measurements must be calculated to ensure that the servo motor does not overheat during use. In addition, inertia matching between the motor and load is necessary to ensure optimum response and system performance.

 

 

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