-
Powered Roller Control
be mixed within a material handling system, providing maximum flexibility to the user. Motor-Driven Roller Control - Holjeron. Your browser does not support script. Search. Motor-Driven Roller Control. The use of 24V Brushless DC Motor-Driven Rollers (MDR) (also known as motorized roller or powered...
-
Lower Control Voltages Reduce Shock Hazard
. As devices such as PLC's, I/O devices, HMI machines, and valve actuators continue to be designed for 24-Vdc systems, the demand for 24-Vdc motor controls also will continue. In the field of motor control, products such as Cutler-Hammer's Intelligent Technologies (IT) 24-Vdc Soft Starter delivers all...
-
Architectures for Economical Motion
are still the dc servomotor, the brushless-dc motor, and the stepmotor. But distinctly different from 20 years ago, and perhaps a little surprising, is that the choice of motor has little effect on the overall cost and architecture of the control system. What used to be the most-complicated...
-
Wireless DeviceNet Leaps Material Handling Barriers
nodes that can perform. wireless DeviceNet transmitter, CQM1 PLC, RFID data carrier and drive motor. intelligent processes. This kind of `decentralized control' allows users to meet frequently changing. production requirements, use existing space more effectively and react faster to customer orders...
-
Indexing
AC chopper. frequency control. With each phase step, the motor moves as. 1. Extremely high resolutions are available with encoders and in. magnetic repulsion forces take effect. The movement is pre-. combination with gearing. dictable because of the defined number of poles and properties of. 2...
-
Making sense of motion networks
to several motors. The central PC could be a software program, a microprocessor, or PLC. An example of a flat motion-control system is a printing press with multiple, servocontrolled spools. Because timing and latency are critical metrics in such a machine, a central controller (often a PC or PLC...
-
Why Pay For More Than You Need?
in the control. The KI motor offers. scheme. Varying the DC voltage to the motor varies the speed, and in most cases. brushless technology. the life of the motor is easily increased by a factor of 5 or more. 2-wire KI motors. with simple, two-wire. are for single-direction applications. Other KI motors...
-
Basic Types
through software. The computer controls the time period between control pulses using precalculated constants stored in memory tables. These constants may be optimized empirically by running various motor velocity versus time trials....
-
Microstepping
trend is to integrate the indexer, drive, and power supply in one package. These systems are low in cost and sophisticated enough to control machines directly with no external computer or PLC. They store a variety of motion-control programs in nonvolatile memory. And some units accept position...
-
MICRO: Green Manufacturing
- portional control valve driven by a stepper motor, and proportional integral derivative control electronics. The unit receives a 0-10-V dc or 4-20-mA setpoint signal of the desired flow range and controls the proportional valve's position to achieve the desired flow rate. Figure 4 shows a schematic...