Case Study of Highly Accurate Multi-Point Stopping of a Belt Conveyor Without Using a Positioning Sensor
Issue
Reducing the Number of Sensors and Enacting Multiple-Point Stopping
Conventional Equipment
A three-phase induction motor drives the conveyor and multiple positioning sensors conduct multiple-point stop of the conveyor (An inverter is used for speed control)
- Application
- Transporting loads
Conventional Problems
- The large number of sensors and accessory components increases the labor-hours required for wiring and maintenance
- Problems like disconnections and malfunctions occur often
Solution
RKII Series stepper motor
Built-in Controller Type
High-Precision Multi-Point Stopping without the Need for Positioning Sensors
The Stepper Motor RKII Series can carry out highly accurate multiple-point stopping without relying on positioning sensors.
Specific Application Examples
High Accuracy Multiple-Point Stop Without Sensors
By setting the travel amount from the start to the stop position in the driver before operations, the built-in controller type can stop at the desired position. No positioning sensors are required, so the system can respond flexibly to increases in the number of stop positions.
Start/stop responsiveness is superb and there are no overruns. The stop position does not vary even after repeated positioning, which improves repeatability.
A self-holding force is generated in the energized state to maintain the stop position.
Dedicated Software Makes Setting and Driving of Multiple-Point Stopping Easy
Up to 4 data points with different travel amounts and speeds can be connected and driven with a single START input.
Setting operation data is easily done on a computer using the MEXE02 support software.
Reduction of Motor Size and Weight
Compared to induction motors, motors can undergo downsizing, which contributes to smaller and lighter equipment.
