MITSUHASHI CORPORATION
MITSUHASHI PSM-270 Reflective Sensor

Manufacturer: MITSUHASHI CORPORATION
Model: PSM-270
This sensor uses photoelectric reflection to detect printed line marks and boundaries on a web. It is used in combination with G-series controllers and drive units for controlling web meandering. It is highly resistant to ambient light and offers high-sensitivity detection.

Drawing

① Peripheral device connection connector
② Set switch
③ Balance indicator LED
④ Channel setting switch (internal)
⑤ Center mark
⑥ Mounting bracket (left and right interchangeable)
*1: Mounting hole *2: CAN cable *3: Diagram showing left and right interchangeable
Features
- Due to its high sensitivity, it can detect even low contrast.
- Because the film surface is visible when operating the SET switch, teaching can be easily performed.
- The LED allows you to check for any misalignment of the film from its set position.
Specification
| power supply | DC24V±20% (supplied via CAN bus) |
|---|---|
| Current consumption | 35mA (at DC24V power supply voltage) |
| Usage environment | Temperature: 0-40°C, Humidity: 80% Rh or less (non-condensing) |
| mass | Approximately 350g |
| Detection target | Web edges, borders (such as print edges), line marks |
| Detection method | photoelectric reflective type |
| Detection distance | 26mm ± 2mm (distance between the front of the housing and the roll) |
| Detection range | φ6 |
| light source | White light-emitting diode |
| light-receiving element | photodiode |











