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Tool length sensor - Z-Finder inductive PNP - Probe 14mm
Z-Finder tool length sensor inductive PNP
| NPN or PNP sensor: How to choose the right one? |
| The tool lenght sensor build with an inductive sensor are available with either NPN or PNP logic. They all need a power supply in order to work (usaully 24V), but the type of sensor depends of your wiring and controller board. NPN : the sensor produces a negative signal during an "on" state PNP : the sensor produces a positive signal during an "on" state |
In order to guarantee high repeatability, an inductive proximity switch (opener) was used.
It has deliberately avoided the use of mechanical switches, because they have a poorer repeatability over a longer period.
The inductive sensor is working towards a mechanical button regardless of the state of contacts (oxidation), compressive force, ambient temperature and humidity. Even vibrations that occur when working with CNC machines and can cause contact bounce do not affect the switching point of the inductive sensor.
Advantages of Z-Finder
The use of non-contact sensor means for the user in any case, a plus in terms of accuracy, reliability and service life:
- very high repeatability
- no migration of the switching point position
- very reliably even with vibrations and shocks
- no limitation of life by the number of switching cycles
- no failure due to dirty or corroded contacts
- no contact bounce, because solid-state output
Wiring diagrams
Datasheet (german)Manufacturer: | Responsible person: |
| Safety instructions: | ||
 | 1. | Always read and observe the safety instructions and warnings in the available documents. |
| 2. | The installation, commissioning and operation require special knowledge of machines and their proper operation, as well as basic knowledge of electrical engineering. The instructions - including those in the descriptions - must be followed carefully. | |
| 3. | The location where machines are operated must ensure that unauthorized persons - especially children - do not have access without adequate supervision. | |
| 4. | The use of kits / components usually requires additional measures and additions. | |
