404 TECHNICAL INFORMATION Do not use this product as a detection device for human body protection. (For human body protection, use products compliant with the local laws and regulations such as OSHA, ANSI and IEC.) 2Installation Precautions t $BCMF %BNBHFT t Excessive force on cable inlet and sensor body may cause wire breakage. Do not pull or twist the loose wires with 15N or more. Also do not pull or twist the cab tire cords with 30N or more. t Bending radius is to be R7 or more. t When clamping the cable to stop from moving around, ensure to avoid excessive force on cable inlet and sensor body. When clamping cables in a bundle, take special care not to apply excessive force on switches. t $POOFDUJPO XJUI *OEVDUJWF -PBE t Direct connection to an inductive load will damage the switch. t If the switch is to be connected to an inductive load, include a drive circuit for the load. 2 Precautions on Electrical Wiring t $POOFDUJOH UP 1PXFS t Direct connection to the power will damage the switch and the internal element. t Install correctly noting the polarity. t (SPVOEJOH t When grounded the machine's DC power 0V, ensure to connect the switch on the GND side. (If the switch is connected on (+) side, the switch may be damaged at the moment the (–) side of switch touches the body.) t "CPVU 8JSJOH PG 4XJUDI XJUI -&% t To prevent damage to the LED due to unexpected over current, insert a current limiting resistor. t For load within the switch rating or installation onto a PLC, current limiting resistors are not necessary as long as the current is about 7mA. t The type with LED has polarity. The brown cable is positive (+), while the blue one is negative (-). Install correctly. t 8JSJOH 1. Use within the contact ratings. 2. Do not pull or twist the cable and conductor wire with excessive force. Bending radius is to be R7 or more. 3. When the machine is grounded, connect the switch to the grounded side. 4. Noises and surges may induce the over rated current and damage the switch contact. Switch wiring should be located away from power sources or noise sources. 5. When the cord is extended, use cabtyre cable with sectional areas of 0.3mm2 or more. 6. When the switch drives the relay etc., use the coil current of around 10mA. 2 Confirmation of Switch Action t $PSSFDU $JSDVJU $IFDL .FUIPE 6TJOH "OBMPH .VMUJNFUFS 2Calculation of Impact Energy &Please confirm the impact resistance of switches with stoppers, referring to each catalog page. E=1/2mv2 E: Energy J m: Mass kg v: Velocity m/s E=mgh E: Energy J g: Gravitational Acceleration 9.8m/s2 h: Drop Height m Good Example t /PSNBMMZ 0QFO $POUBDU t /PSNBMMZ $MPTFE $POUBDU Connecting as shown will damage the switch. Bad Example LED lights when the contact is closed. Analog Multimeter: Confirm in Ohms Range x10 Measurement of Contact Resistance Using Digital Multimeter. Switches with LEDs cannot be measured correctly in ohms range. Only when there is a voltage output terminal, LED ON state can be confirmed. Pure Horizontal Impact Vertical Free Fall Calculation Example m v 1/2mv2[J] 4 0.3 0.18 5 0.4 0.4 20 0.2 0.4 t Clamping of Knurled Head t Clamping with tools, such as long nose pliers, may cause damages. Tighten firmly with fingers. Switch OK NOT OK NOT OK Brown Blue Load Brown Blue Blue Brown Load Switch Switch m h v= 2gh mgh[J] 0.4 0.05 1 0.2 0.4 0.1 1.4 0.4 COM + V m V m h Current Switch Load Switch with Stopper Switch with Stopper Brown (Red) Blue (White) Switch Switch Load Load 24V Current Current 2KΩ Switch Switch +24V OV +24V OV Load Load Switch +24V Load 20mA or more OV OK OK NOT OK
RkJQdWJsaXNoZXIy MTc2MTk0OA==