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vl-t-Mini Touch(AZ 84) catalog

vl-t-Mini Touch(AZ 84) catalog
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COMPACT VL TYPE TOUCH LIMIT SWITCHES VL-T Mini Touch (AZ84) Limit Switches Operate just by touching lightly. Comes with sensitivity adjustment function and Indicates operations. FEATURES Free attachment type 1. Compact Same size as the VL mini limit switch: a compact limit switch perfectly suited to this era of space-saving. 2. Sturdy construction A sturdy construction comparable to any limit switch which uses a zinc die-cast body, a glass-weave reinforced plastic head, and a cover. The terminal cover also boasts excellent dust-proof and drip-proof capabilities. 3. Easy wiring Because this unit uses the same terminal screw wiring method as the VL mini limit switch, the wiring space is large and the wiring work easy. 4. Highly accurate position detection Because hardly any pretravel (P.T.) is necessary, highly accurate position detection is possible. Wire spring type Compliance with RoHS Directive PRODUCT TYPE Actuator Free attachment Wire spring 5. Detection of thin sheet materials is also possible Because the movement differential (M.D.) is zero, detection of thin sheet materials is also possible. 6. Level control of conducting fluids is also possible Because contact detection is possible, the level of conducting fluids can also be controlled. 7. High frequency detection possible Because the output is contactless, there is no chattering or bounce at all. This makes for fast response speed and high frequency detection, with long unit life. 8. Comes with operation display lamp Any operation can be verified by means of the blinking light-emitting diode. 9. Comes with sensitivity adjustment function The sensitivity can be set appropriate to the application by adjusting the touch sensitivity. PARTS NAMES AND FUNCTIONS Antenna • Resistance-adjustable sensitivity Easy-to-use directionless operation. A free attachment type antenna is also available. Sensitivity is adjustable within the range 20 to 50pF to suit the application. High Sensitive side Terminal screw Wide-ranging adjustability. Comes with construction attachment to prevent lead wire from slipping off the contact. Operation display lamp Glass-weave reinforced plastic cover Makes operation easy to check. Powerful environment proofing. Terminal insulation separation safeguards resulting in a high level of safety. Zinc die-cast body Highly shock resistant. Gasket Highly dust-proof and drip-proof. Cord vent Highly dust-proof and drip-proof. All Rights Reserved © COPYRIGHT Panasonic Electric Works Co., Ltd.

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3. Protective characteristics 12/24V DC (at 12V DC: approx. 6 mA, 24V DC: approx. 11 mA) Max. 10ms Max. 150 mA Rated control voltage Response time Output current Note) When used as a direct load, any DC type relay may be applied. VL-T Mini touch limit switches ć ć 2. Characteristics Allowable operating voltage Adjustable sensitivity Vibration resis- Functional tance Destructive Shock resistance Initial insulation resistance (At 500V DC) Breakdown voltage Expected life (min. operations) Power source ripple factor Ambient temperature/humidity Max. operating speed Detected object 10 to 30V DC...

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WIRING If the wiring is miswired, the unit may be damaged. Ensure that the power B is connected to the red screw, and the ground v is connected to the black screw. • Analysis figure • Cable treatment Cover screw Cable Sealing Wiring diagram Cover VL-T Mini touch limit switch 3(Red) Terminal screw • Applicable connectors Sensitivity adjustment knob Operation indicator APPLICATION HINTS 1. Fundamental applications Detection of grounded objects The resistance between objects (conductor) and ground should be less than 500Ω; if they are grounded. It has nothing to do with the volume of objects....

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VL-T (AZ84) 3. Construction of logic circuits (1) AND circuit Load R will operate only when both A and B touch limit switches are in detecting condition. + 24V (2) OR circuit Load R will operate when either A or B touch limit switch is in detecting condition. + 24V A CAUTIONS 1. Antenna 1) Material of antenna Any kind of material is usable if it is conductive. Protect it from oil, dirt and rust which may lead to non-conductivity. 2) Distance between antenna and ground At least 100 mm 3.937inch distance is required between antenna and earth. 3) Distance between antennas used in parallel More...

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