User manual OMRON K3NC

[. . . ] Up/Down Counting Meter K3NC · 50-kHz input range for high-speed signal processing. · A wide selection of outputs: relay, transistor, BCD, linear, or communications. · Prescale function available, which displays in units of actual physical parameters (length, volume, etc. ). · Built-in sensor power supply (12 VDC, 80 mA). [. . . ] Used to indicate set values sequentially on the SV display. Available for Set Value LED Models only. PROG: Lit or flashes while parameters are being set. Lit when the teaching function is enabled and flashes when the K3NC is in teaching operation. The counting value is reset by pressing this key. Teaching is available when the teaching function is enabled. The digit being set is scrolled by pressing the Shift Key. The set value increases by one whenever the Up Key is pressed. 7. Up Key and Shift Key Up/Down Counting Meter K3NC C-141 Counters Engineering Data Derating Curve for Sensor Power Supply Max. current (mA) Note: The derating curve shown is for standard installation. The derating curve depends on the mounting direction. Ambient temperature (°C) C-142 Up/Down Counting Meter K3NC Dimensions Note: All units are in millimeters unless otherwise indicated. Panel Cutouts PV Display 45+0. 8 -0 14. 2 92+0. 8 -0 8. 2 75 OUT5 OUT4 OUT3 OUT2 OUT1 1 OUT 2 4 3 5 RESET 120 Note: The K3NC uses M3. 5 terminals. A terminal cover is provided. Up/Down Counting Meter K3NC C-143 Counters Precautions !WARNING Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock. Correct Use Long-term Use Use all products within the specified ranges. When using inside a control panel, ensure that the temperature around the product, rather than the temperature around the control panel, does not exceed the specified temperature range. Electronic products, such as this product, have a lifetime that is dependent on the lifetime of internal electronic components, as opposed to the lifetime related to the number of relay switching operations. The lifetime of these components varies with the temperature; the higher the temperature, the shorter the lifetime. Therefore, the product lifetime can be extended by lowering the internal temperature of the product. When several Counting Meters are mounted close together (either horizontally or vertically), the internal temperature of the Counting Meters may rise, leading to a reduction in the lifetime. In this case, take measures to cool the Counting Meters, such as installing fans. Ensure, however, that the terminals are not cooled as this may lead to incorrect measurement. !Caution Do not allow metal objects or conductive wire cuttings to enter the product. Doing so may result in electric shock, fire, or malfunction. !Caution Do not attempt to take the product apart or touch any internal parts while the power is being supplied. Doing so may result in electric shock. !Caution Do not use the product in locations subject to flammable or explosive gases. [. . . ] ) are not RUN Mode Press the ESC Key and Up Key for 1 s. Protect Mode Protect menu All key protection Press the Mode Key for 1 s. Set value change prohibition Maximum/minimum value reset prohibition prot all (See note. ) sUset Displayed only for models with comparative outputs. mm. rst Menus protected in Setting Mode secr Key-protection ON: kpon Key-protection OFF: kpoff Note: Press the Shift Key to make it possible to set or change parameters. Menu display Parameter display Meaning of parameter All key protection: All key operations are prohibited in RUN Mode. (If all key protection is ON, only the key for going to Protect Mode is enabled. ) Set value change prohibition: Changes to comparative set values are prohibited in RUN Mode. (Displayed only for models with comparative outputs. ) Reset prohibition: Resetting the counting value using the front panel keys is prohibited. (Resetting by external signals is not prohibited. ) Menus protected in Setting Mode: Setting operations in Setting Mode are prohibited in the way shown below. [. . . ]