Omron Timer DH48J-11

Description

Product Description: DH48J-11 Preset Digital Counter Relay The DH48J-11 is a high-precision, microprocessor-controlled digital counter relay featuring an 11-pin circular plug base. It features a clear, 4-digit red LED screen that displays the active count alongside a row of physical push-wheel button selectors used to set a target threshold value (ranging from 1 up to 999,900 using multiplier switches like ×1,×10, or ×100). When the input pulses from a sensor or mechanical switch match the preset number selected on the front panel, the counter automatically triggers its internal heavy-duty output relay (220VAC / 5A) to stop or redirect a machine. It also includes a built-in power failure memory function so it never loses its current count if the factory loses power. Key Technical Features Counting Range: Adjustable from 1 to 999,900 with preset multipliers. Input Options: Compatible with physical contact closures, proximity switches, photo-electric eyes, or NPN open-collector sensor signals. Reset Functions: Built-in manual front-panel reset button and external terminal pins for automated remote reset signals. Form Factor: Standard 48×48 mm DIN-sized panel square, mounting into an 11-pin circular socket base (such as the PF113A). Compatible Mechanisms & Machinery The DH48J-11 operates as a production watchdog. It counts physical items or mechanical strokes and controls other equipment when a target threshold is reached. It is widely paired with the following mechanisms: 1. Sensing Inputs (Mandatory Companions) Compatible Hardware: Inductive proximity sensors (detecting metal objects), photoelectric infrared beams (detecting boxes/bottles), and mechanical micro-switches (detecting physical lever hits). Application: As products pass down a line, they trigger the sensor, sending a digital pulse into the DH48J-11’s signal input terminals to advance the display count by one. 2. Packaging & Batching Machinery Compatible Mechanisms: Bottle filling lines, bagging machines, and box sealing stations. Application: Set the counter to a batch size (e.g., 24 bottles). Once the photoelectric sensor counts 24 units entering a box, the counter relay triggers a mechanical gate or diverter arm to push the box down the line and start counting the next batch. 3. Metal Stamping & Punching Presses Compatible Mechanisms: Industrial hydraulic punch presses, sheet metal cutters, and mechanical stamping dies. Application: Every down-stroke of the press triggers a limit switch. The counter keeps track of exactly how many parts have been stamped, alerting operators when a production run of 5,000 units is complete. 4. Wire & Cable Winding Mechanisms Compatible Mechanisms: Automatic coil winders, spooling machines, and textile spinning wheels. Application: A proximity sensor tracks the revolutions of a rotating spindle. Once the machine spins the exact preset number of wire loops (e.g., 500 rotations for an electric transformer coil), the relay fires to shut down the motor drive mechanism. 5. Standard 11-Pin Sockets & AC Contactors Compatible Control Gear: PF113A 11-pin round bases and standard AC motor contactors. Application: The unit plugs into the PF113A socket for quick DIN-rail wiring. If the counter needs to halt a high-power industrial conveyor motor when a count is reached, its 5A internal relay is wired to cut power to the primary coil of an external AC contactor.