The device described in the manual is a 1 Way Digital Display Timer Relay Module, Model: XY-J02, designed for controlling electrical loads based on timed events. It functions as a programmable timer relay, allowing users to set specific on/off durations and cycle counts for a connected load.
Function Description:
The XY-J02 module acts as an intelligent switch that can be programmed to activate or deactivate a connected load after a specified time delay or for a set duration. It features a digital display for easy parameter setting and monitoring. The module supports various operating modes, making it versatile for different timing control applications.
The core functionality revolves around three key parameters:
- OP (On-time): The duration for which the relay remains active (closed, connecting the load).
- CL (Off-time): The duration for which the relay remains inactive (open, disconnecting the load).
- LOP (Cycle Number): The number of times the OP/CL cycle repeats. A setting of "---" indicates an infinite loop.
The module offers several operating modes (P1.1, P1.2, P1.3, P2, P3.1, P3.2, P4), each tailored for specific timing behaviors:
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P1 Modes (Trigger Signal, Relay ON for OP time, then OFF):
- P1.1 (Signal Trigger Again, Invalid): Once triggered, the relay turns on for the set OP time. Subsequent trigger signals during this period are ignored.
- P1.2 (Signal Trigger Again, Clock is Reset): If a trigger signal is received while the relay is on (during OP time), the timer resets, and the OP duration starts again from the beginning.
- P1.3 (Signal Trigger Again, Relay OFF, Stop Clock): If a trigger signal is received while the relay is on (during OP time), the relay immediately turns off, and the timing process stops.
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P2 Mode (Trigger Signal, Relay OFF for CL time, then ON for OP time, then OFF): Upon receiving a trigger signal, the relay first remains off for the set CL time, then turns on for the set OP time, and finally turns off.
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P3 Modes (Looping Cycles):
- P3.1 (Trigger Signal, Relay ON for OP time, OFF for CL time, then Loop LOP times; Signal During Cycle Disconnects Relay and Stops Timing): After a trigger signal, the relay turns on for OP time, then off for CL time. This cycle repeats for the specified LOP times. If another trigger signal is received during a cycle, the relay disconnects, and the timing stops.
- P3.2 (No Trigger Signal Required After Power-on, Relay ON for OP time, OFF for CL time, then Loop LOP times): This mode starts automatically upon power-on. The relay turns on for OP time, then off for CL time, and this cycle repeats for the specified LOP times without needing an external trigger.
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P4 Mode (Signal Hold Function): If a trigger signal is present, the timing is cleared, and the relay remains on. When the signal disappears, the relay turns off after timing the OP duration. If a signal is present during the OP timing, the timing is cleared, and the relay stays on.
Important Technical Specifications:
- Input Voltage: 6.0V to 30V DC.
- Trigger Signal Voltage: 3.0V to 24V DC.
- Power Supply Options: Can be powered via the 6.0V-30V input terminals or through a Micro USB 5.0V port.
- Timing Range: Continuously adjustable from 0.1 seconds (minimum) to 999 minutes (maximum).
- Relay Output: Features Normally Open (NO), Common (COM), and Normally Closed (NC) terminals, allowing it to control various types of loads. The relay is rated for 10A at 250VAC, 10A at 125VAC, 10A at 30VDC, and 10A at 28VDC (SRD-05VDC-SL-C type relay).
- Display: Digital LED display for showing timing values and mode selections. The decimal point position on the display indicates the timing range:
XXX. (decimal point in one place): 1 second to 999 seconds.XX.X (decimal point in ten): 0.1 seconds to 99.9 seconds.XXX (decimal point fully illuminated): 1 minute to 999 minutes.
Usage Features:
- Easy Parameter Setting: The module uses "SET," "UP," and "DOWN" buttons for intuitive navigation and parameter adjustment.
- Mode Selection: Users can easily select the desired operating mode (P1.1 to P4) by pressing and holding the "SET" button to enter the mode selection interface, then using "UP" and "DOWN" to choose, and finally pressing "SET" again to confirm.
- Timing Range Selection: After setting a parameter value, the "STOP" button is used to cycle through the decimal point positions, thereby selecting the timing range (seconds, tenths of seconds, or minutes).
- Parameter Persistence: Parameters set for one mode are independent but shared across modes where applicable. For example, if OP is set to 5 seconds in P1.1, switching to P1.2 will retain the 5-second OP setting.
- Parameter Viewing: In the main interface, a short press of the "SET" button allows users to quickly view the currently set OP, CL, and LOP parameters.
- Emergency Stop Function: A dedicated "STOP" button allows for immediate cessation of the relay's operation. This button also serves as a toggle for enabling/disabling the relay function. When the relay is off, the display shows "000" (no decimal point). When working, the display shows a decimal point.
- Wiring Flexibility: Supports both "Weak Current Control Strong Power" (separate power supplies for the module and the load) and "Sharing One Power Supply" configurations, as illustrated in the manual.
- Digital Display Clarity: The digital display clearly indicates the current timing values and modes, with the presence or absence of a decimal point providing additional context about the timing range and relay status.
Maintenance Features:
- Anti-Reverse Protection: The module incorporates anti-reverse polarity protection, preventing damage if the power input is connected incorrectly. This significantly enhances the module's durability and ease of use, especially for beginners.
- Robust Relay: The use of a standard SRD-05VDC-SL-C relay ensures reliable switching for various loads within its specified current and voltage ratings.
- Simple Reset: The "STOP" button can also be used to reset the timing in certain modes (e.g., P1.3).
- Clear Status Indication: The digital display and the presence/absence of a decimal point provide clear visual feedback on the module's operational status (working, stopped, timing range).
In summary, the XY-J02 is a user-friendly and versatile digital timer relay module suitable for a wide range of applications requiring precise time-based control of electrical devices. Its multiple operating modes, broad timing range, and protective features make it a reliable choice for hobbyists and professionals alike.
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